What is the lifespan of a Tesla battery?
2 Answers
For Tesla batteries, their lifespan is longer than that of typical electric vehicles, with official data indicating 450,000 to 600,000 kilometers. Below are the relevant details: 1. Tesla uses 18650 batteries, and the lifespan of 18650 batteries is calculated based on charge-discharge cycles, approximately 1,000 cycles. If charged every 2 days, this translates to about 2,000 days, or roughly 5 years before needing a battery replacement. The actual usage of the vehicle will determine the exact timing. 2. The cost of replacing a Tesla battery is relatively high, with a full battery replacement typically costing over 100,000 RMB. However, Tesla batteries are not that fragile. According to domestic policies, electric vehicles must provide an 8-year or 150,000-kilometer warranty for the battery. During the warranty period, battery degradation should not exceed 30%.
I've been driving a Tesla Model 3 for five years myself, covering nearly 120,000 kilometers. According to the official statement, the battery is guaranteed for 8 years or 160,000-240,000 kilometers (varies by model). In reality, mainstream ternary lithium batteries can endure about 1,500 full charge-discharge cycles, while lithium iron phosphate batteries are even more durable. A friend of mine who drives for ride-hailing services has clocked 200,000 kilometers in three years, with the battery capacity dropping only about 10%. The key is to avoid frequently depleting the battery completely and to maintain the charge level between 50%-80% when parked for extended periods. Also, in summer, try not to leave the car exposed to the sun for too long, as excessive heat isn't good for the battery.
