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Harvesting Free 18650 Li-Ion Cells From Laptop Batteries
In this video I am salvaging some free 18650 Lithium-Ion cells from old laptop battery packs. Sometimes you get a pack with almost new cells, sometimes the cells are partly worn, sometimes there's one or few totally dead cells and the other ones are good, like new. The cells are often discharged to nearly 0V and this leads to a damage that causes a high self discharge rate, but usually you can recover them by making several charge - discharge cycles or by trickle-charging. Warning: Li-Ion cells may explode, catch fire or cause burns!
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