Then remove the negative terminal clamp from the battery ... And extra protection is never a bad thing. Check the battery fluid level if your car has a non-maintenance-free battery.

Your car's battery terminals are designed to work with the ... where the positive post is larger than the negative. However, the size difference and the taper are so slight that it's easily ...

It's always a good idea to have a jump starter on hand, but if you don't, you could try a DeWalt battery in an emergency. Here's how one YouTuber did it.