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New BMS JK

RogerW

New Member
Joined
Sep 20, 2022
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Hello everyone. I have 2 jbd 200amp bms. One didn't work all well from the beginning. But lately after batteries reach 100% that particular bms shuts down. The cell don't balance well. But there is one cell #15 that is always lower. So I just bought a new JK BMS. Just installed it today. But all parameters are different and than how I got in JBD. I've been using the overkill app. Yet overkill don't seem to pick up jk Bluetooth. I will attach picture of how unbalanced the cells were. And with this new bms. The same cell seems to be lower in V.
 

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Hello everyone. I have 2 jbd 200amp bms. One didn't work all well from the beginning. But lately after batteries reach 100% that particular bms shuts down. The cell don't balance well. But there is one cell #15 that is always lower. So I just bought a new JK BMS. Just installed it today. But all parameters are different and than how I got in JBD. I've been using the overkill app. Yet overkill don't seem to pick up jk Bluetooth. I will attach picture of how unbalanced the cells were. And with this new bms. The same cell seems to be lower in V.
I have sets of 16 cells. 280 AH
 
The 2A balancer will eventually even out all the cells but it will take some time. I would recommend Float charging at 54.4V for 24 hours and then check the difference in cell voltages.

Recommend to reset some of the value in the set up menu.

Start Balance Voltage = 3.40V

Under Temp Protection value = no lower than 0 deg C.
Over Temp Protection value = no higher than 40C
Under and Over Temp recovery 2-3 degrees higher and lower than Protection Values.
 
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