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The only way to really test a cell, is a full discharge, 1930mAhr = 950mA for 2 hours - it's a fair bet your " same as the factory " cells won't do this
( whatever PoC you are testing your cells on to get the 1930mAHr result - it is most likely not doing a full discharge - we have seen some Chinese sourced " testers" that are wildly optimistic, i.e just plain wrong )
which is why you are seeing poor performance. Oh - were the cells cheap ?
the cell was actually taken out of a faulty BMS pack. which was a young action that produced a tester. Of the old cells, 2 were only 1700 mAhWho said it was cheap? By the way, the cell is the same as the one used in the factory, only much younger.
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I drained the cells to 2.97v. I put it back in its place and charged it with its own charger via its bms. The test will be today. 4.15v charging stopped.
no . all 7. for their almost identical capacities... I agree with easy peasy. As the testes capacity was reported with quite a confidence, I wasn't questioning the stated 1930 mAh.
So you have replaced only two cells?