This advanced marine waterproof battery charger can be mounted anywhere and is designed to charge 36V Monster Marine Lithium batteries! It has our built in smart monitoring and maintaining of 36v lithium batteries. Size Dimensions8.75" L x 4.75" W x 3.25" H Weight: 7lbs Power Specs: AC Power Input 100-120v Output: 1x43-44v dc @10A Coated customized aluminum housing Maintenance mode for 36v Lithium Batteries