Third, if you were able to charge them, check their internal resistance. It cannot be the "17-22 meg" that you said. Did you mis-type, and it's really 17-22 milli-ohms (0.017 to 0.022 ohms)? How did you measure it?
using my icharger 306b it says 18m n omega sysmbol.
A 30 amphour cell good for 10C would have to deliver 300 amps.
10 c this is burst current I hope they can do 2 or 3 c steady .. can you show us the math how this nmc cell could not do this ? To do
this, it can't have an internal resistance more than about 5 milliohms (0.005 ohms). So even if yours are 17-22 milliohms, they are bad.
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