Low-Voltage (12V) Battery

LV Battery · Low-Voltage (12V) Battery · Battery & Energy Storage

The auxiliary 12 V battery in an EV that powers control modules, lights and accessories. Charged from the HV pack via the DC-DC converter while the car is awake. A failed 12 V battery is the most common cause of "car won't wake up" complaints.

See also

DC-DC DC-DC Converter HV Battery High-Voltage Battery

Related Fault Codes

No related fault codes found.

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