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13 days agoi have dissasembled batteries to recharge the 81650 cells inside then reassemble. If they drop below a certain threshhold then the protection circuit won’t charge them. I have a special charger/tester for lithium cells and a battery tab welder. It’s only worth it if the replacement is unavailable and it’s for something very rare.
!dull_mens_club@lemmy.world might have something to say about this.