NiMH Batteries in Pure Energy Charger
mrcpu
getting tired of trying to use my Digital Camera with the R.A. batteries as
it dies as soon as I turn on the display. I really don't want to purchase
another charger. Any suggestions?!?!
Thanks,
Rob
Bill Karoly
and worth the bucks.
Bill
"mrcpu" <evils...@myrealbox.com> wrote in message
news:vWdJ8.6663$eJ5.6...@news20.bellglobal.com...
Sirion ·
Supposedly the best NiMH charger available.
Most definitely the best we have ever had.
--
"Bill Karoly" <wmka...@telocity.com> wrote in message
news:3cf57b33$1...@nopics.sjc...
digital GAH
definately only charge NiMh batteries in a designated NiMh/NiCD charger, or
you risk fire, etc.
Greg
"mrcpu" <evils...@myrealbox.com> wrote in message
news:vWdJ8.6663$eJ5.6...@news20.bellglobal.com...
Michael Daly
Unless the charger was designed for NiMH, you may just end up shortening
the life of the batteries. The Rayovac PS4 is definitely the alternative.
Mike
Lawrence Glickman
Personal Endorsement ( unsolicited ):
"I like the PS-4 so much, I bought 3 of them"
L.Glickman
Illinois, USA
Sirion ·
--
"Lawrence Glickman" <lglickma...@ameritech.net> wrote in message
Lawrence Glickman
"Sirion ·"
<repl...@newsgroups.com> wrote:
>Lawrence, why did you not just by the company?
I know what you mean. Not enough cash, I guess.
I have about ( maybe, haven't recently counted ) over 30 NiMH cells (
new ) of sizes AA and AAA.
Now to get the *task* of charging them once or twice a week OVER WITH
in a hurry, I charge 12 at a time 8-)
If I see a need for it, I could buy _another_ one, there are a few
still left across the street at K-Mart 8-))))
Figure $3 US / battery, not counting tax, times 30 = $90 US worth of
rechargeable batteries !!!!!!!!!!!!!!!!
Gads.
Otoh, I have so many things that only take these freaky sized
batteries, that I was left with little choice but to switch to
rechargeable.
Lg
Dan Lawyer
I've been pretty happy with the Rayovacs, and I have a few Powerex, but I
haven't used them enough to comment. I sure don't like how quickly they
loose their charge when not being used, but that seems to be the nature of
the beast. If you get into 9-volts, the Rayovac NiMH are really great,
especially in that they *do not* discharge when not used, which makes them
really good for long term use. That may also be common of all 9v NiMH, it
just surprised me. They are definitely hard to find though.
Dan
"Lawrence Glickman" <lglickma...@ameritech.net> wrote in message
news:rd5bfuc5nobaq1gel...@4ax.com...
Lawrence Glickman
wrote:
>Have you chosen a favorite make yet?
Hi Dan,
Yes, I use the Rayovac *Ultra* brand NiMH exclusively. They give me
the _rated_ milliampere hours indicated on the cells.
My AAA are 700 mAh
My AA are 1600 mAh
and, that is what I -get-
So, no complaints. Is it the batteries? OR, is it the charger? Only
our hairdressers know for sure.
I am going for the FOURTH PS-4 in a few moments, so I can charge 16
cells at a time ! And note, I get an extra 2 each AA every time I buy
another charger ;-)
That will make me the ( to my knowledge ) most highly-invested PS-4
charger user in the entire group ! < my 15 minutes of Fame, until
somebody buys 5 of them ;-\
>I've been pretty happy with the Rayovacs, and I have a few Powerex, but I
>haven't used them enough to comment. I sure don't like how quickly they
>loose their charge when not being used, but that seems to be the nature of
>the beast.
Partly the nature of the beast. Some of my devices drain power even
when they are *apparently* turned-off. Like my digital voice
recorder. That needs to get a new set of charged cells about twice a
week ( AAA ), because of the clock, and so forth.
Other devices, like my flashlights, draw nothing when turned-off, and
only require charging every saturday.
> If you get into 9-volts, the Rayovac NiMH are really great,
>especially in that they *do not* discharge when not used, which makes them
>really good for long term use. That may also be common of all 9v NiMH, it
>just surprised me. They are definitely hard to find though.
>
>Dan
Hmmm. I've never had any luck with rechargeable 9 volt cells, which
when measure without load, are about 7.2 volts DC on my multimeter.
Never had any *luck* with them. Certainly, in any CRITICAL
APPLICATIONS, like smoke detectors, Alkaline Batteries ONLY should be
used; -never- rechargeables ( I add this for the newbies ).
Well, I'm up for Guinesses Book of World Records with my 4th PS-4
purchase in a few moments?
Lg
Roger Halstead
"digital GAH" <greg...@NOSPAM.mindspring.com> wrote in message
news:ad4148$9ih$1...@nntp9.atl.mindspring.net...
> Not exactly sure what a "pure energy envirocharger" is.. but I would
> definately only charge NiMh batteries in a designated NiMh/NiCD charger,
or
> you risk fire, etc.
>
I seriously doubt there is much risk of fire trying to charge NiMH in a
Nicad charger...It wouldn't have the voltage to do much charging....Nowever
charging NiCDs in a NiMH charger without a NiCD position could lead to some
excitement. Check the charger to see for what it's rated.
--
Roger (K8RI EN73)
WWW.RogerHalstead.com
N833R, World's Oldest Debonair? S#CD-2
Peter Rathmann
>
> > If you get into 9-volts, the Rayovac NiMH are really great,
> >especially in that they *do not* discharge when not used, which makes them
> >really good for long term use. That may also be common of all 9v NiMH, it
> >just surprised me. They are definitely hard to find though.
> >
> >Dan
>
> Hmmm. I've never had any luck with rechargeable 9 volt cells, which
> when measure without load, are about 7.2 volts DC on my multimeter.
This was true of all the NiCd and early NiMH '9V' batteries since they
used only 6 cells (presumably for manufacturing commonality with
alkaline designs). However, I've noticed that some of the newer NiMH
'9V' batteries have added one or two more cells so they have nominal
voltages of 8.4 or 9.6 V. These can be used in some applications that
are voltage sensitive where the older 7.2 V designs didn't work.
> Never had any *luck* with them. Certainly, in any CRITICAL
> APPLICATIONS, like smoke detectors, Alkaline Batteries ONLY should be
> used; -never- rechargeables ( I add this for the newbies ).
I see two problems with using NiMH batteries in smoke detectors: 1) the
higher self-discharge rate will limit the useful life, and 2) NiMH cells
stay at nearly constant voltage for most of their life and then drop
very rapidly - this means the little warning beeps indicating a weak
battery won't last long and could be missed if you're out of the house
at that time. The second problem could easily leave you with
non-functioning detectors without being aware of it unless you conduct
frequent manual checks.
Lawrence Glickman
wrote:
>> Hmmm. I've never had any luck with rechargeable 9 volt cells, which
>> when measure without load, are about 7.2 volts DC on my multimeter.
>
>This was true of all the NiCd and early NiMH '9V' batteries since they
>used only 6 cells (presumably for manufacturing commonality with
>alkaline designs). However, I've noticed that some of the newer NiMH
>'9V' batteries have added one or two more cells so they have nominal
>voltages of 8.4 or 9.6 V. These can be used in some applications that
>are voltage sensitive where the older 7.2 V designs didn't work.
Where do I get these *newest* versions? What is the Name of the
Brand?
Lg
Peter Rathmann
For example, the Maha '9V' has seven cells and a nominal voltage of 8.6
V, see http://www.thomasdistributing.com/maha-battery-specs.htm. The
Plainview '9V' has 8 cells and is rated with a nominal voltage of 9.6 V
- see http://www.thomasdistributing.com/9v-nimh-batteries-chargers.htm .
Lawrence Glickman
wrote:
>> Where do I get these *newest* versions? What is the Name of the
>> Brand?
>
>For example, the Maha '9V' has seven cells and a nominal voltage of 8.6
>V, see http://www.thomasdistributing.com/maha-battery-specs.htm. The
>Plainview '9V' has 8 cells and is rated with a nominal voltage of 9.6 V
>- see http://www.thomasdistributing.com/9v-nimh-batteries-chargers.htm .
Thanx Peter.
I have to bring my reading glasses to the store because the *tiny
type* on the packaging is all but incomprehensible to my eyes. Some
things I have to read under a 10X microscope ! My reading glasses are
only 3X.
I will try to get it sorted out. I have only occasional use for 9vdc.
The two main things I use 9vdc for are
1) infrared thermometer
2) Amprobe current tracer
Item 1 gets used a _lot_. Item 2 about twice a year ;)
Lg
Eric O'Connor
Lawrence Glickman <lglickma...@ameritech.net> wrote:
>I am going for the FOURTH PS-4 in a few moments, so I can charge 16
>cells at a time ! And note, I get an extra 2 each AA every time I buy
>another charger ;-)
I'll admit it, I'm a little curious as to why you charge all your
batteries at once? I have four sets of PowerEx and rotate them daily
through my Maha.
I very rarely run out of juice before I run out of digital storage
space, time, or sunlight. Sunlight being the most common factor while
geocaching. (See crossposted groups)
Peter Rathmann <prat...@attbi.com> wrote:
>I see two problems with using NiMH batteries in smoke detectors: 1) the
>higher self-discharge rate will limit the useful life, and 2) NiMH cells
>stay at nearly constant voltage for most of their life and then drop
>very rapidly - this means the little warning beeps indicating a weak
>battery won't last long and could be missed if you're out of the house
>at that time. The second problem could easily leave you with
>non-functioning detectors without being aware of it unless you conduct
>frequent manual checks.
ObAOL: Me Too...er I agree.
About the only "plus" I see (using quotes because I'm reluctant to
give any plus in the direction of this idea) is that someone who
doesn't mind doing a weekly battery swap will be better informed as to
the detectors status than someone who changes alkaline once a year.
For the record, I change the alkaline batteries in my CO and smoke
detectors every six months. I then use the remainder of the battery
life in less critical applications.
Bernard Hill
Glickman <lglickma...@ameritech.net> writes
>On Thu, 30 May 2002 04:16:59 GMT, "Dan Lawyer" <dla...@austin.rr.com>
>wrote:
>
>>Have you chosen a favorite make yet?
>
>Hi Dan,
>
>Yes, I use the Rayovac *Ultra* brand NiMH exclusively. They give me
>the _rated_ milliampere hours indicated on the cells.
>
>My AAA are 700 mAh
>My AA are 1600 mAh
>and, that is what I -get-
How do you know?
>
>> If you get into 9-volts, the Rayovac NiMH are really great,
>>especially in that they *do not* discharge when not used, which makes them
>>really good for long term use. That may also be common of all 9v NiMH, it
>>just surprised me. They are definitely hard to find though.
>>
>>Dan
>
[...]
>Hmmm. I've never had any luck with rechargeable 9 volt cells, which
>when measure without load, are about 7.2 volts DC on my multimeter.
>Never had any *luck* with them. Certainly, in any CRITICAL
>APPLICATIONS, like smoke detectors, Alkaline Batteries ONLY should be
>used; -never- rechargeables ( I add this for the newbies ).
There are two types of 9v rechargeable. The 7.2 volt has 6 cells and the
9 volt has 7 (8.4v). I have one of each and the voltage is clearly
marked on the outside.
Bernard Hill
Braeburn Software
Selkirk, Scotland
Sirion ·
came with them before the Rayovac PS4 chargers became available, and they
have been surprisingly good. The other NiMH batteries we have found
excellent and superior to any others, is the Eveready Energizer Made in
Japan and Panasonic. I heard these Energiser are made by Panasonic in
Japan, and they do look exactly the same as the Panasonic. If any
Australians are reading this, you can buy the Energiser in Coles Supermarket
battery section for $AU11.69 which is substantially cheaper than I have
found NiMH batteries anywhere else. I have a range of other brands, but I
am quickly dumping them for the Energiser NiMH batteries.
Only Rayovac we have is the 4 that came with the charger, and really have
not given them a fair test yet. I will do that and see how they go.
--
"Dan Lawyer" <dla...@austin.rr.com> wrote in message
news:%IhJ8.53727$9z5.3...@typhoon.austin.rr.com...
Sirion ·
hold 8 x AA and another case to hold 4 x AAA NiMH batteries for
transportation in the field.
--
"Eric O'Connor" <use...@waypoints.org> wrote in message
news:2jlbfu8nlj3cn8fha...@4ax.com...
>
> I'll admit it, I'm a little curious as to why you charge all your
> batteries at once? I have four sets of PowerEx and rotate them daily
> through my Maha.
>
> I very rarely run out of juice before I run out of digital storage
> space, time, or sunlight. Sunlight being the most common factor while
> geocaching. (See crossposted groups)
>
Lawrence Glickman
<use...@waypoints.org> wrote:
>
>Lawrence Glickman <lglickma...@ameritech.net> wrote:
>
>>I am going for the FOURTH PS-4 in a few moments, so I can charge 16
>>cells at a time ! And note, I get an extra 2 each AA every time I buy
>>another charger ;-)
>
>I'll admit it, I'm a little curious as to why you charge all your
>batteries at once? I have four sets of PowerEx and rotate them daily
>through my Maha.
I guess the best answer I can give, is that I have -so- many
battery-operated devices, and =so= many batteries for them, I put them
on a *schedule* for recharge so I don't inadvertently get caught with
a low power pack.
The next best answer, is that I have =so= many *projects* going on at
any time, I lose track of things at this level, so prefer to use the
Daisy Cutter approach with these things. A couple of big hits with
the chargers, and off to something else to do.
Imagine if you will, doing these 1 battery at a time. Think about it.
It would drive you nuts.
Lg
Lawrence Glickman
<ber...@braeburn.co.uk> wrote:
>In article <o1bbfuokv6p7dce8p...@4ax.com>, Lawrence
>Glickman <lglickma...@ameritech.net> writes
>>On Thu, 30 May 2002 04:16:59 GMT, "Dan Lawyer" <dla...@austin.rr.com>
>>wrote:
>>
>>>Have you chosen a favorite make yet?
>>
>>Hi Dan,
>>
>>Yes, I use the Rayovac *Ultra* brand NiMH exclusively. They give me
>>the _rated_ milliampere hours indicated on the cells.
>>
>>My AAA are 700 mAh
>>My AA are 1600 mAh
>>and, that is what I -get-
>
>How do you know?
Let me say, I haven't done laboratory-level drain experiments yet, but
if my digital camera is any indication, these AA's are going full
guns.
I can't run them down. I have a 194 capacity CF card, and when I am
through with that, I can do another 194 if I so desire, without
recharging. That's off a 4-pack of AA cells.
The AAA cells in my Sony Walkman SRF M80V are still at full scale on
the charge meter after a full week of daily use. Those are 700 mAh
and the unit takes 2 cells.
BEFORE I bought the PS-4 chargers, I was _never_ able to achieve this
level of runtime without recharging. Simply impossible.
So we come to the conclusion, anecdotal as it may be, that -either-
the cells are getting special treatment in the chargers, or the cells
are superior to the other stuff I was using. Flip a coin.
Lg
°Sirion° ·
charger. We get most definitely get superior performance from the NiMH
batteries charging them with the PS4. I would suggest on our soon to be
changed eMaps, would get an extra hour of use.
--
"Lawrence Glickman" <lglickma...@ameritech.net> wrote in message
news:mrtbfuchj5hvma6fj...@4ax.com...
Bob Salomon
rdha...@tm.net wrote on 5/30/02 1:00 AM:
As some of you have asked the first shipment of the new ANSMANN Energy 16
NiMH. NiCd chargers has arrived and we have begun shipping them to camera
stores and dive shops.
HP Marketing Corp. 800 735-4373 US distributor for: Ansmann, Braun,
CombiPlan, DF Albums, Ergorest, Gepe, Gepe-Pro, Giottos, Heliopan, Kaiser,
Kopho, Linhof, Novoflex, Pro-Release, Rimowa, Sirostar, Tetenal Cloths and
Ink Jet Papers, VR, Vue-All archival negative, slide and print protectors,
Wista, ZTS www.hpmarketingcorp.com
°Sirion° ·
acknowledged by the experts to be the ultimate.
I think you are just spamming as where are these posts that people have
asked?
Where is your proof that this charger is any good?
Where are the independent tests against the Rayovac PS4?
Where is the technical report on this charger you are spamming?
Reading the minimal information on your website. Why would you bother
buying a sub-standard 3 hour charger when the Rayovac PS4 is an hour.
Statement quote "Ansmann offers AA cell NiMh batteries in 1650, 1500 Mah and
AAA 600 Mah strengths! Ansmann has the highest output batteries available!"
The highest output batteries available are now well over 1500mAh. You would
not even bother buying 1650mAh batteries.
Could not find any quality information on these chargers at all, and nothing
even flattering.
Appears you are not price competitive against the Rayovac PS4
PLONK
--
"Bob Salomon" <b...@hpspammingcorp.com> wrote in message
>
> As some of you have asked the first shipment of the new ANSMANN Energy 16
> NiMH. NiCd chargers has arrived and we have begun shipping them to camera
> stores and dive shops.
>
> HP Spamming Corp. 800 735-4373 US distributor for: Ansmann, Braun,
> CombiPlan, DF Albums, Ergorest, Gepe, Gepe-Pro, Giottos, Heliopan, Kaiser,
> Kopho, Linhof, Novoflex, Pro-Release, Rimowa, Sirostar, Tetenal Cloths and
> Ink Jet Papers, VR, Vue-All archival negative, slide and print protectors,
> Wista, ZTS www.hpspammingcorp.com
Dan Lawyer
> snipped.................>
> > If you get into 9-volts, the Rayovac NiMH are really great,
> >especially in that they *do not* discharge when not used, which makes
them
> >really good for long term use. That may also be common of all 9v NiMH, it
> >just surprised me. They are definitely hard to find though.
> >
> >Dan
>
> Hmmm. I've never had any luck with rechargeable 9 volt cells, which
> when measure without load, are about 7.2 volts DC on my multimeter.
> Never had any *luck* with them. Certainly, in any CRITICAL
> APPLICATIONS, like smoke detectors, Alkaline Batteries ONLY should be
> used; -never- rechargeables ( I add this for the newbies ).
That's what I assumed with the 9-volt NiMH too, but it doesn't seem to be
the case. They definately *do not* loose their charge. I have a pair I
charged a few months ago, just checked with the VM at 8.95 volts. These are
the first NiMH I have ever seen that I wouldn't be worried about using for
critical applications, and low use items. I'm starting using them in my
wireless alarm system.
Glowing review of your favorite pet PS-4 I found trying to find my dang
batteries
http://www.ravenmatrix.com/products/chargers/rayovac/
These are the new Ultra NiMH, which I haven't tried yet. Mine are the first
ones they made, without the Ultra and with a gray instead of gold background
(same graphics as the alkaline). I can't seem to find any this morning.
Time for eBay shopping.
http://www.goodhumans.com/Shopping/Rechargeable_batteries/Rayovac_ultra_rech
argeable_9v_nickel_metal_hydride_battery
Dan
bfu...@no-spam.pippinf.com
That charger is designed to "recharge" Renewable Alkaline batteries,
and is not suitable for NiMH batteries.
NiMH batteries should onlyu be recharged in rechargers designed ofr
the task.
I really suggest that you buy a NiMH charger.
bfu...@no-spam.pippinf.com
<b...@hpmarketingcorp.com> wrote:
>As some of you have asked the first shipment of the new ANSMANN Energy 16
>NiMH. NiCd chargers has arrived and we have begun shipping them to camera
>stores and dive shops.
>
>HP Marketing Corp. 800 735-4373 US distributor for: Ansmann
Isn't this a commercial ad, and therefore SPAM?
Bert Hyman
news:3cf64ddb...@news.qwest.net:
> Isn't this a commercial ad, and therefore SPAM?
It's sort of a commercial post, but it didn't really offer anything
for sale. Also, as a single message, cross-posted to only three
newsgroups, it's not spam.
It actually appeared to be on-topic for the newsgroups to which it
was posted, but the charters of some of the newsgroups might not
allow commercial posts.
If you're really concerned, you could find the charters of the three
newsgroups and check it out.
--
Bert Hyman | St. Paul, MN | be...@visi.com
John Navas
In <mliJ8.569$Fr4.7...@newshog.newsread.com> on Thu, 30 May 2002
05:00:02 GMT, "Roger Halstead" <rdha...@tm.net> wrote:
>"digital GAH" <greg...@NOSPAM.mindspring.com> wrote in message
>news:ad4148$9ih$1...@nntp9.atl.mindspring.net...
>> Not exactly sure what a "pure energy envirocharger" is.. but I would
>> definately only charge NiMh batteries in a designated NiMh/NiCD charger, or
>> you risk fire, etc.
>>
>I seriously doubt there is much risk of fire trying to charge NiMH in a
>Nicad charger...It wouldn't have the voltage to do much charging....Nowever
>charging NiCDs in a NiMH charger without a NiCD position could lead to some
>excitement. Check the charger to see for what it's rated.
If NiMH is charged in a fast charger without proper NiMH-type charge
cutoff (e.g., NiCd charger), then severe overheating could easily occur.
Charge cutoff for NiMH is different than NiCd, and NiMH charging is an
exothermic (heat producing) process, whereas NiCd charging is
endothermic.
--
Best regards,
John Navas <http://navasgrp.home.att.net/>
[PLEASE NOTE: Ads belong only in rec.photo.marketplace.digital,
not rec.photo discussion groups, as per <http://rpdfaq.50megs.com/>]
John Navas
In <B91B804A.13C27%b...@hpmarketingcorp.com> on Thu, 30 May 2002 07:07:54
-0400, Bob Salomon <b...@hpmarketingcorp.com> wrote:
>As some of you have asked the first shipment of the new ANSMANN Energy 16
>NiMH. NiCd chargers has arrived and we have begun shipping them to camera
>stores and dive shops.
>
>HP Marketing Corp. 800 735-4373 US distributor for: Ansmann, Braun,
>CombiPlan, DF Albums, Ergorest, Gepe, Gepe-Pro, Giottos, Heliopan, Kaiser,
>Kopho, Linhof, Novoflex, Pro-Release, Rimowa, Sirostar, Tetenal Cloths and
>Ink Jet Papers, VR, Vue-All archival negative, slide and print protectors,
>Wista, ZTS www.hpmarketingcorp.com
Spam. Why am I not surprised.
Dave Martindale
>Has anyone tried using NiMH battereis in the Pure Energy Envirocharger? I'm
>getting tired of trying to use my Digital Camera with the R.A. batteries as
>it dies as soon as I turn on the display. I really don't want to purchase
>another charger. Any suggestions?!?!
REALLY bad idea.
The Pure Energy charger is designed for charging rechargeable alkaline
batteries, and is basically a constant-voltage device that puts out
about 1.65 V. If you put NiMH cells into it, they will draw a high
current, and continue to do so when fully charged, since their internal
voltage never reaches 1.65 V - the chemistry is different.
If you're cheap, slow trickle chargers for NiMH cells are extremely cheap.
They provide a constant current, not a constant voltage.
Fast chargers like the Rayovac PS4 or Maha 204 are better, but more
expensive.
Dave
Eric O'Connor
John Navas <spamf...@navasgroup.com> wrote:
>Spam. Why am I not surprised.
I'll pipe up a couple of reasons.
When Sirion wrote:
>>Why would you bother with any other brand charger when the PS4 is
>>acknowledged by the experts to be the ultimate.
My first thought was that Sirion owns stock in (or is in someway
financially tied to) Rayovac.
The message he was responding to clearly had commercial content, but
this made it much easier to skip.
I wrote the charter for the geocaching group, and in it I made
provisions for advertisements.
Since this happened to be for a product that all three groups can make
use of (it wasn't for FatBlocker or anything) It didn't really bother
me.
Oh, and John... Not to be overly critical or anything but if you don't
care for spam then don't include the text of the spam in your reply.
This does two things, it re-posts the spam in the group allowing the
advertisement to remain on the news feed that much longer, and it
exposes people who've previously setup kill-filters for the address.
I don't know this "Bob Salomon" from Adam.
His address screams "marketing droid" and I was convinced that he was
just someone searching on various keywords to market for his company.
Then I googled on his address and quickly came to the conclusion that
this isn't the case. He seems to be an asset in the groups he posts
in.
He even knows how to properly format a post, which goes a long way in
my book.
Eric "kusojiji" O'Connor
Harald Hanche-Olsen
| Should that not be 'Rayovac PS4'
|
| Supposedly the best NiMH charger available.
|
| Most definitely the best we have ever had.
But can it run on 230 V DC? I assume it can't, or otherwise Rayovac's
website would probably have said it does. But just to make sure,
could someone who owns such a charger take a look and see what kind of
input it specifies? I live in Norway, but spend enough time in the US
to wish for a charges that works both places.
--
* Harald Hanche-Olsen <URL:http://www.math.ntnu.no/~hanche/>
- Yes it works in practice - but does it work in theory?
bfu...@no-spam.pippinf.com
>bfu...@no-spam.pippinf.com () wrote in
>news:3cf64ddb...@news.qwest.net:
>
>> Isn't this a commercial ad, and therefore SPAM?
>
>It's sort of a commercial post, but it didn't really offer anything
>for sale. Also, as a single message, cross-posted to only three
>newsgroups, it's not spam.
it certainly DID offer something for sale: a certain charger.
>
>It actually appeared to be on-topic for the newsgroups to which it
>was posted, but the charters of some of the newsgroups might not
>allow commercial posts.
rec.photo.digital's charter is pretty specific about commercial posts.
Are you saying that if someone posts a question about battery
chargers, it's OK for stores that sell them to hawk the chargers they
sell in such groups in response? It would be on topic to do so.
>
>If you're really concerned, you could find the charters of the three
>newsgroups and check it out.
I only read one of the three, and I know that one doesn't allow
commercial posts.
Bert Hyman
news:3cf67ca4...@news.qwest.net:
> On 30 May 2002 16:12:27 GMT, Bert Hyman <be...@visi.com> wrote:
>
>>bfu...@no-spam.pippinf.com () wrote in
>>news:3cf64ddb...@news.qwest.net:
>>
>>> Isn't this a commercial ad, and therefore SPAM?
>>
>>It's sort of a commercial post, but it didn't really offer anything
>>for sale. Also, as a single message, cross-posted to only three
>>newsgroups, it's not spam.
>
> it certainly DID offer something for sale: a certain charger.
No. All it said was " [some] chargers has arrived and we have begun
shipping them to camerastores and dive shops."
> ...
> I only read one of the three, and I know that one doesn't allow
> commercial posts.
Then you should complain to the offending poster's ISP, if you're so
inclined.
Bill Karoly
"Harald Hanche-Olsen" <han...@math.ntnu.no> wrote in message
news:pcohekp...@thoth.math.ntnu.no...
°Sirion° ·
No country to my knowledge has DC current supplied domestically.
--
"Harald Hanche-Olsen" <han...@math.ntnu.no> wrote in message
news:pcohekp...@thoth.math.ntnu.no...
> + "Sirion ·":
>
mrcpu
You've solidified my desire to get a PS4 charger, IF I CAN!!! I have not
noticed them here in Canada but I'll look harder now that I know what to
look for.
As for the ONE commercial like posting, I don't have an issue because it was
very much on topic and pretty benign.
Thanks again,
Rob.
"Dave Martindale" <da...@cs.ubc.ca> wrote in message
news:ad5oj9$mlp$1...@trappist.cs.ubc.ca...
Michael Daly
> WOW. This thread really expanded fast! I want to thank everyone who posted.
> You've solidified my desire to get a PS4 charger, IF I CAN!!! I have not
> noticed them here in Canada but I'll look harder now that I know what to
> look for.
Best price I found was Mountain Equipment Coop if there's one near you.
I haven't checked Wal Mart, though. Expect them to be more than twice
the US price!!!!
Mike
mrcpu
and sometimes walk over to MEC before taking the Spadina street car up to
the subway.
Cheers,
Rob
"Michael Daly" <michaelZA...@rogers.com> wrote in message
news:jJDJ8.146549$ah_....@news01.bloor.is.net.cable.rogers.com...
Nigel
Nigel.
"mrcpu" <evils...@myrealbox.com> wrote in message news:aOKJ8.11492$t97.2...@news20.bellglobal.com...
bfu...@no-spam.pippinf.com
>bfu...@no-spam.pippinf.com () wrote in
>news:3cf67ca4...@news.qwest.net:
>
>> On 30 May 2002 16:12:27 GMT, Bert Hyman <be...@visi.com> wrote:
>>
>>>bfu...@no-spam.pippinf.com () wrote in
>>>news:3cf64ddb...@news.qwest.net:
>>>
>>>> Isn't this a commercial ad, and therefore SPAM?
>>>
>>>It's sort of a commercial post, but it didn't really offer anything
>>>for sale. Also, as a single message, cross-posted to only three
>>>newsgroups, it's not spam.
>>
>> it certainly DID offer something for sale: a certain charger.
>
>No. All it said was " [some] chargers has arrived and we have begun
>shipping them to camerastores and dive shops."
Oh, pardon me.
And why do *YOU* think it was posted? So that their customers would be
notified that the chargers are now in stock?
Get real. It was an ad.
Dave Herzstein
>
>"mrcpu" <evils...@myrealbox.com> wrote in message
>7...@news20.bellglobal.com...
>
>> WOW. This thread really expanded fast! I want to thank everyone who posted.
>> You've solidified my desire to get a PS4 charger, IF I CAN!!! I have not
>> noticed them here in Canada but I'll look harder now that I know what to
>> look for.
>
>Best price I found was Mountain Equipment Coop if there's one near you.
>I haven't checked Wal Mart, though. Expect them to be more than twice
>the US price!!!!
>
>Mike
Fry's Electronics has them for $25 (with 2 NiMH AA cells).
I bought one, brought it home, and charged the 2 included cells. The
cells got so hot that the plastic casings on both cells split open -
and they were literally too hot to handle. I returned that PS4 and
its 2 cells. The next one that I bought worked just fine.
--
Dave Herzstein
dherz...@juno.com
http://www.kjsl.com/~dave
Harald Hanche-Olsen
| Yes, it sure does run on 230vAC~
Okay, thanks for the good news.
| No country to my knowledge has DC current supplied domestically.
Er, that was a rather silly typo on my part. Must have been tired.
- Harald
Dave Martindale
>But can it run on 230 V DC? I assume it can't, or otherwise Rayovac's
>website would probably have said it does. But just to make sure,
>could someone who owns such a charger take a look and see what kind of
>input it specifies? I live in Norway, but spend enough time in the US
>to wish for a charges that works both places.
The charger itself runs on 12 VDC. All you'd need to use it in Europe
and the US is either
- Two different wall warts, one 120 VAC in and the other 230 VAC in,
that output 12 VDC 1.5 A
- A single switching supply that operates from 100-250 VDC and provides
12 VDC at 1.5 A
Universal-voltage power supplies are pretty common for things like
laptop computers and digital cameras, so perhaps you could find a
used one with 12 V out.
Dave
Dave Martindale
>WOW. This thread really expanded fast! I want to thank everyone who posted.
>You've solidified my desire to get a PS4 charger, IF I CAN!!! I have not
>noticed them here in Canada but I'll look harder now that I know what to
>look for.
Zellers sells the charger plus a pair of AA cells for $70 CDN, which is
too much. Active Electronics sells exactly the same thing for $55 CDN.
The problem is that they are an industrial electronics distributor with
only a few storefronts across Canada.
In comparison, you can get the same package for $30 US on the other side
of the border.
Dave
j
> Thanks! I'll swing by Mec on the way home if I have time.
You don't have to knock yourself out trying to find a 1 hour charger.
Many people probably have a 14 hr ni-cad "dumb" charger in the garage
that they can use if the final charging current is C/10 or less. For
those who aren't in a hurry, get an extra set of batteries to swap out
and you're set.
j
> >>My AAA are 700 mAh
I've experienced about the same increased runtime in my Sony SRF-M32
that you get with your Walkman, but I don't use the PS4 so I think
it's definitly the batteries. I believe they are the highest capacity
AAA available, equall to what some AA's used to be.
Lawrence Glickman
Sure Joseph,
I am willing to believe that the cells are responsible for the
improved runtime rather than _just_ the PS4 charger. Overall, I am
-very- pleased with my battery *fleet* at the moment ( 32 NiMH cells )
Only my old digital voice recorder was sucking-down my AAA cells, both
Alkaline & NiMH, so I tossed it and got an Olympus VN-1800 today.
There was something about that old voice recorder that wasn't -right-.
Even with it turned off, it would drink batteries, of any make or
brand. So now, I am hopeful that the *newest* voice recorder gives me
similar results to my Walkman.
Specs on the voice recorder are 33 hrs on a pair of AAA alkaline cells
as tested at the Olympus laboratories. We shall see if this unit is
more *kind* with my NiMH. I would be happy for the NiMH AAA cells to
last a full week in the recorder before having to recharge them.
Since the recorder has only been in my hands for a few hours, it is
too early to report any results, but I am hopeful.
Lg
j
>...http://www.ravenmatrix.com/products/chargers/rayovac/
According to the Rayovac website, the PS4 does NOT charge alkalines,
so the reviewer might be mistaken.
Lawrence Glickman
You are right. The reviewer IS mistaken. The PS4 charges only NiCD
or NiMH.
Lg
Dan Lawyer
picture was a close-up showing the switch and made a point that it didn't do
alkalines.
http://www.steves-digicams.com/rayovac_nimh.html
I noticed that it also didn't say anything about a trickle charge. I have a
Maha MH-C204F 3hr charger, and it has one, but I'm not impressed with it.
It lets the batteries get way to low, before it kick in. Could be I just
have a bad unit though. Other than that, it works fine. I'll probably get
one shortly.
Dan
"j" <jose...@hotmail.com> wrote in message
news:ee8b10e6.02053...@posting.google.com...
Peter Rathmann
>
> Yea, I noticed that too, and found a review done by Steve's DigiCams and his
> picture was a close-up showing the switch and made a point that it didn't do
> alkalines.
> http://www.steves-digicams.com/rayovac_nimh.html
>
> I noticed that it also didn't say anything about a trickle charge. I have a
> Maha MH-C204F 3hr charger, and it has one, but I'm not impressed with it.
> It lets the batteries get way to low, before it kick in. Could be I just
> have a bad unit though. Other than that, it works fine.
?? Based on the documentation that came with my C204F charger it
charges the cells at 500 mA until it detects that the cells are nearing
full charge and then switches to a trickle-charge of 24 mA that
continues until the cells are removed. I.e. whenever the green LED is
on, the cells are being trickle charged. I didn't see anything about
automatic cycling of the trickle-charge function.
eisbaer
> acknowledged by the experts to be the ultimate.
> asked?
> Where is your proof that this charger is any good?
I don't think it's spam. Don't know that energy16 charger nor the rayovac
but the ansmann powerline4 charger combined 1800 NiMH batteries works well.
Batteries that lasted 2 hours in my gps320 now last for about 10 hours. I
think rayovac is well known in the states where ansmann is better known in
europe.
eisbaer
Lawrence Glickman
wrote:
Eisbaer,
In your opinion, which do you think is responsible for your 5 times
increased runtime ( 2 hrs vs. 10 hrs ).
a) the charger
or
b) the batteries you are using ( brand name please )
or
c) possible combination of both.
I have noticed an increase of runtime in my equipment, but I would not
dare say it is anywhere -near- a five times increase in performance.
Lg
eisbaer
news:fgchfuskrst0ovahf...@4ax.com...
> Eisbaer,
>
> In your opinion, which do you think is responsible for your 5 times
> increased runtime ( 2 hrs vs. 10 hrs ).
> a) the charger
> or
> b) the batteries you are using ( brand name please )
> or
> c) possible combination of both.
>
> I have noticed an increase of runtime in my equipment, but I would not
> dare say it is anywhere -near- a five times increase in performance.
>
> Lg
Both. The batteries I used before were VartaNiMH 1100mAh. When I charged
those batteries with the new ansmann charger they lasted at least 2 times
longer, say 5 hours but I don't remember exactly how long. The chargers I
used before apparently couldn't charge the batteries completely. The ansmann
batteries that came with the unit are 1800mAh which makes a big difference
with a device such as a camera or a gps. I suppose the batteries of another
brand could also perform well. Haven't tried that. So, the most important
thing is a good charger and the second important is batteries with a high
mAh (in my opinion).
eisbaer
Dan Lawyer
let them get down to a certain point and bring them back up, or keep them up
once they were fully charged. I assumed that it's trickle charge would keep
them much closer to full no matter how it worked, than it does. I put in a
set of AAAs yesterday, they charged up full to 1.42, now this morning they
are already down to 1.39 volts. A few days from now they will be down to
1.2 even with the trickle charge, so it seems kind of worthless to me.
"Peter Rathmann" <prat...@attbi.com> wrote in message
news:3CF866F0...@attbi.com...
Dale DePriest
hold the voltage right at the peak. However if I remove them for a few
days and then reinsert it seems to hold the setting but not increase it.
I need to do some further testing to understand exactly how it works.
Dale
--
_ _ Dale DePriest
/`) _ // http://users.cwnet.com/dalede
o/_/ (_(_X_(` For GPS and GPS/Palm
Bart Bailey
> On Thu, 30 May 2002 02:30:25 GMT, "Michael Daly"
> <michaelZA...@rogers.com> wrote:
>
> >"mrcpu" <evils...@myrealbox.com> wrote in message news:vWdJ8.6663$eJ5.6...@news20.bellglobal.com...
> >> Has anyone tried using NiMH battereis in the Pure Energy Envirocharger?
> >
> >Unless the charger was designed for NiMH, you may just end up shortening
> >the life of the batteries. The Rayovac PS4 is definitely the alternative.
> >
> >Mike
>
> Personal Endorsement ( unsolicited ):
> "I like the PS-4 so much, I bought 3 of them"
> L.Glickman
> Illinois, USA
Hi Larry;
My Rayovac says "PS3", what's the difference?
It was about $20 at a Walmart last year.
--
~Bart~
Bernard Hill
Glickman <lglickma...@ameritech.net> writes
PMFJI
But the life of the same set of batteries can increase dramatically over
the first 3 or 4 charges. I have experienced this personally without
changing charger.
Bernard Hill
Selkirk, Scotland
Bart Bailey
Well, a little googling and I've answered my own question:
http://www.rayovac.com/products/recharge/chargers.shtml
--
~Bart~
Lawrence Glickman
<ber...@braeburn.co.uk> wrote:
>But the life of the same set of batteries can increase dramatically over
>the first 3 or 4 charges. I have experienced this personally without
>changing charger.
>
>
>Bernard Hill
>Selkirk, Scotland
Good point!, Bernard,
I forgot about that. As you may notice, I am somewhat forgetful.
That was mentioned before by Dave Martindale, but it slipped my mind (
hence, my _dependence_ on a voice recorder and gpsr ).
My memory has more *holes* in it than a loaf of Swiss Cheese ;-\
Lg
Lawrence Glickman
wrote:
>> Hi Larry;
>>
>> My Rayovac says "PS3", what's the difference?
>> It was about $20 at a Walmart last year.
>>
>> --
>> ~Bart~
>
>Well, a little googling and I've answered my own question:
>http://www.rayovac.com/products/recharge/chargers.shtml
Hi Bart,
Sorry I didn't get back to you sooner; I was working/sleeping. My air
conditioner needed maintenance.
Yes, I think the PS4 *advantage* to me falls into 2 categories
1st = monitors each cell individually, therefore no cell ( in theory )
gets over or under charged
2nd = fast charge time. You would think and old guy like me wouldn't
care about time, but I do. I want to get my cells up and running as
fast as possible, without burning them up.
I briefly looked at the PS3, but on recommendation from somebody I
can't remember the name of, continued searching until I found the PS4.
It is a bit pricey, but I am willing to take the financial hit.
Since I have a fleet of 32 cells, that, at retail in Alkalines would
be about $15-30 US I suppose. A measly amount. Logic would say to go
with the throwaway cells, because of the low price, but then again, I
am not all that logical.
If there is a cost break-even point somewhere in this equation
4 each PS4 chargers
32 NiMH cells
I don't know where it is 8-)
Lg
George Tyrebyter
>
....
>
> If there is a cost break-even point somewhere in this equation
> 4 each PS4 chargers
> 32 NiMH cells
> I don't know where it is 8-)
My local Target has the PS4b for $30.00, => $120.00.
I see 1600 mAh NiMH batteries for $3.00 each => $96.00
Total = $216.00
My local Safeway (grocery store) has Duracell AA for $0.50 each, on
sale. So, you would need to replace 432 alkaline AA batteries to break
even. That means that you need to recharge and fully use your 32 NiMH
batteries about 13.5 times. More if you consider that the NiMH
batteries don't last as long as alkaline in some applications. And make
it 15.5 recharges if you are using the $4.00 1800 mAh NiMH batteries.
If the NiMH batteries can be recharged at least 500 times, as
advertised, then they should pay for themselves and the charger(s)
several times over.
Maybe you have convinced me to go buy one of the PS4 chargers. I looked
at one in Target (drove all over to find a store that had them), and one
of the things that I like is that it comes with a cigarette lighter
adapter, for rapidly recharging batteries in a vehicle.
--
George Tyrebyter
Clifton T. Sharp Jr.
> I seriously doubt there is much risk of fire trying to charge NiMH in a
> Nicad charger...It wouldn't have the voltage to do much charging....Nowever
> charging NiCDs in a NiMH charger without a NiCD position could lead to some
> excitement. Check the charger to see for what it's rated.
Seems the other way around to me.
A NiCD charger charges until it sees a dip after a peak. A NiMH doesn't
dip after full charge, it plateaus. So the charger would never see the
dip and would keep charging the NiMH battery well beyond full charge.
A NiMH charger charges until it sees the charging voltage stop rising.
A NiCD battery charged in one should peak, then stop, and the charger
should sense the cessation of voltage rise and shut off before the dip
that would indicate full charge.
--
If spammers weren't stupid, they'd be the idle rich instead of spammers.
- Morely Dotes
Clifton T. Sharp Jr.
> rec.photo.digital's charter is pretty specific about commercial posts.
> Are you saying that if someone posts a question about battery
> chargers, it's OK for stores that sell them to hawk the chargers they
> sell in such groups in response? It would be on topic to do so.
Usenet tradition in general says that a commercial *direct* response to
a posted question is okay. The response has to be specific to the question
and not overly advertising-ish. I'm sure there's a Usenet FAQ somewhere
that explains it better.
That said, I didn't spot anyone asking about Ansmann.
Lawrence Glickman
Thank You for the analysis, Mr Tyrebyter,
That makes me fell a whole lot better ! That tells me that, perhaps
by this wintertime, my *system* will have paid for itself. 13 or 14
weeks from now.
What started this complete switch from 1-shot to rechargeable was my
digicam. Actually, at $10/ 6-volt cell, it was killing me softly.
Even with the camera turned *off* it still drained the 1-shots to
useless in a week or so.
Then the voice recorder, which is my 21st Century equivalent of
notebook and pen. I get a fleeting idea. If I don't record it
right-away, it is gone.
Lg
Bart Bailey
> On Sat, 01 Jun 2002 17:31:09 GMT, Bart Bailey <bar...@nethere.net>
> wrote:
> >> Hi Larry;
> >>
> >> My Rayovac says "PS3", what's the difference?
> >> It was about $20 at a Walmart last year.
> >>
> >> --
> >> ~Bart~
> >
> >Well, a little googling and I've answered my own question:
> >http://www.rayovac.com/products/recharge/chargers.shtml
>
> Hi Bart,
>
> Sorry I didn't get back to you sooner; I was working/sleeping. My air
> conditioner needed maintenance.
>
> Yes, I think the PS4 *advantage* to me falls into 2 categories
> 1st = monitors each cell individually, therefore no cell ( in theory )
> gets over or under charged
My ps3 does single cell evaluation too,
a good feature if you have a three cell device, no need to pair up.
> 2nd = fast charge time. You would think and old guy like me wouldn't
> care about time, but I do. I want to get my cells up and running as
> fast as possible, without burning them up.
I think mine does a slow burn,
1600mah NiMH typically take several hours from almost dead to full
> I briefly looked at the PS3, but on recommendation from somebody I
> can't remember the name of, continued searching until I found the PS4.
>
> It is a bit pricey, but I am willing to take the financial hit.
They were both (ps3 &ps4) on pegs for the same price when I got mine,
I think Home Depot had them for a penny cheaper at the time.
$19.99 vs $19.98
I selected the one that does C's & D's for my old (pre LED) Maglites.
>
> Since I have a fleet of 32 cells, that, at retail in Alkalines would
> be about $15-30 US I suppose. A measly amount. Logic would say to go
> with the throwaway cells, because of the low price, but then again, I
> am not all that logical.
Have you tried the Rayovac renewable (renewal) alkalines?
not as many recharge cycles,
but the energy density/price ratio pencils out real nice.
> If there is a cost break-even point somewhere in this equation
> 4 each PS4 chargers
> 32 NiMH cells
> I don't know where it is 8-)
>
> Lg
--
~Bart~
Dave Martindale
>You're right, sorry I didn't understand how it worked, thinking it would
>let them get down to a certain point and bring them back up, or keep them up
>once they were fully charged. I assumed that it's trickle charge would keep
>them much closer to full no matter how it worked, than it does. I put in a
>set of AAAs yesterday, they charged up full to 1.42, now this morning they
>are already down to 1.39 volts. A few days from now they will be down to
>1.2 even with the trickle charge, so it seems kind of worthless to me.
The terminal voltage tells you very little about the actual charge state
of NiCd or NiMH cells. In this respect, they're different from alkaline
or lead-acid. If you want to know how much capacity remains in a NiMH
cell, you discharge it and measure current and time, not measure the
voltage.
Dave
Dave Martindale
>> I briefly looked at the PS3, but on recommendation from somebody I
>> can't remember the name of, continued searching until I found the PS4.
>> It is a bit pricey, but I am willing to take the financial hit.
I suspect that the PS3 uses the same charge control electronics as
the PS1, which charges AA and AAA only. In my experience, the PS1 is
a dog. Two different examples of it have caused rechargeable alkalines
to leak after charging. It also sometimes never shuts off when charging
NiMH cells. And it's not a fast charger. If the PS3 really is the same
electronics as the PS1, I suggest throwing it away.
The PS4 is a completely different animal, and works well.
Dave
Bart Bailey
> Bart Bailey <bar...@nethere.net> writes:
>
> >> I briefly looked at the PS3, but on recommendation from somebody I
> >> can't remember the name of, continued searching until I found the PS4.
>
> >> It is a bit pricey, but I am willing to take the financial hit.
>
> I suspect that the PS3 uses the same charge control electronics as
> the PS1, which charges AA and AAA only. In my experience, the PS1 is
> a dog. Two different examples of it have caused rechargeable alkalines
> to leak after charging. It also sometimes never shuts off when charging
> NiMH cells.
Mine shuts off, and the LEDs extinguish.
> And it's not a fast charger. If the PS3 really is the same
> electronics as the PS1, I suggest throwing it away.
>
> The PS4 is a completely different animal, and works well.
>
> Dave
You're quoting Larry I think,
anyway here's what I found:
http://www.rayovac.com/products/recharge/chargers.shtml
go to the bottom of that page.
ps3 & ps4 seem very similar, except ps3 accepts C's & D's but not 9v.
I like mine a lot, better than my Clearline Concepts model CL444 (battery
master).
but I'm not going out to but a half dozen more like that crazy Chicagoan ;-)
--
~Bart~
Dave Martindale
>You're quoting Larry I think,
>anyway here's what I found:
> http://www.rayovac.com/products/recharge/chargers.shtml
>go to the bottom of that page.
>ps3 & ps4 seem very similar, except ps3 accepts C's & D's but not 9v.
The important difference is that the PS4 will not charge alkalines at all.
It has electronics specialized for fast-charging NiCd and NiMH only.
The PS3 is superficially the same as the PS1 - it charges alkalines.
If it also takes something like 4-5 hours to recharge NiMH cells,
it's probably the same basic electronics design as the PS1. On the other
hand, maybe it's sufficiently different (to handle the larger cells) that
it works properly where the PS1 does not.
Dave
Lawrence Glickman
wrote:
>You're quoting Larry I think,
>anyway here's what I found:
> http://www.rayovac.com/products/recharge/chargers.shtml
>go to the bottom of that page.
>ps3 & ps4 seem very similar, except ps3 accepts C's & D's but not 9v.
>I like mine a lot, better than my Clearline Concepts model CL444 (battery
>master).
>but I'm not going out to but a half dozen more like that crazy Chicagoan ;-)
This is heartening news ! Maybe I still hold a record as being a
private individual ( vs. company/corporation ) having 4 PS-4 chargers
on my desk ! ;)
Actually, this is not a lot. I have 6 each AA in spare/standby mode,
and 4 AAA in spare/standby mode. Everything else is -in-service. It
is good to have some *spare* AA cells to bring along with my eMap.
That is about, 20 total hours of eMap runtime with the backlight
turned on. That should get me through -any- week's requirements,
before I have to recharge anything.
Lg
Bart Bailey
What about your larger (C&D) batteries, or is everything running on AAs
--
~Bart~
Trentus
Firstly is there such a beast as a rechargeable 6volt, you know the brick
with 2 spring contacts on top of it?
Secondly, I just discovered that the ubiquitous "Dolphin" torch, the
consumer extraordinare of the afore mentioned 6v batteries, now comes in a
rechargeable version. Using a lead acid battery. Does anyone know of these
Eveready Dolphin Rechargeables, and whether they are any good?
I like to have a "Dolphin" in the car, and one in the Laundry, but with
young torch loving kids, I always find they both have flat batteries, even
after buying them their own torches to play with they still use mine. So if
these Dolphins are any good, I might consider one.
Also, are any torch makers using Xenon Gas Discharge lights like the modern
cars? Apparently these use way less power than other forms, and produce
great light, so you'd think all torch makers would be using them now, but I
still haven't seen any.
I use the Rayovac 1 hour that cost nearly $100 Australian dollars (barely
enough change left to buy a coffee). I assume this is what everyone here
calls the PS4. Are there any differences?
Thanks
Trent
Bob L
if it's the same as the PS4.
Bob
"Trentus" <nospam...@bigfoot.com> wrote in message
news:eklK8.3513$Hj3....@newsfeeds.bigpond.com...
Ken Ashe
>
>anyway here's what I found:
> http://www.rayovac.com/products/recharge/chargers.shtml
>go to the bottom of that page.
>ps3 & ps4 seem very similar, except ps3 accepts C's & D's but not 9v.
Any idea what's with their illustrations?
PS1 -- small black brick.
PS3 -- large black brick.
PS4 -- four pictures on the page -- two look like they hold maybe two
batteries horizontally -- two others clearly hold four batteries vertically and
fanned-out.
Ken Ashe
>
>The terminal voltage tells you very little about the actual charge state
>of NiCd or NiMH cells. In this respect, they're different from alkaline
>or lead-acid. If you want to know how much capacity remains in a NiMH
>cell, you discharge it and measure current and time, not measure the
>voltage.
Just curious, Dave -- are you aware of any resasonably-priced meters
for this or do you have to cobble one up with a known resistance and a VOM for
some length of time?
Carl
on 6/2/02 2:25 PM:
It holds four batteries, as shown in the fanned out vertically pictures. The
charger come with two batteries which are simply laid in the opening
horizontally, they aren't actually connected to anything.
One photo shows four batteries inserted for charging, the other shows it
bundled for sale.
-Carl
Bill Bradshaw
52 AA NiMH
12 AAA NiMH
6 NiCd
1 Maha C204F
1 RayoVac PS4
I think I need a couple of more chargers.
--
<Bill>
Brought to you from beautiful Unalaska/Dutch Harbor, Alaska.
N 53°51.140' W 166°30.228' (WGS 84)
"Lawrence Glickman" <lglickma...@ameritech.net> wrote in message
news:3bbifu46k4jh1sq15...@4ax.com
Ron Lee
>Don't feel bad:
>
>52 AA NiMH
>12 AAA NiMH
Bill, I just got a C204F charger a week ago and I am getting charge
times on my Powerex 1800 AAs of over 3.5 hours. Can you comment on
the relative charge times of the same battery brand (equal discharge
state) between the two chargers you have?
Ron Lee
Lawrence Glickman
<brad...@arctic.net> wrote:
>Don't feel bad:
>
>52 AA NiMH
>12 AAA NiMH
>6 NiCd
>
>1 Maha C204F
>1 RayoVac PS4
>
>I think I need a couple of more chargers.
Hi Bill,
OK on a *couple of more chargers*
but
I am still trying to hold on to my "possible" PS-4 ownership record,
so you can buy up to a total of 4, but if you go over that, I'm back
to obscurity 8-)
70 rechargeables.......YEOW ! You need some more chargers.......
Lg
Bill Jackson
not the 1.2V of NiCad or NiMH.
They also warn you.....
In the UK the rechargeable Alkaline Manganese batteries are available under
the 'Pure Energy' brand name from several sources such as Water & Stanton,
Maplin and many others. The 'Pure Energy' name also applies to the charger
itself, and in many instances is supplied with the batteries. But please do
not use the 'Pure Energy' charger for your NiCad batteries, you're asking
for trouble if you do!
http://www.pwpublishing.ltd.uk/pw/tex/EIA27.html
"
Ken Ashe
>
>It holds four batteries, as shown in the fanned out vertically pictures. The
>charger come with two batteries which are simply laid in the opening
>horizontally, they aren't actually connected to anything.
>
>One photo shows four batteries inserted for charging, the other shows it
>bundled for sale.
Thanks. Now it's obvious.
My father was a railroad cop. He used to tell me I'd never be a
deective because I never noticed anything. He died in '61, but he's still
right.
Bill Jackson
They both have a plateau voltage until they are about 97% discharged and
then fall rapidly. On high current applications it is like a switch was
turned off.
Alkalines get a higher and higher internal resistance as they are depleted
and this leads to a lower and lower voltage under load. You can get a good
measure of an alkaline by putting a load on them and measuring the voltage
under load.
As with nicad and NiMH it is hard to test them with no load as they show
the standard electrode potential for Zinc Alkaline cells until they are very
depleted.
Thos finger press buttons on batteries are metal shorts that have a temp
sensor paint on them and they vary in width, so the better cell make a wider
area of metal hot
"
Bill Jackson
chargers for sale.
look in your state and date. Ham radio operators are big baattery users and
the Hamfests attract battery sellers who compete fiercely.
Pick your state and go. Sadly there are a lot fewer hamfests in other
countries than th USA.
There are hundreds of hamfests all summer.
they sell ham radio stuff, parts etc. Interesting if you can go see one.
Thay start at 8AM and are over by 11 AM, so early bird rules operate.
http://www.arrl.org/hamfests.html
I was at the Rochester, NY hamfest this last weekend and bought 4 AA NiMH,
1800 MAH with charger for $20.
Charger was made by Empire www.empirebat.com and the model number was
CHG1000. batteries and charger worked fine.
Bill
Dave Martindale
>Bill, I just got a C204F charger a week ago and I am getting charge
>times on my Powerex 1800 AAs of over 3.5 hours. Can you comment on
>the relative charge times of the same battery brand (equal discharge
>state) between the two chargers you have?
That seems like a reasonable time for the Maha. Its charge current is 500
mA, so even with perfect charge efficiency you'd expect a 1800 mAh cell
to take 1800/500 = 3.6 hours. 500 mA is safe for NiCd AA cells, but it
just isn't very fast for such high capacity NiMH cells.
The Rayovac PS4, when set to NiMH, uses a charge current of about 1.8 A
for AA cells. This should give just about one hour charge time for
your 1800 mAh cells.
Dave
Bill Bradshaw
chargers. The one thing I like about the PS4 is that it has individual
circuits for each battery.
--
<Bill>
Brought to you from beautiful Unalaska/Dutch Harbor, Alaska.
N 53°51.140' W 166°30.228' (WGS 84)
"Ron Lee" <ronlee...@pcisys.net> wrote in message
news:3cfa9e75...@news.pcisys.net
Bill Bradshaw
I charged a set of four 1600 mAh NiMH batteries in my RayOVac PS4
charger. After they were fully charged I moved the 4 batteries to my
MAHA C204F charger. The maha probably charged them for about an
additional 15 minutes.
Did the maha increase the charge in the battery over what the RayOVac
charged them to?
Will moving fully charged batteries from one charger to another damage
them?
Ted Edwards
> That seems like a reasonable time for the Maha. Its charge current is 500
> mA, so even with perfect charge efficiency you'd expect a 1800 mAh cell
> to take 1800/500 = 3.6 hours. 500 mA is safe for NiCd AA cells, but it
> just isn't very fast for such high capacity NiMH cells.
> The Rayovac PS4, when set to NiMH, uses a charge current of about 1.8 A
> for AA cells. This should give just about one hour charge time for
> your 1800 mAh cells.
Dave Etchells in
http://www.imaging-resource.com/ACCS/BATTS/BATTS.HTM
claims he got the most consistent charging performance with the Maha. I
don't know if he's tried the Rayovac. As I understand it, a smart
charger can charge to about 85% of capacity safely when it must then cut
back to trickle charge. If this is correct, then if you pull your cells
out of the Rayovac after its quick charge, you have only 85% of your
1800mAh or 1530 mAh. Why spend the extra money on 1800s if fully
charged 1600s would do as well or better? My practice (Maha 204) is to
leave the cells in overnight when convenient to gain the full advantage
of the topping up phase.
It seems to me the better tack is to buy some extra cells instead of
worrying over minimum charge time.
Ted
Ron Lee
web surfing. First off, if 1800 ma from the Rayovac does no harm,
then the 500 ma (starting charge) or about 24 ma (trickle) from the
Maha should not hurt either.
I suspect that you are getting a small dose of trickle charge from the
Maha.
I will accept corrections if wrong.
Ron Lee
Ron Lee
charger (or 5-6 to outdo an unnamed person here), I think I will get a
rayovac. I really have no qualms with the Maha.
Yesterday I finally threw out my old NiCad charger.
Ron Lee
Dave Martindale
> Just curious, Dave -- are you aware of any resasonably-priced meters
>for this or do you have to cobble one up with a known resistance and a VOM for
>some length of time?
No, I don't. Maha has a charger that's supposed to include a battery
analyzer, but it's designed for battery packs, not single cells.
The problem with the human-monitored VOM approach is that it's deadly
boring. You keep checking the VOM, and the battery still have voltage,
and you get bored, and stop checking it so frequently, and then you end
up not knowing exactly when the voltage dropped.
So you really need something automated. One way is to use a single-chip
microcontroller like a PIC, sampling the voltage once a second and recording
when the voltage drops to 1.0 V (or some other threshold).
Also, if you just want to compare relative capacity, a resistor load and
measuring time is fine. If you want an actual numerical value for the
capacity in mAh, you need to (a) use an electronic load that draws constant
current as the voltage changes, and measure time, or (b) use a resistive
load, but calculate the integral of voltage with respect to time over the
whole discharge period. A PIC with an A/D converter could do the latter
easily.
(Calculating the integral is needed because the current varies with
voltage).
Dave
Dave Martindale
>Dave Etchells in
>http://www.imaging-resource.com/ACCS/BATTS/BATTS.HTM
>claims he got the most consistent charging performance with the Maha. I
>don't know if he's tried the Rayovac. As I understand it, a smart
>charger can charge to about 85% of capacity safely when it must then cut
>back to trickle charge. If this is correct, then if you pull your cells
>out of the Rayovac after its quick charge, you have only 85% of your
>1800mAh or 1530 mAh. Why spend the extra money on 1800s if fully
>charged 1600s would do as well or better? My practice (Maha 204) is to
>leave the cells in overnight when convenient to gain the full advantage
>of the topping up phase.
There are two issues that seem to be getting entangled here: charger choice
and battery choice.
If you normally leave the cells in the charger overnight to bring them
to 100% capacity, then there's little useful difference between the
Maha and Rayovac chargers. Both trickle charge after fast charge, and
both should fully charge overnight.
The Rayovac shines in situations where 1 hour to (nearly) full charge
is valuable. For example, suppose you want to "top off" cells that
haven't been charged for a while, but you have to leave with them in 10
or 15 minutes. Or suppose you are making heavy use of NiMH cells in an
electronic flash or digital camera. In the latter case, if you have two
sets of cells, and if you take an hour or more to discharge one set,
you can operate continuously - you always have one set in the camera or
flash and the other in the charger. The Maha can't keep up in the
same circumstances unless you take about 4 hours to discharge one set
of cells.
This is the reason that all the pro-grade cordless power tools come with
two battery packs and a one-hour charger. Some even have 15-minute
chargers available.
There's another place where the Rayovac is useful too: applications that
use an odd number of cells. Many FRS radios use 3 cells, for example.
You can't charge 3 cells in the Maha, because it always charges pairs
of cells in series.
As for battery choice, I wouldn't bother spending extra money on
super-high capacity NiMH batteries. For one thing, it isn't clear that
the higher-rated cells actually have higher capacity - see the review
pointed to above.
>It seems to me the better tack is to buy some extra cells instead of
>worrying over minimum charge time.
That works fine if, in one night, you can charge enough cells for one
day of whatever you're doing. Usually you can.
Dave
Dave Martindale
>Here is a couple of questions for you battery experts.
>I charged a set of four 1600 mAh NiMH batteries in my RayOVac PS4
>charger. After they were fully charged I moved the 4 batteries to my
>MAHA C204F charger. The maha probably charged them for about an
>additional 15 minutes.
What you saw was the fact that a fast charger takes a while to determine
that a cell is fully charged - even if it started out absolutely full.
If you'd put the same cells *back* in the PS4, after removing them,
it would also have charged them for a short while.
>Did the maha increase the charge in the battery over what the RayOVac
>charged them to?
Maybe. The Rayovac probably shut off just short of 100% charge, and
the additional 15 minutes forced some additional current into the cells.
Not enough to make much difference in most circumstances, though.
>Will moving fully charged batteries from one charger to another damage
>them?
No, but I wouldn't recommend doing this every day. The second charge
cycle probably overcharged the cells a bit, and reduced their life a
bit. Not enough to worry about if you only did it once by mistake, but
it's not a good standard practice. So think of it as "wear" not
"damage".
If you want absolutely maximum capacity, leave the cells in the charger
overnight. The trickle charge will bring them slowly and safely to maximum
capacity.
Dave
John Navas
In <adhesh$abn$1...@trappist.cs.ubc.ca> on 3 Jun 2002 21:15:13 -0700,
da...@cs.ubc.ca (Dave Martindale) wrote:
>"Bill Bradshaw" <brad...@arctic.net> writes:
>>Here is a couple of questions for you battery experts.
>
>>I charged a set of four 1600 mAh NiMH batteries in my RayOVac PS4
>>charger. After they were fully charged I moved the 4 batteries to my
>>MAHA C204F charger. The maha probably charged them for about an
>>additional 15 minutes.
>
>What you saw was the fact that a fast charger takes a while to determine
>that a cell is fully charged - even if it started out absolutely full.
>If you'd put the same cells *back* in the PS4, after removing them,
>it would also have charged them for a short while.
>
>>Did the maha increase the charge in the battery over what the RayOVac
>>charged them to?
>
>Maybe. The Rayovac probably shut off just short of 100% charge, and
>the additional 15 minutes forced some additional current into the cells.
>Not enough to make much difference in most circumstances, though.
>
>>Will moving fully charged batteries from one charger to another damage
>>them?
>
>No, but I wouldn't recommend doing this every day. The second charge
>cycle probably overcharged the cells a bit, and reduced their life a
>bit. Not enough to worry about if you only did it once by mistake, but
>it's not a good standard practice. So think of it as "wear" not
>"damage".
There seems to be a slight misconception here -- "smart" NiMH chargers
detect end of fast charge by driving cells into overcharge -- they
cannot detect "100% charge" and so cannot stop at that point. This
modest overcharge is not terribly harmful.
--
Best regards,
John Navas <http://navasgrp.home.att.net/>
[PLEASE NOTE: Ads belong only in rec.photo.marketplace.digital,
not rec.photo discussion groups, as per <http://rpdfaq.50megs.com/>]
Dave Martindale
>There seems to be a slight misconception here -- "smart" NiMH chargers
>detect end of fast charge by driving cells into overcharge -- they
>cannot detect "100% charge" and so cannot stop at that point. This
>modest overcharge is not terribly harmful.
They detect the side effects of *some* of the plate material going into
overcharge. I don't think you can guarantee that *all* of the plate
material is fully charged at that point, though.
Dave
Peter Rathmann
that have been trickle charged for awhile after the 'smart' fast charger
turns off compared to cells that are immediately removed from the
charger at that point.
John Navas
In <adjbn0$p9q$1...@trappist.cs.ubc.ca> on 4 Jun 2002 14:33:20 -0700,
da...@cs.ubc.ca (Dave Martindale) wrote:
It's considerably beyond the point of full charge, on the order of
10-20%.
John Navas
In <3CFD3266...@attbi.com> on Tue, 04 Jun 2002 21:46:10 GMT, Peter
Rathmann <prat...@attbi.com> wrote:
That's usually due to charging batteries in pairs, particularly when
pairs are not always kept together. The less depleted battery turns off
charging prematurely from the standpoint of its mate. You should not
see such behavior in a smart charger that charges each cell
individually.