5/18 I'm looking for a good rechargeable AA battery system. What do you guys
use? I'm thinking of getting a bunch of AA NiMH and a really good
charger that can do a full drain/recharge cycle to reduce memory
effect as well as battery tender since NiMH seems to lose 10% charge
per week, or AA Li-Ion with normal chargers. What do you guys think?
\_ http://www.steves-digicams.com/nimh_batteries.html
\_ http://www.candlepowerforums.com/vb/showthread.php?t=79302
The candlepower guys are scary about batteries. It's pretty
strange how much variance there is between simalarly rated
batteries, both in prefered load and total wattage.
\_ I wouldn't bother with "regular" NiMH, unless your usage
pattern is "charge, use aggressively within a week,
repeat." The obvious choice for the low-self-discharge
type is the Sanyo Eneloop, but I've had success with
cheaper Hybrio stuff (batteryjunction.com). I hear the new
MAHA Imedion are very good, too. As for the charger, I own
two MAHA C401FS as well as a MAHA C9000. I think C9000 is
a neat toy and useful at times, but most of the time, I
stick to C401FS. I hear LaCrosse charger is fine, too, as
long as you avoid the earlier revision.
\_ How's the usability for MAHA? I've heard a lot of bad
things, like having to input 48 keystrokes to charge
4 batteries properly. LAME.
\_ Yeah, it takes fair amount of key presses to make it do
interesting stuff, but I don't find it annoying at all.
\_ I recently got a LaCrosse charger, and love it.
\_ Eneloops are awesome, now you can use rechargables electronics
that don't need new batteries every month.
\_ How are Eneloops different from other NiMH rechargable
batteris? I bought the Eneloop package from Costco
(AA and AAA batteries and charger in blue plastic case), and
I'm using it just like the other rechargable batteries
(e.g. Panasonic NiMH) that I have. I haven't been paying
attention at its performance.
\_ Regular rechargables lose charge very quickly even if
they aren't used. (Like within a month.) It makes
them pretty much useless for electronics that don't
get regular use (or have a low power draw). Eneloops
on the other hand keep their charge for years. Also
they seem to last longer under high draw usage than cheap
rechargables do, even ones rated the same mah or higher.
\_ I don't use rechargeable. Alkalines are pretty cheap nowadays
and they last 2-3X as long. Besides, 1.5V >> 1.2V. This whole
1.2V thing really renders rechargeable useful for only a short
amount of time before they drop to unusable voltage.
\_ Alkalines drop to 1.2V very quickly. Rechargables stay at or
above 1.2V just as long as alkalines.
\_ doubtful. I get about 30 flashes with a brand new NiMH
rated at 2200mA, whereas I get over 100 flashes with
alkaline. As a photographer, I can't afford to have to
switch batteries all the time, or an extra clunky 12V
NiMH pack at 5-8 pounds on my belt.
\_ http://batteryboulevard.com/alkaline-aa-15-volt-vs-nimh-aa-12-volt-smackdown
Also it really depends on the NiMH batteries you use.
\_ Again, whatever people say is still FULL OF SHIT
unless they provide an exact voltage/amp chart
of different appliances in respect to time. What is
the curve, drop off point, etc. You can't just say
X is better than Y or vice versa without knowing
exactly what the driving appliance is, and what the
useful voltage for that appliance is, and what the
chart looks like. Full of shit. Aspolito you're full
of shit as expected. Try again.
\_ Oh aren't you a cranky little pissant. There are
plenty of battery geeks who have done voltage over
time charts that support me. I frankly don't give
enough of a shit to hunt down the data for some
asshole. Fuck it. Keep using non rechargable
batteries. It's not like they aren't a major
source of environmental damage and toxic landfill
waste.
\_ Ok I lied. I do give enough of a shit.
http://www.powerstream.com/AA-tests.htm
\_ Cool link, and thanks for trolling, and
you're a fucking loser.
\_ People with any social skills apologize
when they attack someone and are proven
wrong. You may want try it someday.
\_ dude, you're STUPID
\_ Are you saying he's stupid because
he's still conversing with a dick?
\_ you got trolled !op
\_ Trolls are still dicks.
\_ Thanks for the link. It seems that NiMH
is superior to all but Lithium? I guess
the Energizer Lithium is not rechargeable?
-jrleek
\_ Lithium batteries do bad things when
recharged poorly. Explosivly bad things.
\_ On a somewhat related note, I have a MAHA C401FS and Maha Powerex
and Duracell batteries I got a few years ago. I really haven't used
them all that much (maybe 20 times). There was a period of
maybe a year where I didn't use them at all. A few months ago,
I had occasion to use them again, but the batteries and/or
charger seem not to be working anymore (the batteries don't seem to
hold a charge for long). I read recently that these NiMH batteries
need to be charged on a regular basis, or else they lose their
ability to hold a charge? This seems really lame. My batteries
are only maybe 3 years old. Anyone else seen this happen?
\_ I recently found some pretty ancient energizer NiMH batteries
(6+ years old?) that I hadn't used for at least 3-4 years
and they still seem to work well.
\_ You need to 'refresh' them, ie, go through several
charge/discharge cycle to bring back the full power.
Some chargers like the LaCrosse do this automatically
for you when you select that mode. |