9 Trouble Shooting
Table 9-1 FAQ
Please refer to the table below to deal with common faults
：
Phenomenon
Possible Cause
Solution
The indicator
does not flash
The power cable of the battery pack is not
properly connected.
Reconnect the power cable of the battery pack
The power switch is off.
Turn on the power switch.
The BMS is in a sleep state.
Charge the battery pack
BMS is damaged.
Replace BMS.
Unable to
discharge
The terminal of the battery pack is
damaged.
Replace the battery pack wiring terminals.
BMS communication failure.
Reconnect the communication line between the BMS
and the battery pack. If the communication cable is
damaged, replace the communication cable.
The power switch is off.
Turn on the power switch.
Unable to
charge
The charger is malfunctioning.
Replace the charger.
The terminal of the battery pack is
damaged.
Replace the battery pack wiring terminals.
BMS communication failure.
Reconnect the communication line between the BMS
and the battery pack. If the communication cable is
damaged, replace the communication cable.
The power switch is off.
Turn on the power switch.
Communication
fail
The power switch is off.
Turn on the power switch.
The BMS is in a sleep status.
Charge the battery pack
The communication cable is damage.
Replace the network cable.
Inaccurate
voltage display
The voltage sampling line is damaged.
Replace the voltage sampling cable.
BMS is damaged.
Replace BMS.
Low capacity
The battery pack has not been maintained
for a long time.
Use an equalizer to maintain the battery pack.
The single battery is damaged.
Replace the damaged single battery.
Inaccurate voltage sampling.
Replace the electrical sampling line or replace the BMS.
Low cell
voltage
The battery pack has not been maintained
for a long time.
Use an equalizer to maintain the battery pack.
The single battery is damaged.
Inaccurate voltage sampling.
Replace the damaged single battery.
Replace the electrical sampling line or replace the BMS.
