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product manual
UE-48Li3600V2
5. Trouble Shooting
5.1 Problem determination based on:
1) Whether the battery can be turned on or not.
2) If battery is turned on, check the red light is off, flashing or lighting.
3) If the red light is off, check whether the battery can be charged/discharged or not.
Possible conditions
1) Battery cannot turn on, switch ON and press the red SW the lights are all no lighting or flashing.
a) Capacity too low, or module over discharged.
Solution: use a charge or inverter to provide 48-53.5V voltage. If battery can start, then keep charge the
module and use monitor tools to check the battery log.
If battery terminal voltage is ≤ 45Vdc, please use ≤ 0.05C to slowly charge the module to avoid affect to SOH.
If battery terminal voltage is
>
45Vdc, it can use ≤ 0.5C to charge.
If battery cannot start, turn off battery and repair.
2) The battery can turn on, but red light is lighting, and cannot charge or discharge. If the red light is lighting, that
means system is abnormal, please check values as following
b) Temperature: Above 60 or under -10°C, the battery could not work.
Solution: to move battery to the normal operating temperature range between 0°C and 50°C.
c) Current: If current exceeds 90A, battery protection will turn on.
Solution: Check whether current is too large or not, if it is, change the settings on power supply side.
d) High Voltage: If charging voltage above 54V, battery protection will turn on.
Solution: Check whether voltage is too high or not, if it is, to change the settings on power supply side.
And discharge the module.
e) Low Voltage: When the battery discharges to 44.5V or less, battery protection will turn on.
Solution: Charge the battery till the red light turns off.
f) Cell voltage high. The module voltage is lower than 54V, SOC LED does not all on. When discharge the
module protection disappear. Solution: keep charge the module by 53-54V or keep the system cycle.
The BMS can balance the cell during cycling.
Each battery pile can configure maximum 16pcs UE-48LI2400V2/UE-48LI3600V2.
