Changing your vehicle's car battery, yourself, is a simple task that will save you money. However, ensure you disconnect this battery terminal first.

A: If an alternator is bad, it’s possible that it could either undercharge the battery and allow it to die, or overcharge the battery and ruin it. Q: How do you clean battery terminals?

A dead battery means that, for all intents and purposes, your car is dead, too. (A best-case scenario is you have a portable charger with you, but if not, here's what you can do.) ...

Another battery terminal type common in the U.S., especially on some General Motors (GM) and GMC cars and trucks, is the side-post terminal.