What's the lifespan of EV batteries in terms of years or kilometers? How much do factors like temperature and usage patterns affect them? Does anyone have general knowledge on this topic and what factors should we pay attention to?
How long do electric vehicle batteries last?
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Battery lifespan typically ranges between 8-15 years, retaining around 80% capacity at approximately 150,000–200,000 km. High temperatures and frequent fast charging reduce battery life, so try to charge slowly and avoid using the battery in cold conditions.
I also drive a Tesla Model 3, bro, and honestly, I've obsessed over the battery situation. Generally speaking, non-LFP batteries (like NCA) lose around 20% capacity around 150,000–200,000 km. My car hit 150,000 km with a 15% loss, which I think is normal. Temperature plays a huge role too—parking in environments above 30°C constantly really takes a toll on the battery.
But the real key, bro, is not to fully charge! I always keep it around 80%, which helps both performance and longevity. Constantly fast-charging with DC also shortens the battery life big time, so I try to charge at home with AC Type 2 for 6–8 hours whenever possible. It seems like usage habits are the biggest factor here, so we gotta be careful.