Hi, so my new prismatic battery I built is exhibiting a behaviour where at rest or low discharge current cell 3 is operating at nominal voltage compared to the other cells. However when under load (see second photo) the cell exhibits a voltage drop that is not nominal compared to the other cells. I top balanced the cells to 3.65v while in parallel, then connected in series before discharging to 2.5v before final assembly of the pack.
The positive terminal of cell 3 does appear to get warmer compared to the other cells when under load.
do I have a bad cell? Or maybe going through the top balance again to see if this behaviour gets corrected is the way to go?
toughts?
The positive terminal of cell 3 does appear to get warmer compared to the other cells when under load.
do I have a bad cell? Or maybe going through the top balance again to see if this behaviour gets corrected is the way to go?
toughts?