What methods should we focus on to maximize battery life when using electric vehicles? For example, what are the general recommendations regarding charging habits, temperature management, or the impact of driving behavior? Let's discuss the most effective approaches as a community, based on our experiences.
How do you extend the battery life in electric cars?
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I'm most curious about whether it's beneficial to do a deep discharge occasionally instead of constantly fast charging. For example, how does using the battery down to 20% and then fully discharging it before charging it back to 100% affect its lifespan?
Never bother with aggressive tactics like waiting at a super-fast DC charging station until it's "full," because on my old Leaf, charging from 80% to 100% would nearly fry the battery and eat into its lifespan. The best practice for daily use is to keep it between 20-80%—it meets your daily needs without stressing the cells long-term. Park the car in a warm garage, and in winter, use seat warmers instead of the heater—don’t let it sit in the cold like a gas car "warming up," because batteries lose efficiency in the cold just like we do.
Avoid aggressive acceleration while driving, too—constant full throttle heats up the battery and shortens its life with rapid discharge cycles. I’ve been running it around 70% for a few months now, and the range loss isn’t too bad—only about 5% capacity drop over three years. Not bad at all.