Found this cute little guy. Battery bms seems to either be dead or cell voltage too low. Has anyone in the Linux community revived a BMS before or recharged from zero?

  • PriorityMotif@lemmy.world
    8·
    6 days ago

    i 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.

    • Thorry84@feddit.nl
      9·
      5 days ago

      The annoying thing is, a lot of modern battery protection circuits will brick themselves once they read a too low battery voltage. So not only will they not charge anymore, they will never charge, even with new cells. It’s so dumb and meant to prevent 3rd party refurbished battery packs.