fl_dutch
New Member
Living in Germany i ordered 8 Grade B EVE LF280K V3 cells from NKON in the Netherlands. One of the delivered cells show a weird discharge behavior, being tested with my EBC-A40L tester. Clamps have already been replaced by ring lugs.
This is the curve i got (just as a screener):
Okay, maybe it would have been some error in the tester or whatever. All other cells tested with a normal behavior. This cell was tested no 5 out 8 - performed 3 more cell tests without this behavior and then did a retest of this cell (internal cell number is 021):
Has anyone come across this behavior? NKON never saw something like this they claimed - me neither . Some maybe the knowledge in this forum is the place to be. Any guess if this cell may be safe to use? In my live LiFePO4 batteries i normally never go below 2.9v of cell voltage.
Yes, i bought grade b cells - capacity of all those cells is around 300Ah+, but that is not the only quality aspect of LiFePO4 cells.
Any comments and hints are highly welcome.
This is the curve i got (just as a screener):
Okay, maybe it would have been some error in the tester or whatever. All other cells tested with a normal behavior. This cell was tested no 5 out 8 - performed 3 more cell tests without this behavior and then did a retest of this cell (internal cell number is 021):
Has anyone come across this behavior? NKON never saw something like this they claimed - me neither . Some maybe the knowledge in this forum is the place to be. Any guess if this cell may be safe to use? In my live LiFePO4 batteries i normally never go below 2.9v of cell voltage.
Yes, i bought grade b cells - capacity of all those cells is around 300Ah+, but that is not the only quality aspect of LiFePO4 cells.
Any comments and hints are highly welcome.