OK, last one just finished this morning. I decided a 1A discharge current and min discharge voltage of 3V (but my leads are rather long so it probably stopped at about 3.3V or so. I did not try the limit of 2.75V so my results will be lower than actual.
Still undecided if I will either make a 4S pack, 3S pack with PCB (I have one of those protection PCBs plus a spare, or use three in a largish USB powerbank that I made