How to repair a broken dead rechargeable battery

This guide explains how to recover a dead battery. It could be used with all kind of batteries. Don't waste your money throwing to the trash (i hope recycling trash) your rechargeable batteries ! Recover them using this tip!. This explanation could be useful to recover your Roomba battery, your netbook battery, laptop battery, solar powered lights battery and a lot of batterys that we could find in a los of electric devices.