So since there was no interest, I just started to top balance the new EVE LF280K cells together with my original 272AH Lishen cells. Does anyone have any concerns with that? They will be going into rhe Mason kit, and the EVE cells are actually a better fit.
You can see from the pics that the EVE terminals are 4.25 inches vs the Lishen 3.5 inches between positive and negative. I am hoping the cells will average out between each other under load.
One interesting fact is the Lishen internal resistance is showing at .15 milliohms, and the EVE are showing .001! I think the EVE cells may actually be Grade A.