Zaf wrote:
I have a very nice cordless drill with a dead NiCAD Pack. The mfg
wants $50 for the 10 cell pack. Sub-Cs delivered mail order to
replace these would probaly run ~$30+. Based on what I see on the
capacity of the NiCad Sub Cs, the AA NiMH have surpassed them and are
about a buck a piece ). The only question is how much will the
(higher) battery ESR of the AAs work in a cordless drill. Any
thoughts on this?

Post the drill came with a 1 hour charger, How would a NiMH fare with
this?

The answer to your question is critically dependent on the EXACT
specifications of both battery types and the charger design.
Ohms law will tell you the effects of the higher resistance.
Remember that capacity specifications are often specified at a 20 hour
discharge rate. YMMV a LOT at 5 amps.
Bottom line is that you have little chance of finding all the info you
need to make an informed decision.

If you want to drill holes, go buy the $50 pack.
If your objective is to mess around with batteries, get some other type.
mike

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