One of my older Ryobi battery packs would not charge anymore. The voltage was almost 0. I took it apart to see what I could do. I was able to revive it!
If it was bad, you could try to re-cell it... but now Vanon makes knock-off battery packs ( [ Ссылка ] ) that are much less expensive than the official Ryobi batteries ( [ Ссылка ] )
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