Cool DIY Video : How to make a bad 12 volt battery good again for under 5 dollars

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    This Video shows an attempt at taking a bad 12 volt battery in this case a deep cycle boat battery and replacing the acid with alum water “food grade aluminum sulfate” so that it will take a charge, worked so well I was able to start my truck with it after just charging it overnight with the alum water in it. Before replacing the acid in the battery it would not even hold 3 volts.

    Watch the bad battery recharge DIY video