Recently noticed some increased in cell wire resistance values, powered everything down and put some new washers on all my cells, just steel, nothing exotic, little bit of carbon grease also because that's what the store had, and check connections where noticed a few connections between wire and terminal were just a little loose so gave those a twig up with the crimper and now I'm missing half my cells.
Tried removing washers/grease etc, no change.
I have tested continuity between each balance lead terminal and the pin on the plug into the BMS and it's fine, no issues
Pack voltage is perfect also so all bus bars are fine.
Also I confirm I have voltage readings across each pin on the BMS loom side that goes up with each cell up to the full pack voltage, so pin 0 = 3.3v, pin 1 = 6.6v, pin 3 = 9.9v all the way through.
I know the main pos and neg are good because BMS doesn't power up otherwise.
I have tried factory reset and have made sure cell count is set correctly in the app.
Confirmed pins into the BMS itself are straight, tried applying some gentle pressure both directions also, no change. Wires into the BMS connector appear to be seated correctly and the metal tabs are clearly visible on the right spots on the underside (which is where I was taking readings from).
I have contacted the supplier, but is there anything else I can test? I have bypassed it for the moment which I dont like doing.
Tried removing washers/grease etc, no change.
I have tested continuity between each balance lead terminal and the pin on the plug into the BMS and it's fine, no issues
Pack voltage is perfect also so all bus bars are fine.
Also I confirm I have voltage readings across each pin on the BMS loom side that goes up with each cell up to the full pack voltage, so pin 0 = 3.3v, pin 1 = 6.6v, pin 3 = 9.9v all the way through.
I know the main pos and neg are good because BMS doesn't power up otherwise.
I have tried factory reset and have made sure cell count is set correctly in the app.
Confirmed pins into the BMS itself are straight, tried applying some gentle pressure both directions also, no change. Wires into the BMS connector appear to be seated correctly and the metal tabs are clearly visible on the right spots on the underside (which is where I was taking readings from).
I have contacted the supplier, but is there anything else I can test? I have bypassed it for the moment which I dont like doing.