CC-ID-306moderate severityBody
Battery Charge Low
on 2021 BMW i3 Range Extender · RWD
What this code means
The battery state of charge has dropped to a low level that may affect vehicle operation. This is raised by the power management/battery monitoring system.
Symptoms
- Low battery warning
- Electrical loads shut down
- Hard or no start
Common causes
- Excessive standby drain
- Charging system underperforming
- Frequent short trips
- Aging battery
Diagnostic steps
- Check battery state of charge
- Test alternator output
- Measure parasitic drain
- Charge and retest battery
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Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0009
Rear Center Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment