this post was submitted on 04 Mar 2026
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That's pretty rare though. Less than 5% of EVs need a battery replacement after 10 years (including those with defective batteries), and modern EV batteries should last at least 20 years, after which they're still estimated to have around 65-70% capacity.
That's not pretty rare, and with lithium batteries it's also a guaranteed capacity loss, even if there's not many power cycles to them. Age is a huge determinate factor in capacity and power loss in lithium batteries. The capacity loss also isn't on a straight line scale. It increases with time. One or two percent a year loss for the first 5 years and then it will get bigger and bigger. Unlike an ice vehicle that's kept in a garage and taken care of that can got well over 200,000 miles almost regardless of age, an EV currently can't do that. They're terrible in the 2nd and third hand market. A 20 year old EV will be useless.