Bench Test Results: Lishen LR2170SD - 9.6A 5000mAh 21700…good performer, has bottom vent

Sorry, I don’t know. Could be the cells if they had aged a lot but could also be another setting? I agree with @ShutterShock, try the battery builders thread as it has a lot more participants who can help out.

Are you sure it’s stopping before 4.15V? Could it be charging to 4.15V and just settling back down to 4.09V? That could indicate aging cells or a high-resistance connection, or connections, somewhere.

That’s most likely the BMS not the cells.

I’ve had one do that too, gets here and then just panic mode.

exactly how mine is

All I could do about it was replace it :man_shrugging: