The Renogy DCC12 Series battery chargers are the most effective way to charge your Leisure Battery or batteries from the alternator/starter battery. Compatible with a multitude of alternator types, the RenogyDCC12 offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Featuring a 3-stage battery charger and multiple electronic protections, owners can feel confident that their batteries are being charged optimally and automatically. This offers a much better alternative to inconsistent and poor output split relays whilst off grid and on the move.  Please see product datasheet for more information   For added safety to personnel, the Renogy DCC12 isolates the input from the output preventing incorrect voltage transmission. Easily install the compact yet sturdy Renogy DC1212 on Campers, commercial vehicles, boats, yachts and many more applications! Multi-Chemistry Battery Types: AGM, Flooded, Gel, and Lithium Smart Protection Features: Over-voltage safe