In order to have a proper working vehicle, your battery needs to be in good working order as well. Having clean connections and a fully charged battery is a benefit for you as well as your vehicle. Without the battery, power cannot be supplied to the areas of your vehicle that need it in order to run properly. If the battery is dead, your vehicle will not even start. There are some signs to be on the lookout for to tell when your battery is starting to wear out. If you vehicle is getting harder and slower to start, it may be a sign that you will need a new battery soon. Testing a battery is a simple procedure that can be done during your regularly scheduled maintenance inspection.