If you're installing the XS Power D545 deep-cycle 12-volt battery in your vehicle's engine compartment, you'll need this metal case to protect it from the heat. This rugged fitted steel case shields your battery from damage caused by extreme thermal conditions in the engine block, as well as from debris that may enter the engine compartment accidentally. At just over 2 pounds, this added armor won't weigh your vehicle down. You can also use this case to keep your battery out of harm's way in your trunk or cargo area, too. Warranty: 1 year.