The MUS 3300 from CTEK allows owners to outfit all their 12-volt equipment with an easy-access charging port that makes connecting to the charger fast and safe. From motorcycles to snowmobiles, the MUS 3300 can monitor and maintain all common battery types including AGM batteries. With its built-in short-circuit protection, the CTEK MUS 3300 takes the intimidation out of proper battery maintenance.