If you own a classic car, you know the ultimate mood killer is when the battery dies from being idle for too long. Well, here's how to fix that.

Q. I want to replace my 2019 Toyota Avalon’s car battery. By taking the cables off I will lose not just the radio stations but all electronics. Or do I have to use another power source to the cables ...

Your car won't start for the second day in a row. You ask your neighbor for a jump (again) and head off to work — late, of course. You come to the conclusion that it has to be the battery or the ...