---
product_id: 669883967
title: "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"
brand: "renogy"
price: "₱34592"
currency: PHP
in_stock: true
reviews_count: 5
category: "Renogy"
url: https://www.desertcart.ph/products/669883967-12v-40a-dc-to-dc-battery-charger-with-solar-input
store_origin: PH
region: Philippines
---

# 40A max charging current Compatible with 4 battery chemistries MPPT solar input for max solar efficiency 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

**Brand:** renogy
**Price:** ₱34592
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your adventures smarter, safer, and greener with Renogy’s 40A DC-DC charger!

## Quick Answers

- **What is this?** 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 by renogy
- **How much does it cost?** ₱34592 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/669883967-12v-40a-dc-to-dc-battery-charger-with-solar-input)

## Best For

- renogy enthusiasts

## Why This Product

- Trusted renogy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart 4-Stage Adaptive Charging:** Tailored Bulk, Absorption, Float, and Equalization stages dynamically adjust to your battery type for peak performance and longevity.
- • **Comprehensive Multi-Layer Protection:** Built-in safeguards against reverse polarity, over/under voltage, and temperature extremes ensure worry-free, reliable power management.
- • **Dual Charging Modes for Ultimate Flexibility:** Seamlessly switch between DC input and solar priority to keep your batteries optimized on the move or at rest.
- • **Intuitive One-Touch Operation & Visual Alerts:** Effortless battery type selection and LED status indicators keep you informed and in control without the tech headache.
- • **Rugged Certified Reliability with Quick Install:** Meets FCC, RoHS, CE, and SAA standards; engineered for harsh environments with color-coded cables for a fast 15-minute setup.

## Overview

The Renogy 12V 40A DC to DC Battery Charger with MPPT is a versatile, compact power solution designed for RVs, cars, boats, and off-grid setups. It features dual charging modes that automatically switch between DC input and solar power, maximizing efficiency. Compatible with LiFePO4, Gel, Flooded, and Sealed Lead Acid batteries, it uses adaptive 4-stage charging logic to optimize battery health. Comprehensive protections guard against electrical faults and temperature extremes, while intuitive controls and LED indicators simplify operation. Certified to global safety standards and built for rugged environments, this charger ensures reliable, hassle-free power management wherever your journey takes you.

## Description

Introducing the Renogy 12V 40A DC to DC Battery Charger with MPPT, a compact and versatile charger designed to keep you powered on the go. Choose your charging mode based on your specific needs. The charger defaults to DC input priority mode. While driving, it uses the starter battery to charge your system. When parked at campgrounds, it automatically switches to solar charging to utilize free, green solar energy. You can also change the default charging mode to solar priority by simply pressing the SELECT button. The intuitive indicator lights and button provide clear status and battery settings, ensuring easy and efficient power management. With comprehensive safety protections, this charger safeguards both your starter battery and house battery.

Review: Other than a issue with a TAX invoice as in they do not supply one a major pain In Australia if you want to claim the unit as a Business expense as is what i wanted to do. The unit is by far the best one i have tested so far. It does not just charge and cut off it also supplies power to the connected devices so as not to run the battery down when the battery is full and the sun is still shinning. So if you don't need to right this off TAX wise i would recommend it. So 5 stars for the Item 1 start for the seller.
Review: I rarely leave reviews and in most cases only when I am really annoyed by a product. But this unit is really great at a very resonable price! Works very well, is compact, and has many great features that only a combined dual (solar and alternator) charger can provide. For example charging my starter battery when the solar battery is full. I think I had a small parasitic drain on the van which caused the battery to be empty after a few weeks of not driving. With the renogy charger that is no longer a problem. And of course the main function to support dual charging is also great. I specifically used the smaller version (30A) to limit stress on the alternator . That is probably the only missing feature I can think of: configure the max draw from the alternator in the app. But with the 30A version that is not really a problem. And I anyway only have 400W of solar, so 30A is fine.

## Features

- 𝐓𝐰𝐨 𝐂𝐡𝐚𝐫𝐠𝐢𝐧𝐠 𝐎𝐩𝐭𝐢𝐨𝐧𝐬- Renogy 40A DC-DC MPPT battery charger offers two versatile charging modes to maximize efficiency. The charger defaults to DC input priority mode. Battery chargers will automatically switch to the alternate charging mode when the input voltage in the primary mode falls below the default voltage. This DC-DC charger ensures 𝐦𝐚𝐱𝐢𝐦𝐮𝐦 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 in charging your battery whether you're on the road or parked
- 𝐔𝐥𝐭𝐢𝐦𝐚𝐭𝐞 𝐑𝐕 𝐏𝐨𝐰𝐞𝐫 𝐇𝐮𝐛: Renogy 40A DC-DC MPPT Charger + Solar/Alternator Integration,12v Battery Charger compatibility with LiFePO4, Gel, Flooded, and Sealed Lead Acid batteries. Adaptive 𝟒-𝐬𝐭𝐚𝐠𝐞 charging logic (𝐁𝐮𝐥𝐤/𝐀𝐛𝐬𝐨𝐫𝐩𝐭𝐢𝐨𝐧/𝐅𝐥𝐨𝐚𝐭/𝐄𝐪𝐮𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧) dynamically adjusts voltage/current per chemistry. Safely harness solar panels, smart/conventional vehicle alternators, or DC sources with unified control. Engineered for RVs, boats, and off-grid systems demanding seamless multi-source power management
- 𝐂𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧: Renogy 40A DC-DC Battery Charger With mppt incorporates comprehensive system protection, offering full safeguarding for solar, generator, and battery connections. 12v 40A Battery Charger effectively handles reverse polarity, over-voltage, under-voltage, and over-temperature conditions, ensuring reliable and 𝐬𝐚𝐟𝐞 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧 in all scenarios
- 𝐄𝐚𝐬𝐲 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐕𝐢𝐬𝐮𝐚𝐥 𝐀𝐥𝐞𝐫𝐭𝐬: Renogy DC battery charger features indicator lights and buttons for effortless operation. 𝐎𝐧𝐞-𝐭𝐨𝐮𝐜𝐡 selection allows you to choose the correct battery type, while LED lights provide visual 𝐚𝐥𝐞𝐫𝐭𝐬 𝐟𝐨𝐫 𝐞𝐫𝐫𝐨𝐫𝐬, ensuring a hassle-free and efficient charging experience
- 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐑𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲 & 𝐄𝐱𝐭𝐫𝐞𝐦𝐞-𝐏𝐫𝐨𝐨𝐟 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞: RENOGY 40A DC-DC Charger 12V meets 𝐅𝐂𝐂/𝐑𝐨𝐇𝐒/𝐂𝐄/𝐒𝐀𝐀 safety standards with 𝟐-𝐲𝐞𝐚𝐫 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲. Engineered for desert heat (113°F) to marine cold (-4°F), featuring auto-shutoff for shorts/reverse connections + lead-acid temperature compensation. Includes color-coded cables for 15-minute installs (*Bluetooth 𝐁𝐓-𝟐 𝐬𝐨𝐥𝐝 𝐬𝐞𝐩𝐚𝐫𝐚𝐭𝐞𝐥𝐲*), ensuring durability in truck beds or coastal environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DF2XXML8 |
| Best Sellers Rank | 407,821 in Automotive ( See Top 100 in Automotive ) 1,501 in Car Battery Charging Units |
| Customer Reviews | 4.2 4.2 out of 5 stars (481) |
| Date First Available | 27 Jun. 2025 |
| Item model number | RBC40D1S |
| Manufacturer | Renogy |
| Part number | RBC40D1S |
| Power source type | dc |
| Product Dimensions | 4.8 x 19.51 x 14.91 cm; 1.28 kg |

## Product Details

- **Brand:** Renogy
- **Colour:** Black
- **Item weight:** 1.28 Kilograms
- **Output voltage:** 12 Volts (DC)
- **Product dimensions:** 4.8D x 19.5W x 14.9H centimetres

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61YHHKvMD2L.jpg)

## Questions & Answers

**Q: What type of alternator is this DC to DC on board battery charger compatible with?**
A: This battery charger is designed to work with both conventional and smart alternators.

**Q: What types of battery does the charger support?**
A: 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.

**Q: How do l set the battery since there is no display screen?**
A: 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.

**Q: If both solar power and the engine are available, can we prioritize using solar power to charge the battery?**
A: Our product defaults to DC charging. To prioritize solar charging, simply press the SELECT button on the side.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 25 September 2022*

Other than a issue with a TAX invoice as in they do not supply one a major pain In Australia if you want to claim the unit as a Business expense as is what i wanted to do. The unit is by far the best one i have tested so far. It does not just charge and cut off it also supplies power to the connected devices so as not to run the battery down when the battery is full and the sun is still shinning. So if you don't need to right this off TAX wise i would recommend it. So 5 stars for the Item 1 start for the seller.

### ⭐⭐⭐⭐⭐ Review
*by J***U on 22 December 2025*

I rarely leave reviews and in most cases only when I am really annoyed by a product. But this unit is really great at a very resonable price! Works very well, is compact, and has many great features that only a combined dual (solar and alternator) charger can provide. For example charging my starter battery when the solar battery is full. I think I had a small parasitic drain on the van which caused the battery to be empty after a few weeks of not driving. With the renogy charger that is no longer a problem. And of course the main function to support dual charging is also great. I specifically used the smaller version (30A) to limit stress on the alternator . That is probably the only missing feature I can think of: configure the max draw from the alternator in the app. But with the 30A version that is not really a problem. And I anyway only have 400W of solar, so 30A is fine.

### ⭐⭐⭐⭐⭐ Review
*by S***G on 13 September 2025*

Super easy to install and charges really well. Renogy make incredibly well build products and I would highly recommend. It allows us to run the fridge when travelling in our trailer on battery power without running down the battery. You do need to ensure you run the correct wire gauge for the length of your run from your vehicle battery to the charger. I would also recommend to get the appropriate circuit breakers for safety.

## Frequently Bought Together

- 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 500A Battery Monitor with Shunt, High and Low Voltage Programmable Alarm, Range 10V-120V up to 500A, 20ft Shielded Cable, Compatible 12V Lithium Sealed, Gel, Flooded Batteries,Black
- Renogy 2000W Pure Sine Wave Inverter 12V DC to 120V AC Converter for Home, RV, Truck, Off-Grid Solar Power Inverter 12V to 110V with Built-in 5V/2.1A USB / Hardwire Port, Remote Controller

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-02-05*