On Oct 18, 2004, at 10:58 AM, Dave VanHorn wrote:

>> I was always under the impression that one of the big advantages
>> of NiMHs was their high current capacity.  Are NiCads substantially
>>  better than NiMHs in this department?
>
> NIMH have large capacity, but don't like to deliver large currents.
> Nicad has smaller capacity, but is better at delivering large currents.


NiMH is very much better than alkaline at delivering reasonably high
currents (such as might be required by a digital camera.  1C sorts of
rates.)  NiCd is another significant step better than NiMH, especially
for discharge rates greater than 2C or so.  Vaguely similar to the
difference between LiION  (~2C) and high-discharge LiPoly (5C+)

Battery powered soldering irons tend to be scary in the current
draw, and aren't very good for their batteries...

BillW

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