Generally speaking, the normal design service life of the battery is about 3 years, but the battery of some cars fails after only 2 years of use, and the battery life of some cars reaches 5 years. The most important factor is temperature, especially low temperature. The life of a vehicle battery is easily affected by temperature, especially when the vehicle is started in a low temperature environment. The impact on the battery life of the vehicle is very large, so the battery life of a vehicle with a garage is longer than that of a vehicle without a garage.
In addition, the damage to the battery caused by over-discharge is also very great. Therefore, when using the high-power electrical equipment of the vehicle, such as heaters and audio equipment, it is best to start the vehicle and use the vehicle to ventilate. Ambient idle speed so that the alternator can continuously charge the battery to prevent it from over-discharging. In addition, when locking the car and leaving the car, be sure to turn off all electrical equipment in the car, especially remember to turn off the headlights, otherwise the damage to the battery will be very great. And the vehicle may not be able to start because the battery power is too low.