12v/24v/48v Battery problems of the 2016 Subaru Legacy

The contact owns a 2016 Subaru Legacy. The contact stated that the battery has died on multiple occasions. The contact stated that the battery has been replaced several times by the dealer. The computer system has been updated on the vehicle as that was the failure diagnosis however, the failure had continued. The contact stated that when she went to retrieve the vehicle from the dealer the battery was dead. The contact was advised to purchase a battery maintenance charger or disconnecting the battery cables. The contact stated that she purchased the charger and the failure still occurred if the vehicle was not plugged on for 24 hours. The manufacturer was notified and a case was opened. The approximate failure mileage was 80,000.