ohzee wrote:and used up 17ah out of my pack.
I had one cell near the middle of my pack which was noticeably lower then the others.
glad I covered my battery with plastic wrap before any tape.
At 30a/1.5c, I bet sag was minimal, a great quality of these cells.
I use a standard 80%DOD on these cells, so I would have stopped the test at 16ah - at 17ah you are into the knee of the discharge curve. What were the voltages of the good cells vs inferior cell at the end of discharge? Did you confirm voltages on the cells before your test, to make sure the BMS had accurately balanced them?
I use quality blue painters tape for the same reason you used plastic wrap - lasts for years, comes off in seconds.