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?