The battery is the most important part of an electric car, and also one of the costliest to replace. So, if you are looking at a used EV, it makes sense to check how much life the battery has left.

You try to turn on your car, and it just won’t start. Maybe the dashboard doesn’t even light up. A likely cause: The 12-volt battery is dead. All cars lose a little battery power when parked. If you ...