How Long Do Electric Vehicle Batteries Last?
2 Answers
Currently, the main types of batteries used in electric vehicles are: ternary lithium batteries, lithium iron phosphate batteries, and nickel-metal hydride batteries. Among these, nickel-metal hydride batteries are the most stable, lithium iron phosphate batteries are the safest, and ternary lithium batteries have the highest energy capacity. Below is a detailed introduction: Ternary Lithium Batteries: They excel in collaboration, offering the highest energy capacity for the same weight. However, their tightly packed components generate higher temperatures, so ternary lithium batteries have stringent cooling requirements. For safety, each battery cell must be equipped with a protective device. Lithium Iron Phosphate Batteries: These are favored by most automakers. Although they don't match the energy capacity of ternary lithium batteries for the same weight, they have excellent thermal stability, are less prone to overheating, and require lower-cost cooling components. Additionally, they offer advantages such as high energy density, compact size, long battery life, and superior safety.
As an average EV user with several years of experience, battery lifespan typically lasts 8 to 15 years, with daily habits being the key. I always try to keep charging between 20% and 80% to avoid deep discharge; weather impacts significantly – parking in shade during summer or using pre-heating in winter helps prevent degradation. Warranty is a lifesaver, with most manufacturers covering 8 years or 100,000 miles, saving me substantial costs. I regularly check battery health via the car's app, showing slower capacity decline; real-world testing indicates batteries generally last 100,000 to 200,000 miles before replacement. This has cultivated my habit of gentle driving – avoiding aggressive acceleration to extend usage cycles. Though the initial investment is higher, the long-term cost is significantly lower than gas vehicles when amortized.
