At Sargeant Service Center in St Augustine, we know how annoying a dead battery can be. Here’s some information on the subject, that will hopefully help you understand your battery issues a little better. If your battery dies after your car, truck, or SUV sits for a few hours, the battery itself isn’t necessarily the problem. While having the battery tested is a good place to start, many people mistakenly make a bad battery diagnosis, when actually something in the electrical system is to blame.