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28 February 2005 @ 08:01 am
NiMH  
I bought a cheap 256MB MP3 player, which runs on a single AAA.
Now, the battery seems to last pretty well, but I would still need to replace the battery once every week or so.
Batteries are, of course, rather expensive.
I thought, therefore, that it would be more cost effective to shell out $40 odd bucks for a charger and a couple of NiMH rechargeables.
So, does anyone have any experience with NiMH batteries?
How long do they last per charge (compared to standard batteries)?
How long do they last before needing to be replaced?
Are there any other issues I should be aware of?
 
 
 
Outlier Manlukeii on February 27th, 2005 10:23 pm (UTC)
I just did the same for my Digital Camers - the batteries have yet to run out for the first time.
Robet Éivaayvah on February 27th, 2005 11:51 pm (UTC)
Well, generally, I think that rechargeables last about 70-80% as long... (it might be more though -- I haven't had much opportunity to actually compare).

Though that also depends on the kind of batteries you're used to buying. I'm sure that the "E3" batteries last a lot longer.

But if you keep a spare battery with you, you shouldn't really have to worry about it. Any flat batteries will be easy enough to recharge, and nowadays, they won't throw a tantrum if you don't remove it from the charger exactly when you're supposed to.

Just make sure you drain the batteries completely every now and then (your charger should be capable). If you don't, the capacity will begin to diminish.
Tombletomble on February 28th, 2005 02:16 am (UTC)
Get a good charger (one that knows when to stop charging) and a handful of really high grade NiMH batteries, and you won't regret it. I bought a charger and a bunch of batteries, and they last as long, if not longer than regular. Since they cost about 5 times more than a standard battery, it's expensive at first, but they can be charged a couple of thousand times each, so if I don't lose them they become very very cheap per use.

So yes, highly recommended. Buy the highest maH rated ones you can get. My AA size are rated at 2200 MaH, which gives me a lot of juice.