Advice on Ryobi pack repair. Some cells are reading a voltage of 0.1 to 0.3 millivolts, ie not 1 to 3 volts. I'm wondering if these cells are protected or locked, or
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Ryobi P102 Genuine OEM 18V One+ Lithium Ion Compact Battery for Ryobi Cordless Power Tools - Cordless Tool Battery Packs - Amazon.com