Do car batteries go bad if not used?
Do car batteries go bad if not used? There are both chemical and physical changes that occur as a battery goes flat which can destroy the battery. So leaving a starter battery unused and without charging will usually destroy it in a year or so. AGM deep cycle batteries cope better if left without charging but still not good. Why does my Ford Fusion battery keep going dead? 2014 Ford Fusion intermittently goes dead after sitting for a day or more. The fist dealership found nothing wrong and it didn't happen again for several months. A different dealership replaced the...