The DC-DC Battery Charger is the most effective way to charge your house batteries from the starter battery. Compatible with many alternator types, the DC-DC battery charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! Featuring a 3-stage battery charger and multiple electronic protections, users can feel confident that their batteries are being charged optimally and automatically. It isolates the input from the output for additional safety, preventing incorrect voltage transmission. Easily install the compact yet sturdy DC-DC battery charger on RVs, commercial vehicles, boats, yachts, and many more applications!

Features of 12V DC DC Battery Charger

Compatible with Multiple Battery Types

Compatible with many alternator types, the DC-DC charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries.

Smart 3-stage Charging

The DC-DC charger will charge your house batteries from the starter battery by 3-stage setting (Bulk, Boost, and Float) to ensure it optimally and automatically sets to 100%.

Various Protections For Ultra Safety

The DC-DC charger isolates the input and output to prevent voltage transmission errors and interfere with house battery charging.

To make it safer, it has multifunctional safety technology, including over-voltage protection, over-temperature protection, and reverse polarity protection.

Protect Your Starter Battery

This Renogy DC-DC battery charger is compatible with traditional and smart alternators. The D+ Ignition cable can identify whether the generator is started to prevent over-discharge of the starting battery and protect the generator. 18-16AWG copper cable recommended.

Protect Your House Battery

The LC wire can automatically adjust the charging current to prevent excessive charging current from damaging the house battery. 18-16AWG copper cable recommended.

Prolong Battery Lifespan

The charger needs to select the charging mode according to the battery voltage. Utilizing the DC-DC temperature sensor, this charger can protect your battery from high or low temperatures by giving -3mV/°C/2V compensation so that the charger recognizes the voltage more accurately and assures stable and constant stability charging to the battery.

Please note that the temperature sensor is not included and cannot be used with Lithium batteries.

Smart APP

the smart app helps the user understand the current working status of the battery charger in real-time.