12-volt Battery In Electric Cars
Electric cars still have a 12-volt battery for control units, locks and lights.
What is 12-volt Battery In Electric Cars?
It powers the car before HV switches on. The DC-DC converter charges it. It can be lead-acid or lithium. If the 12-volt battery is flat, the car cannot switch on its high-voltage system, even if the main battery is full. Some cars keep the 12-volt battery charged from the main battery while parked. Jump-starting is possible via the 12-volt terminals following the manual.
How it works
The 12V system wakes the car.
Why it matters for your car
A flat 12V battery stops the car. Long standing can drain it.
Other terms
- Battery Thermal Management
- Brake Fluid
- Caravan Mover (Motor Mover)
- Child Seat Support Leg
- Common Rail Injection
- Crossply Tyre (Bias-Ply Tyre)
- Door Hinge
- Driving In Fog
- Dynamo (DC Generator)
- Engine Stalling
- Fuel Cap
- GAP Insurance
- Gas Strut (Gas Spring)
- Range Anxiety
- Relay
- Remanufactured Parts
- Rod Knock (Big-end Knock)
- Six-Volt Electrical System
- Toe (Alignment)
- Tyre Patch Repair