nimh batteries [RE-wrenches]

Jay Peltz, Peltz Power jay at asis.com
Mon Feb 28 21:47:56 PST 2005


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Hi Doug,

With lead acid anyway, the capacity is based on rate of discharge.

I was making the same assumption with the NiMH.  Therefore the capacity is
going to be tested at some rate of discharge.

Since in your tests you recorded pretty much what they were rated at, what
rate of discharge were you using?

Thanks,
jay

> Rate? As in how fast can you discharge it?
> Or Capacity, as in how many milli-amp hours will it deliver?
>
> The capacity is printed right on every rechargeable battery, and that's
all
> I tested. If I drew a known number of milli-amps, how many hours till the
> voltage dropped under 1.0v.
>
> The rate usually isn't listed, although some rechargeables list a maximum
> charging rate. It's a pretty safe bet that you shouldn't take it out much
> faster than you can put it in. The rate varies with size, but if memory
> serves me, most AA size cells don't appreciate more than 500-600 mA.
>
> Was your answer there?
> -Doug
>

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