Bafang · Temperature
45 Bafang error code 45
Battery temperature too high
Per manufacturer documentation
Note
Meaning may depend on model, display and firmware – verify with the manual of the exact type.
Possible causes
General, component-based causes – not a manufacturer-specific statement.
- Overheating (high load, climb, hot ambient)
- Temperature sensor or cable fault
- Too cold ambient (battery)
Safe test steps
- Does the fault clear after cooling/warming?
- Infrared thermometer on the component.
Workshop reference values
- The permitted temperature limit is manufacturer-specific – use the official value.
Repair approach
- Reduce load, cool down; persistent fault: check sensor/component.
Tools needed
- Infrared thermometer
- Digital multimeter (CAT III, fused inputs)
Safety
- Never bypass a temperature sensor.
This information does not replace manufacturer service documentation. Work on batteries and high-voltage parts only with the appropriate expertise.
Related fault codes
10Motor internal temperature reached its protection value11Motor internal temperature sensor fault13Battery internal temperature sensor fault14Controller internal temperature reached its protection value15Controller internal temperature sensor fault46Battery temperature too low04Throttle does not return to zero05Throttle fault