12V Charger
Manuel
the battery? Or can I charge a few times without the risk of not being able
to start my car.
The charger is a fast-charger for 7.2 Volt 1800 mAh batteries.
Thanks,
Manuel.
vpc...@swbell.net
If your car battery is any where near healthy it should not affect it at
all, it's not necessary to leave it running.
Vince
Ian Maclaughlin
"Manuel" <snau...@hotmail.com> wrote:
> Is it necessary to let the engine of my car run, if I connect my
charger to
> the battery? Or can I charge a few times without the risk of not
being able
> to start my car.
> The charger is a fast-charger for 7.2 Volt 1800 mAh batteries.
Manuel-
A typical car battery has vastly more capacity than your 1800 mah
pack. Charging it several times from your car battery should be fine,
unless the car battery is going south anyway. You should normally not
have the car running when charging you packs, as the voltage supplied
will be too high. May be okay with some fast chargers that have good
current regulation, but unless you know that for sure, recommend that
you don't do it.
Ian
San Diego
Sent via Deja.com http://www.deja.com/
Before you buy.
Red Scholefield
is in good shape. You will take out about 2.4 AH with each charge. Your
lights on will take more than that.
Word of caution though. It's always a good idea to have a set of jumper
cables just in case. :-)
Red S.
Red's R/C Battery Clinic
http://yoda.fdt.net/~redscho
On Thu, 17 Aug 2000, Manuel wrote:
> Is it necessary to let the engine of my car run, if I connect my charger to
> the battery? Or can I charge a few times without the risk of not being able
> to start my car.
> The charger is a fast-charger for 7.2 Volt 1800 mAh batteries.
>
> Thanks,
>
> Manuel.
>
>
>
>
Mathew Kirsch
> Is it necessary to let the engine of my car run, if I connect my charger to
> the battery? Or can I charge a few times without the risk of not being able
> to start my car.
> The charger is a fast-charger for 7.2 Volt 1800 mAh batteries.
You could recharge batteries all day and still start your car at the end.
If you're nervous, keep a set of jumper cables handy, and NEVER be the
last one to leave the field... Click, click.... Uh-oh...
James G. Branaum
BTDT!!! Heck of a bummer. Wife got to make a 40 mile trip that evening!
Fast charging or flying electric is a sure way to test your automotive
battery! If you are doing this sort of stuff, jumper cables should be
trivial survival equipment to you. Not being the last to leave the flying
field should be easy since you don't need to clean up the electrics very
much. Old used electrons just sort of fall off...
Jim Branaum j...@flash.net AMA 1428
"Another modeler supplying glue to the AMA"
"Mathew Kirsch" <kir...@tallgeese.dynodns.net> wrote in message
news:jR0n5.7803$dG.2...@typhoon.nyroc.rr.com...
Tom B
my charger to
the battery?"
One additional consideration here, Manuel. I once charged a friend's
transmitter in my old Subaru wagon, and had to turn on the ignition switch
to energize the cigarette lighter outlet. Doing this also turned on the
headlights.... Forgot about that! My friend disconnected the field
charger, but did not realize that the ignition switch was on. End result
was a battery so dead that the clock stopped. Being the last one to leave
the field that night didn't help matters either. The "cure" was the
installation of an "always hot" 12V source in the rear section of the
vehicle.
A now more careful -
Tom in PGH AMA 10397
Ken Cashion
wrote:
>You will have to do a lot of charging to run your car battery down if it
>is in good shape. You will take out about 2.4 AH with each charge. Your
>lights on will take more than that.
I carry jumper cables and when I used to charge off my car, I
had a short heavy-duty jumper and connector on my car battery into
which I plugged my two chargers.
And yes, at a contest with two chargers charging batteries at
3 amps all day, when I got ready to leave, it wouldn't.
I had had the hatchback up all day and a door open -- these
had interior lamps pulling current, as well.
I was not last to leave the field -- but almost.
I now use a big 12 v car battery in the back of the car and
leave the car battery for the car.
Cheers -- Ken Cashion
--------------------------------------------------------------
Red Scholefield
Headlights....wow...nearly 5 amps each!
Do you have a provision to charge the extra battery from the car system?
Seems like that would be the way to go (no pun intended).
Red S.
Red's R/C Battery Clinic
http://yoda.fdt.net/~redscho
Ken Cashion
wrote:
>Those auto bulbs will suck up their share of power 1.5 to 2.0 amps each.
>Headlights....wow...nearly 5 amps each!
Headlights, I've not left on -- at least not at the field.
>Do you have a provision to charge the extra battery from the car system?
>Seems like that would be the way to go (no pun intended).
No, but I do charge my flight packs as I go to the field, but
from the battery in the trunk.
I can park my trunk within four feet of the shop porch (yes, I
know I am fortunate) and I have a couple of car battery chargers on
the wall over a work bench so these are used with the Astro Flight
chargers, as well as to charge the car bat -- and I use the car
battery sometimes on the work bench.
If I didn't carry that car battery that 20' a few times a
month, operating the TV remote would be the ONLY exercise I got!
Cheers -- Ken
Model Flyer
jumped, this is to ensure that noone can drive home from the flying site.
hee.........................
:-)
--
Jonathan Lowe,
Red Scholefield <red...@fdt.net> wrote in message
news:Pine.LNX.4.05.100081...@yoda.fdt.net...
> You will have to do a lot of charging to run your car battery down if it
> is in good shape. You will take out about 2.4 AH with each charge. Your
> lights on will take more than that.
>
> Word of caution though. It's always a good idea to have a set of jumper
> cables just in case. :-)
>
> Red S.
> Red's R/C Battery Clinic
> http://yoda.fdt.net/~redscho
>
> On Thu, 17 Aug 2000, Manuel wrote:
>
> > Is it necessary to let the engine of my car run, if I connect my charger
to
> > the battery? Or can I charge a few times without the risk of not being
able
> > to start my car.
> > The charger is a fast-charger for 7.2 Volt 1800 mAh batteries.
> >
> > Thanks,
> >
> > Manuel.
> >
> >
> >
> >
>
matthew
your car battery will kill it. buy the 1.5A maintinence charger $25, and
keep the marine battery plugged into it forever, and just grab the battery
and take it to the field with you
"Manuel" <snau...@hotmail.com> wrote in message
news:8nhig7$qsb$1...@news.planetinternet.be...
webspuds
> Headlights....wow...nearly 5 amps each!
--
We B. Spuds
AKA "webspuds"
webs...@hotmail.com
Red Scholefield
Red S.
Red's R/C Battery Clinic
http://yoda.fdt.net/~redscho
webspuds
Tell me, what is the bulb number that you gave me for ?
(i.e. Honda low beam etc). I have some new Slyvania
halogyn's on the shelf for a late 80's Camaro, and I'll
check tonight. The HP4651 sounds familiar...
In article <Pine.LNX.4.05.100082...@yoda.fdt.net>,
--
Red Scholefield
The bulb was a halogen head light Mfg by Sylvania. Measured with a 12 Volt
12AH Genesis (Hawker Energy) battery with a Fluke Model 87 meter at 81
degrees F. <G>
webspuds
about the same. Guess it's been a while since I measured these
things, or they've come a long way. I remember working on
a rig with regular round headlights, and remember seeing currents
in the range of 10-15 Amps. Oh well. Good work.
In article <Pine.LNX.4.05.100082...@yoda.fdt.net>,
Red Scholefield <red...@fdt.net> wrote:
> What number would you believe. Am I high or low?
>
> The bulb was a halogen head light Mfg by Sylvania. Measured with a 12
Volt
> 12AH Genesis (Hawker Energy) battery with a Fluke Model 87 meter at 81
> degrees F. <G>
>
> Red S.
> Red's R/C Battery Clinic
> http://yoda.fdt.net/~redscho
>
> On Wed, 23 Aug 2000, webspuds wrote:
>
> > Not that I doubt you, but that is *really* hard to believe.
> > Tell me, what is the bulb number that you gave me for ?
> > (i.e. Honda low beam etc). I have some new Slyvania
> > halogyn's on the shelf for a late 80's Camaro, and I'll
> > check tonight. The HP4651 sounds familiar...
> >
> >
> >
> >
> > In article <Pine.LNX.4.05.100082...@yoda.fdt.net>,
> > Red Scholefield <red...@fdt.net> wrote:
> > > How does 3.7 amps @ 12.25 volts grab you? Sylvania HP4651.
>
>
--
Red Scholefield
the 40-50 watt range. The Halogen headlamps also may be more efficient
than the regular type. The H4656 (low beam) you measured is rated at 35
watts while the H4651 (high beam) I checked is rated at 50W.
Hope this sheds some light on the subject. What has this got to do with
R/C? One of those old bulbs lying around the shop makes a good emergency
light for the shop during hurricane season when its too windy to
fly and the electric hose goes dry...Like it might get this weekend.
Red S.
Red's R/C Battery Clinic
http://yoda.fdt.net/~redscho
webspuds
> Hope this sheds some light on the subject.
> fly and the electric hose goes dry...Like it might get this weekend.
So where do you live? I lived in Miami (Kendall/ 117th, "Zoo" area)
from 84 to 89.
>
> Red S.
> Red's R/C Battery Clinic
> http://yoda.fdt.net/~redscho
>
> On Thu, 24 Aug 2000, webspuds wrote:
>
> > Nope - you are right on... I just measured a H4656, and it was
> > about the same. Guess it's been a while since I measured these
> > things, or they've come a long way. I remember working on
> > a rig with regular round headlights, and remember seeing currents
> > in the range of 10-15 Amps. Oh well. Good work.
> >
> >
> > In article <Pine.LNX.4.05.100082...@yoda.fdt.net>,
> > Red Scholefield <red...@fdt.net> wrote:
> > > What number would you believe. Am I high or low?
> > >
> > > The bulb was a halogen head light Mfg by Sylvania. Measured with
a 12
> > Volt
> > > 12AH Genesis (Hawker Energy) battery with a Fluke Model 87 meter
at 81
> > > degrees F. <G>
> > >
> > > Red S.
> > > Red's R/C Battery Clinic
> > > http://yoda.fdt.net/~redscho
> > >
> > > On Wed, 23 Aug 2000, webspuds wrote:
> > >
> > > > Not that I doubt you, but that is *really* hard to believe.
> > > > Tell me, what is the bulb number that you gave me for ?
> > > > (i.e. Honda low beam etc). I have some new Slyvania
> > > > halogyn's on the shelf for a late 80's Camaro, and I'll
> > > > check tonight. The HP4651 sounds familiar...
> > > >
> > > >
> > > >
> > > >
> > > > In article <Pine.LNX.4.05.10008231745120.2904-
100...@yoda.fdt.net>,