How many years can a normal car battery last?
2 Answers
Normal car batteries can last between 2 to 4 years. 1. Introduction: Car batteries are divided into maintenance-free batteries and conventional batteries (lead-acid batteries). Most vehicle models currently use maintenance-free batteries, while many Japanese cars use conventional batteries. Conventional batteries have electrodes made of lead and lead oxide, with an electrolyte solution of sulfuric acid, typically lasting about 2 years, making a two-year replacement reasonable. Maintenance-free batteries are relatively more durable, usually requiring replacement every 3 years or so. 2. Precautions: Batteries are most vulnerable to low temperatures, as their capacity in cold environments is significantly lower than at room temperature. A battery that functions normally in warm conditions may suddenly lose power in cold areas. Therefore, before the onset of cold seasons, it's advisable to check the electrolyte level. If necessary, replenish the battery's electrolyte, adjust the specific gravity of the electrolyte, and check its charge status, charging if required.
I've been driving my own car for several years, and the battery usually lasts about three to five years, depending on how you use it. Mine lasted four years before needing replacement, mainly because I often drove short distances to work—just about ten minutes each time—so the battery never got fully charged, which accelerated its aging. Winters were especially troublesome; starting the car at sub-zero temperatures drained the battery quickly. I recommend new car owners avoid leaving their cars parked for too long. Leaving it idle for two weeks can easily deplete the battery. Also, check the battery fluid level regularly—don’t wait until you have trouble starting the car. Nowadays, I make it a habit to take long trips back to my hometown. Charging the battery fully on the road makes it last longer and reduces headaches. Actually, the health of the vehicle’s alternator is crucial—if it fails, it can cause the battery to over-discharge and die prematurely. It’s best to get a full check-up at the repair shop every year.
