24 volt dc to 24 volt dc 10 amp split charger. Designed to charge and maintain a separate 24 volt battery from a 24 volt dc system. It has a three stage micro processor controlled charging system and uses voltage sensing for automatic cut in and drop out of charge from the 24 volt system, so will not charge the separate 24 volt battery until the 24 volt battery on the main vehicle is charged or being charged.