How Do I Know If My 18650 Battery Is Bad. If you want to know for certain which types of protections your battery provides your battery will need to be monitored V A while charging discharging it. How do I know my 18650 is dying.
How do I know my 18650 is dying. 20s not long enough even if it is over a two-year period. The battery gets hot when charging or discharging warmer than normal.
Ive had 5s packs where one cell had completely reversed voltage and was at -30v.
I purchased five on Ebay and one is much larger than the rest all are supposedly the same type. The longest top or end line is the positive terminal of the battery and the shortest line is the negative - terminal of the battery. The battery can hold less than 80 of its original capacity. The battery will lose a charge on the shelf must faster than normal.
