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Learn how to recover batteries at home. See that yes! It is possible to repair damaged batteries that do not charge or even use 18650 cells for projects. These lithium batteries are expensive, so don't throw them away. Did you know that it is easy to charge these li-ion batteries using only a bench power supply? No more damaged batteries! Materials: Damaged or damaged battery Soldering iron or if you are going to use projects a bench power supply helps you a lot.