
The Tesla 12V auxiliary battery is located under the cover near the windshield in the front trunk. Functions of the battery: It supplies power to the engine. When the vehicle is preparing to start, the battery discharges to provide electricity to the starter motor, which then drives the flywheel and crankshaft to start the vehicle. When the engine power supply is insufficient or not started, it provides power to in-car electrical appliances such as the audio system and lighting system. Once the engine begins normal power supply, the battery collects and stores electrical energy for future use. Maintenance methods for car batteries: Turn off all lights before shutting down the engine; Avoid leaving the vehicle parked for extended periods. The battery installed in the vehicle will self-discharge over time, so it's best to drive the car at least once a week, preferably for a journey of 20 minutes or more, to allow the battery to charge while driving. The operation of car windows and sunroofs relies on battery power, so it's advisable to close all windows before shutting down the engine rather than after, or even using the long-press lock button method to close windows after leaving the vehicle.


