I guess not, since they tend not to. I'd imagine it has to do with space for
the electrolyte and a thick enough conductor not to get too hot and get
damaged. I'm sure somebody will find a way though as its a popular size. Is
there any better life span or abuse olerance in one over the other?
Brian

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"Steven Watkins" wrote in message
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I've got some very good 18650 Panasonics - 3Ah, but there seems to be
nothing worth getting at the 14500 (AA) size. I thought LiIon was meant
to hold more power per volume, which is certainly true of the 18650s,
about double an NiMH. But 14500s are all 850mAh (the ones claiming higher
are Chinese fakes and aren't higher). So you don't actually get more
power out of an AA sized LiIon than NiMH. Can they not make LiIon cells
that small very well?