How Many Years Does a Car Battery Generally Last?

[GemmaLynn]

Automobile batteries typically have a lifespan of around 2-3 years. With proper use and maintenance, they can last over 4 years without issue. However, improper use and maintenance can lead to premature failure within just a few months. Therefore, correct usage of car batteries is crucial. Common driving habits that can damage the battery include: 1. Using in-car electrical devices for extended periods while the engine is off. The correct practice is to limit continuous radio use to no more than 30 minutes when the engine is off, and it's not recommended to use devices like car DVD players in this state. 2. Using external power devices while the engine is off. High-power external devices such as car vacuum cleaners or portable air pumps should never be used when the vehicle is turned off, as they can quickly drain the battery and affect normal vehicle startup. Such rapid power consumption also significantly harms the battery itself. 3. Forgetting to turn off lights after parking. This can be divided into two categories, one being forgetting to turn off the vehicle's headlights after nighttime parking.