I actually have some experience with backwards batteries. I grew up in my
fathers auto repair shop in the sixties. Back then if you hooked up the
jumper cables to a generator equipped car you could start the car and the
generator would reverse polarity and you could go on your merry way with a
positive ground American car. We would just leave the lights on over night
and then charge the battery the correct way and polarize the generator (jump
the positive to the generator output lead for a second) in the morning. If
the battery was good to start with it would recover fine.

Jim.........


"mike" wrote in message
...
I bought a pair of electric scooters. They'd "fixed" the charger
and managed to get the batteries charged backwards. Can I discharge them
and charge 'em up forwards? Any special techniques? Fast/slow/
charging?
May be a moot point as I expect the speed controller box is fried too.
mike

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