[Compatible Multiple Battery Types] Compatible with a multitude of alternator types and solar panel, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries. [Smart 3-stage Charging] The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charge to 100%. [Various Protections For Ultra Safety] Offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. Renogy dc to dc battery charger also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging. [Protect Your Starter Battery] The DC-DC battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator. [Reliable Quality] The compact and robust design makes dc to dc charger suitable for all conditions. CE certification. Description: The DCC12 Series battery chargers are the most effective way to charge your auxiliary or house batteries from the alternator/starter battery. Compatible with a multitude of alternator types, the DCC12 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. For added safety to personnel, the DCC12 isolates the input from the output preventing incorrect voltage transmission. Easily install the compact yet sturdy DC1212 on RV’s, commercial vehicles, boats, yachts and many more applications! Specifications: Nominal Voltage:12V Rated Charge Current:40A Output:500W Input Voltage Range:8V-16V Equalization Voltage:N/A Float Voltage:13.2-13.8v Boost Voltage:14.1-14.7v Operating Temperature:-20°C to +50°C Dimensions:10.28 x 6.89 x 2.68in Weight:4.14lbs