Page 35 Chapter 7: Trouble Shooting Steps
7. Trouble Shooting Steps
7.1. 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.
7.2. Preliminary determination steps
1) The system cannot be turned on and the system display is not illuminated. If the
external switch of the system is turned on and the external power supply voltage exceeds
48V, the system still cannot be started and operated, please contact the dealer.
2) The system can be turned on, but the display shows a fault and cannot be charged or
discharged. If the red light is on, it indicates that the system is abnormal. Please check the
following values:
• Temperature: Above 55℃ or under -20℃ , the system could not work in discharging.
Above 55℃ orunder0℃, the system could not work in charging.
• Current: If current is greater than300A, 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.
• High Voltage: If charging voltage above 55.5V, 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.
• Low Voltage: When the battery discharges to 40.5V or less, battery protection will turn
on.
Solution: Charge the battery.
Excluding the four points above, if the faulty is still cannot be located, turn off battery
and repair.
7.3. The battery cannot be charged or discharged
1) Cannot be charged:
Disconnect the power cables, measure voltage on power side, if the voltage is 53~54V restart
the battery, connect the power cable, and try again, if still not work, turn off battery and contact
distributor.
2) Unable to discharge:
Disconnect the power cables and measure voltage on battery side, if it is under 44V please
charge the battery; if voltage is above 48V and still cannot discharge, turn off battery and
contact distributor.
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