1） Battery cannot turn on, switch on the lights are all no lighting or flashing.
If the battery RESET switch is turned on, the RUN light is flashing, and the external
power supply voltage is 48V or more, the battery still unable to turn on, please contact
distributor.

2）The battery can be turned 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: 

a) Temperature: Above 45℃ or under -5℃, the battery could not work.
Solution: To move battery to the normal operating temperature range between -5℃ and 50℃.

b) Current: If current is greater than 100A, battery protection will turn on. Solution: Check whether current is too large or not, if it is, to change the settings on power supply side. 

c) 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. 

d) Low Voltage: When the battery discharges to 40.0V or less, battery protection will turn on. Solution: Charge the battery for some time, the red light turn off. Excluding the four points above, if the faulty is still cannot be located, turn off power switch of the battery and repair.