Renogy 40A DC-DC Battery Charger with MPPT

Renogy 12V 40A DC to DC Battery Charger with MPPT

This sleek, versatile charger keeps you powered wherever you go. It switches seamlessly from DC input while driving to solar charging when parked. With a simple press of the SELECT button, you can easily set solar priority mode for maximum efficiency.

Effortlessly switch between solar and DC inputs to keep your battery charged efficiently, all while enjoying the reliability and superior performance you expect.

Seamlessly Mode Switch

The system automatically switches to the alternate charging mode when the input voltage in the primary mode drops below the default threshold, ensuring continuous, efficient charging.

DC Priority

Solar Priority

Understand the Charging Logic Behind Each Model

The 30A and 50A models support dual input from solar and alternator simultaneously, offering maximum flexibility and faster charging. The 40A model intelligently switches between inputs based on availability—the most cost-effective solution on the road.

Get to Know the Key Points

Select the most suitable charger tailored to your system requirements.

Stay Charged on the Move

Stay Charged on the Drive

Stay Charged on the Water

Multiple Safety Certifications

Achieving peak standards for reliable off-grid power

Wiring Diagram

Effortless installation with pre-installed wires and clear labels

Get the Proper Specs for Your System

For longer cable runs, use a larger gauge to minimize voltage drop, reduce power loss, and safeguard your batteries, ensuring efficient and reliable power transfer.