03-05-13, 11:31 AM
That battery is certainly junk!
As for -1V from the charger... maybe it's a clever one that detects whether a battery is connected. You might be able to fool it into producing a normal output by connecting a 12V bulb as a load (a spare tail light or indicator light should do).
As for -1V from the charger... maybe it's a clever one that detects whether a battery is connected. You might be able to fool it into producing a normal output by connecting a 12V bulb as a load (a spare tail light or indicator light should do).