Additionally, if your battery often discharges and the car mostly travels short distances, it's worth using an old trick from the 80s and 90s: storing the battery in a warm place overnight.

If left untreated for too long, these crystals will grow, become harder, and embed deeper into the battery, eventually making it unusable. Motorists who want to rejuvenate a car battery with this ...

Brush away any dirt or gunk from the posts, because you'll need to create as clean and solid connection as you can. First, connect one end of the red clamp to the positive post on the dead battery.

There's a good chance you haven't driven your car in a few weeks—and ... time to go and check yours. If your battery is indeed dead, the fastest way to revive it is a quick jumpstart.