General battery fault — may relate to cell voltage anomaly, capacity issue, or other BMS-detected condition. SWITCH OFF IMMEDIATELY if SOC drops below 3%.
Common causes
Battery power cable abnormality (reverse or loose connection)Battery cell voltage genuinely abnormalDeep discharge condition
What to check
STEP 1
Generally clears within 20 minutes — wait and observe. If SOC is below 3%, switch off battery system immediately to prevent deep discharge damage.
STEP 2
If not self-clearing, switch off battery. Check power cable — verify not reversed and firmly connected. If cable is correct, check real-time battery voltage.
Escalate if
Cable correct, voltage acceptable, fault does not self-clear — contact manufacturer
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