How long will a car battery last in summer?

1 Answers
CharlesRose
07/29/25 10:05pm
Under normal circumstances, a car parked for more than 30 days in summer may run out of battery. Introduction to battery consumption: If the battery remains connected to the car, the vehicle maintains a minimum current (commonly known as "sleep" current) of about 80mA. If there is an anti-theft alarm, it will also consume some power. Generally, about 2-3% of the battery's power is consumed daily, so the battery will be depleted in 30-70 days. Precautions for long-term parking: If a battery is left unused for a long time, it will gradually self-discharge until it is scrapped. Therefore, the car should be started periodically to recharge the battery.
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