How Often Should Electric Vehicle Batteries Be Replaced?
2 Answers
Electric vehicle batteries are generally replaced every 3-5 years. The maintenance methods for electric vehicle batteries are as follows: Strictly avoid storing batteries in a discharged state: Storing batteries in a discharged state can easily lead to sulfation, where lead sulfate crystals adhere to the battery plates, blocking ion channels and resulting in insufficient charging and reduced battery capacity. The longer the battery remains idle in a discharged state, the more severe the damage. Therefore, when the battery is not in use, it should be recharged once a month to maintain its health. Correctly manage charging time: Generally, battery charging takes about ten hours, and overcharging should be avoided. When planning a trip, arrange for charging along the route in advance to prevent insufficient power during the journey, which can lead to excessive battery discharge and significantly shorten the battery's lifespan.
As an electric vehicle enthusiast, I've been researching battery lifespan issues because replacing it too early is a waste of money, while waiting too long affects travel. Most modern EV batteries can last 8 to 10 years or about 100,000 kilometers before considering replacement, provided the capacity remains above 70%. Daily habits are crucial: avoid fast charging every day or charging in hot weather, as this accelerates battery aging; try to use slow charging and maintain the charge level between 20% and 80% to extend its lifespan. I recommend checking the battery health status via an app every six months. Once the range drops significantly, such as by 30%, it's time to visit a professional shop to assess whether a replacement is needed. Some models come with an 8-year warranty for capacity degradation—don't overlook this cost-saving option. New technologies like solid-state batteries are advancing, potentially offering longer lifespans in the future, but for now, being conservative doesn't hurt.
