What type of alternator is this DC to DC on board battery charger compatible with?

This battery charger is designed to work with both conventional and smart alternators.

What types of battery does the charger support?

It's suitable for 12V Lithium, Gel, AGM, and Calcium batteries. This charger enables the batteries to reach a full 100% charge. Additionally, it has the capability to revive lithium batteries that have become discharged to a low voltage.

How do l set the battery since there is no display screen?

To change the battery type, press and hold the SELECT button on the side of the battery charger. The LED lights corresponding to each battery type will illuminate in sequence, indicating the available options.

If both solar power and the engine are available, can we prioritize using solar power to charge the battery?

Our product defaults to DC charging. To prioritize solar charging, simply press the SELECT button on the side.

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Renogy 12V 40A DC to DC Battery Charger with Solar Input MPPT, Compatible with LiFePO4, Gel, Flooded, and Sealed Lead Acid Batteries, Two Charging Options for RV, Car, Camping, Marine

Renogy 12V 40A DC to DC Battery Charger with Solar Input MPPT, Compatible with LiFePO4, Gel, Flooded, and Sealed Lead Acid Batteries, Two Charging Options for RV, Car, Camping, Marine

Product ID: 669883967

Details

Brand
Renogy
Colour
Black
Item weight
1.28 Kilograms
Output voltage
12 Volts (DC)
Product dimensions
4.8D x 19.5W x

⚡40A max charging current

🔋Compatible with 4 battery chemistries

☀️MPPT solar input for max green energy

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Description

🔌 Power your journey with smart, safe, and solar-savvy charging!

COMPREHENSIVE SAFETY SUITE - Built-in protections guard against reverse polarity, over/under voltage, and overheating, ensuring worry-free power management.
SMART 4 STAGE ADAPTIVE CHARGING - Automatically adjusts voltage and current for LiFePO4, Gel, Flooded, and Sealed Lead Acid batteries, maximizing battery lifespan and performance.
RUGGED CERTIFIED READY FOR ADVENTURE - Meets FCC, RoHS, CE, and SAA standards with a 2-year warranty; engineered to thrive in extreme temperatures from desert heat to marine cold.
DUAL CHARGING MODES FOR ULTIMATE FLEXIBILITY - Seamlessly switch between alternator and solar power to keep your batteries optimized on the road or at camp.
INTUITIVE ONE TOUCH OPERATION VISUAL ALERTS - Effortlessly select battery type and monitor charging status with clear LED indicators—no guesswork, just reliable power.

The Renogy 12V 40A DC to DC Battery Charger with MPPT is a versatile, compact charger designed for RVs, cars, boats, and off-grid setups. It intelligently switches between alternator and solar inputs to maximize charging efficiency, supports multiple battery chemistries with adaptive 4-stage charging, and includes comprehensive safety features. Certified for reliability and built to withstand harsh environments, it offers easy operation with LED indicators and a 2-year warranty, making it the ultimate power hub for mobile professionals and adventure seekers.

Specifications

ASIN	B0DF2XXML8
Amperage	40 Amps
Best Sellers Rank	462,415 in Automotive ( See Top 100 in Automotive ) 1,561 in Car Battery Charging Units
Brand Name	Renogy
Colour	Black
Connector Types	Battery Clamps/Ring Terminals
Current Rating	40 Amps
Customer Reviews	4.3 4.3 out of 5 stars (502)
EU Spare Part Availability Duration	2 Years
Input Voltage	12 Volts
Item Dimensions D x W x H	4.8D x 19.5W x 14.9H centimetres
Item Weight	1.28 Kilograms
Manufacturer	Renogy
Manufacturer Part Number	RBC40D1S
Model Number	RBC40D1S
Number of Ports	2
Output Voltage	12 Volts (DC)
Specification Met	FCC, RoHS, CE, SAA
UPC	840315228436
Unit Count	1.0 count

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