Where is the BMW Battery Located?

[KylieLee]

BMW batteries are located under the trunk. The battery is installed in the trunk primarily so that in the event of a major collision, the sensor will detect it and automatically cut off the power supply. The functions of the battery are: 1. To power the engine starting system, ignition system, and vehicle electrical supply; 2. To power the vehicle's electrical equipment when the engine is stopped or at low idle; 3. To mitigate impact voltage in the electrical system and protect the vehicle's electronic equipment. Battery maintenance methods include: 1. Avoid overusing the battery; 2. Regularly clean the battery's positive and negative terminals; 3. Periodically check the vent holes on non-maintenance-free battery covers to prevent blockages; 4. Avoid the battery water level being too low; 5. When parking for an extended period, start the vehicle once a week to charge the battery.