4 ms·

There is a neat trick where you can zap an old lithium-ion battery with an electric welder, it does something to the old chunky crystals or something like that.

• axiak 15y ago
  This is with Nicad batteries. DO NOT attempt to zap a lithium ion battery unless you have a blast shield etc.
  • dhughes 15y ago
    Ah yes I see now, my bad. It pays to Google first I guess.