【ALL IN CHARGE】Compatible with a multitude of alternator types, the DC-DC battery charger offers correct charging for in-vehicle and on-board back up batteries, such as Flooded, STD, Gel, AGM, Sealed, Lithium-iron Phosphate and Lithium-iron batteries, which will enjoy your outdoor off grid camping on RV, van, travel trailer, tow vehicle, truck, pop up trailer, boat, yachts, etc.

【SELF-REGULATED CHARGING MODE】 The DC-DC battery charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Asorption, and Float), to make sure it optimally and automatically charge to 100%.

【INTELLIGENT PROTECTION】 Offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging.

【PROTECT YOUR BATTERIES】 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 it suitable for all conditions. CE, UKCA certificated.

Leaptrend DC to DC Battery Charger 12V 40AThe Leaptrend Altair Series 40A 12V DC-DC Battery Chargers are the most effective way to charge your house batteries from the starter battery. For additional safety, it isolates the input from the output preventing incorrect voltage transmission. Easily install the compact yet sturdy DC-DC battery charger on RVs, commercial vehicles, boats and yachts, and accommodates many types of batteries on the market, including lead-acid batteries, lithium batteries, lithium iron phosphate, etc.Specifications:System Voltage: 12V DCRated Charge Current: 20ARated Max Power: 250WIdle Power Consumption: 0.4AInput Battery Voltage Range: 10V-16V DCOperating Temperature: -20°C to +50°CTemperature Compensation: -3mV/C° /2V