Monday, July 14, 2008

Re: [BLUG] more on batteries (was: recommendations on a good digi cam)

On Sun, Jul 13, 2008 at 03:50:57AM +0000, Mark Krenz wrote:
> As for batteries. I never understand why people want to have AA
> batteries instead of the lithium recargeable. Sure, if you lose one it
> is expensive to replace, but just don't do that. I've never had one
> fail on me, but I guess that can happen. AA rechargeable batteries
> won't last as long as actual AA batteries. Especially the Energizer
> rechargeable ones. Those suck.

My wife and I had trouble with rechargables until we found out there
were a number of ways to kill them.

AA rechargable batteries can last *longer* than actual AA batteries.
Once we started taking care of our rechargable batteries, the number of
pictures per battery change suddenly jumped way up. (And we normally use
flash.)

You need a smart recharger that won't overcharge the battery and avoids
polarity reversal.

If a rechargable battery is just left charging, it loses capacity. If it
is left for days, you can make it totally useless.

Simple overnight chargers are a quick easy way to kill rechargable
batteries. Don't use them. Instead use smart quick chargers that shut
off automatically when it is done.

Also, avoid rechargable batteries that don't support quick chargers.
They're just a waste of money. The slow chargers are much more likely
to damage the battery life. If the battery doesn't support the quick
chargers, you're basically buying little more than a single-use battery.

Cheers,
Steven Black

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