- EV batteries rarely fail, but when they do it doesn't have to kill the car.
- This new video shows that not only can it be cost-effective to replace a battery, but in some cars you can actually upgrade to a better battery for not much more.
- In the end, a battery replacement seems about as complicated and expensive as an engine replacement. But it seems easier to make a 250,000-mile battery than a 250,000-mile engine.
