Scroll the description for more info.

Part 1 converting the battery from acid to alum
https://www.youtube.com/watch?v=Supe1a3LW2U

Part 2 testing the battery again more extensively almost 6 months later http://www.youtube.com/watch?v=5YeRe1fwNYc&feature=youtu.be

Started a drain over time test you can view the first 16 days results here https://www.youtube.com/watch?v=TBx4U74suwI

Final testing 3 months drain with no charge started truck 4 times including the last starting the truck in 10 degree F
http://youtu.be/2SP6jkJMqco

1 cup or 8 oz of alum "aluminum sulfate" in a 1 gallon jug then fill the jug with water
Same for the baking soda 1 cup per gallon. The baking soda mix is used after draining the acid to neutralize any left over acid. You can then after rinsing with that rinse with plain water to get out the baking soda mix. Then you will put in the alum mix filling to just above the plates and then charge.

My first 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.