On Jan 30, 2006, at 5:26 AM, Chris Emerson wrote:

> * Needs to be quite small; the usual AA/AAA are a bit bigger
> than I'd like.  Something about the size of a CR2032 would be
> great, but could be a bit bigger

There are lithium polymer cells in that size range that deliver
~100 mAH and up to several hundred mA.  Expensive, but they
sound spot-on to your requirements.  Subject to requirements for
careful charging if you don't want them to burst into flames...

Representative listing:
http://www.bsdmicrorc.com/products.cfm?catID=10001

BillW

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