Just recently got my car back from dealer fixing a leak, they let the battery run completely dead. It will no longer hold a charge, be it from a 2hr drive or having it sit hooked up to a charger for 20hrs, I am lucky if It holds long enough for me to get to the gym work out and have it start 1.5hrs later. Car only has 386xxkms so around 24000 miles, should the battery be covered under bumper to bumper?