Renogy 12V 20A DC-DC Battery Charger

The 20A DC to DC Battery Charger is a highly efficient method of charging house/secondary batteries from the starter battery.

It is compatible with various alternator types and provides proper charging for AGM, Flooded, Gel, and Lithium deep cycle batteries. With a 3-stage battery charger and multiple electronic safeguards, users can trust that their batteries are being charged correctly and automatically. Additionally, it isolates the input and output to prevent incorrect voltage transmission for added safety.

The compact yet durable DC-DC battery charger can easily be installed on RVs, commercial vehicles, boats, yachts, and other applications.

Empower Your Journey on the Go

Maximize charging efficiency on the go with enhanced versatility.

Universal Compatibility

Compatible with Multiple Battery Types

The DC-DC battery charger is fully compatible with a range of battery types including AGM, Flooded, Gel, and Lithium, resulting in optimal performance for all batteries.

Seamless Charging, Ultimate Safety

This charger utilizes advanced safety technology to ensure error-free and secure charging for your house battery.

Protect Your Starter Battery

The Renogy 12V 20A DC-DC Battery Charger is compatible with both traditional and smart alternators. Equipped with a D+ Ignition cable, it detects generator starts and prevents over-discharging of the starting battery, ensuring the safety of your generator. (For optimal performance, consider using an 18-16AWG copper cable. D+ Ignition Cable sold separately.)

Smart Charging Protection

The included LC cable allows for automatic adjustment of charging current, providing protection for the house battery against potential damage from overcharging. (Recommended: 18-16AWG copper cable. LC cable not included.)

Smart 3-Stage Charging

Expertly charge your house batteries from the starter battery with three stages - Bulk, Boost, and Float - to achieve automatic and optimal charging up to 100%.

Prolong Battery Lifespan

This product automatically adjusts charging modes based on battery voltages. Its temperature sensor provides -3mV/°C/2V compensation, guaranteeing the most efficient charging even in changing temperatures. Please note that the lithium battery must have a built-in BMS for optimal functionality; an external temperature sensor is not required.

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The Renogy Difference

Renogy is dedicated to simplifying the process of going solar. We provide expert guidance, allowing you to quickly build and expand your system for maximum efficiency and range.