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Cell voltage deviation

cdouble

Active Member
Join
Dec 31, 2018
Messages
39
Age
63
I have 3 batteries for my spark. Two of them are about 3 months old and have roughly 10 flights each, the third is brand new. I always store them at room temperature charged to about 70% capacity.

Every one of them reports multiple cases (5-6 episodes per flight, each episode is 5-15 successive readings) of cell voltage deviation greater than 0.05v. Flying conditions have been low-mid 30s but I've kept spare batteries in my pants pocket so they don't get too cold before use.

Everything I've read so far says this is a dangerous condition and should be exceedingly rare. The chances that 3 of 3 batteries would be defective seems remote. Is this really a dangerous condition? Should I look for anything else in the logs to help diagnose root cause?

Thanks,
Chris
 
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