Battery Replacement; How To Replace A Car Battery?, If you can avoid damaging your car’s electrical system, doing it yourself could save you a few dollars. It’s simple enough to hire experts these days. Attempting a battery swap yourself could render your warranty null and void. Read the terms of your warranty to see what is and is not covered. Your car battery should last anywhere from one to four years, depending on how often you drive. Many motorists avoid doing it themselves and instead have a professional change their dead battery due to the battery’s weight, corrosion, and fire hazards. If your car’s battery dies while you’re driving, you’ll probably need help getting back on the road. For a fee, Budget Direct’s towing service can either jump start your car or install a new battery.