Rich,
Westlake Electronics in Seattle:
http://www.westlake-electronic.com/store/search/1/SUBCAT/9V/index.htm
Energizer Industrials $1/ea
Shipping is fairly reasonable as well.
---Matt
You can get 240 Procell 9V for less than a dollar a piece and shipping
is only USD$5.00 but if you buy less they are slightly more expensive.
I suggest using rechargeable batteries. It's irresponsible to use
disposables.
The iPower 520mAh 9V is reliable and lasts longer than alkaline -
available at Coffey/LSC/Wilcox in Los Angeles, and other places too I
would guess.
As for AA, there are many threads here on which ones are best. I like
the "hybrid" type that may not last quite as long, but are good to go
if they have been sitting for a few days. Most others need a top off.
Remember, lithium batteries become less toxic to throw away the more
depleted they are, so if you use these type of disposables, then be
sure to kill them off in some less critical equipment before you throw
them away.
Robert
i have used the ipower 500 mA batteries for over 200 days of shoot
with very few problems. In lectros, audio 2020/2040 Tx, Ambient TC
slate Tx, Comteks....
-vin
Bombay, India
+919930903737
I know others have had issues with their iPower 9volts, but I swear by
mine. I still carry a package of 9 volts with me, but I have not
broken it open in a year.
It has been one of the better investments I have made, both time and
money saving
> I have assumed rechargeables, with their unsophisticated charging
> methods, are prone to accruing memory issues. No?
I killed a pair by leaving them in and on for a week. They would only take
a very short charge thereafter. I relegated that pair to garage door
openers.
Apart from my negligence they work very well.
I have a half dozen of the 1st-generation iPower 500mAh Li-Po 9V
rechargeables, and after more than a year they are all still
dependable (if beginning to show their age).
Sadly, not long after the 1st-gen 500mAh batteries came out, iPower
discontinued them in lieu of a 2-generation, slightly smaller 500mAh
which exhibited a shockingly high failure rate, and apparently very
poor quality control. This was also the case with iPowers earlier
400mAh Li-Po 9V rechargeables.
I know of a good number of people who purchased the 2nd-gen 500mAh and
were very vocal in their anger over their dismal performance.
I personally bought 3 of the 2nd-gen 500mAh shortly after the came
out, and of the 3 one was DOA, one is fairly dependable, and the 3rd
is quite unpredictable -- and this is much better than most of the
comments I've read.
The iPower 520mAh "Professional" Lithium-Polymer 9V rechargeable seems
to be a new item, so new that it does not yet appear on the iPowerUS
site.
I am very interested to hear user comments on their reliability, since
I'd like to be able to replace my aging 500mAh units with new ones if
they're dependable - and hopefully be able to recommend them.
I have about 40 or so of the ipower 500 batteries and love em. I
just ordered 8 of the new 520's for my show that starts next week.
I'll update after the first week of use.
I have heard that ipower is good about replacing faulty units. Does
anyone have an address/contact info so I might be able to return my
defective units (totaly dead, blinking charger lite)?
Thanks in advance.
Mitch
Hi Mitch, Jon, Nu, Peter, Vin, Rich, Robert and Matt.
If you want to know about batteries,I have a wealth of knowledge.
His Name is Larry.
Sorry about the false indicators on the devices. This does throw a lot
of people off.
If it helps, the ZTS battery tester reads 80% on a fully charged
iPower.
Most batteries will charge to 8.2.. Factory says 8 to 8.4 is good.
They
start lower than alkaline but hold the voltage higher. They will
deliver 80% of the capacity by 7.2.Volts. An interesting point is that
these batteries are actually 700mAh, but to use the entire capacity
would lead to a short lifespan, hence false advertizing, and Larry
would have caught us right off the bat anyway.
If you have 3 sermons a day, you will get longer life by charging
after every sermon.
But I don't know that you would get enough extra life to make it
worthwhile.
So the general rule is recharge as frequently as is reasonable, try
not to short them or
glow small wires, store them charged, keep the terminals clean, and
that is about all you can do.
In regards to the generation issue, each new version was an upgrade of
some kind, but
quality control of the Lithium and raw materials presented a lot of
unforseeable problems.
And the defects were in batches, so to some dealers/users it seemed a
disaster.
Of 2500 520 pro batteries around the world, I know of 3 failures, all
with one client.
and 2 issues starting UH400As. When some time passes we will know
better, but I can say most of the compatability issues are gone, and
so far so good.
You can take your batteries back to the dealers, the warranty is 3
months. If it is difficult to do that you can email me to work it
out.
The Pro batteries are in short supply for now, unfortunatley, and we
are trying to get stock for existing returns. I expect to have stock
in the USA, by the end of the month, at which time we will ship the
returned units.
Thanks for your patience.
Richard
Been a few weeks now and I am happier with the 500's then the 520's.
I'm not seeing any difference in the time used and with a few of the
520's, they are shorter. I'll use these in Comteks but not sure if
I'm convinced enough to keep them in my Lectros. I get 3 1/2 - 4
hours with the 500's and very little failure.