Hi
I have a battery with internal BMS which seems good but has no BT function.
I intend to add another BMS externally (JBD smart) in series with the B- of the battery. The balance wires will be soldered to the original cables. So both BMS will see same cell voltages.
I have 2 concerns :
cheers
I have a battery with internal BMS which seems good but has no BT function.
I intend to add another BMS externally (JBD smart) in series with the B- of the battery. The balance wires will be soldered to the original cables. So both BMS will see same cell voltages.
I have 2 concerns :
- does the 2 BMS interfere in voltage sensing (same balance leads).
- I read in BMS manuals that B- should be connected before Balance cables. So what will happen if the internal BMS disconnects ? BMS 2 (the external) will have balance leads (BC0 to BC16) without B- connection, will this blow the BMS ?
cheers