Most batteries will be able to reach a complete recharge in less than 24 hrs, so you should ideally disconnect from the charger when this occurs. In spite of constructed-in safeguards, leaving a charger unchecked for prolonged periods could bring about an accidental fire. "On more recent cars, disconnecting the https://www.evernote.com/shard/s417/sh/d2d9d792-2551-2cdd-fb83-596dd14bb48c/BNXKkwUHQRq26o2IjgauEVJ42lbmG1XUpSkQZ3zwHOA6igqfG4PL52QgMg