I just finished testing one set of those AmazonBasics AA NiMH Pre-Charged Rechargeable Batteries, using my old La Crosse BC-900 Charger/Analyzer. Here are my findings:
- Right out of the box, their average remaining charge is 1946mAh. The spread is very small, ranging from 1933 to 1959mAh. Note that the date code on those cells says 'MAR2011', so they probably left factory just two months ago. Still, those numbers are really impressive.
- After just one recharge/discharge cycle (done at 700/350mA), the average capacity improved to 2217mAh. That is about 11% higher than the rated capacity of '2000mAh'. Again the spread is small, varying from 2200 to 2250mAh. Those numbers remain unchanged in subsequent recharge/discharge cycles.
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