A hybrid has two batteries, and the bigger one matters more than most drivers realize. Here's what can happen when it fails, plus signs to watch for.

Next to buying new tires and the many maintenance items required to keep a car running, replacing the 12V battery is one of the costliest. Unlike a basic oil change that costs $35 for regular mineral ...

Your car's battery might not be something you think about daily, but it plays a huge role in ensuring everything runs smoothly. Without it, you're not going anywhere. It powers almost everything in ...