--- product_id: 654508904 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: "₨164154" currency: LKR in_stock: true reviews_count: 5 category: "Renogy" url: https://www.desertcart.lk/products/654508904-12v-40a-dc-to-dc-battery-charger-with-solar-input store_origin: LK region: Sri Lanka --- # 40A high-current output Multi-chemistry battery compatibility MPPT solar input for max 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:** ₨164154 **Availability:** ✅ In Stock ## Summary > 🔌 Power your adventures smarter, safer, and greener! ## 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?** ₨164154 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/654508904-12v-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 - • **Robust Safety Protections:** Built-in safeguards against reverse polarity, over-voltage, under-voltage, and overheating for worry-free power management. - • **Smart 4-Stage Charging Logic:** Optimized charging tailored for LiFePO4, Gel, Flooded, and Sealed Lead Acid batteries to extend battery life. - • **Certified Quality & Peace of Mind Warranty:** Meets FCC, RoHS, CE, and SAA standards with a 2-year warranty backing your investment. - • **Dual Charging Modes for Ultimate Flexibility:** Seamlessly switch between DC and solar input to keep your batteries charged wherever you are. - • **Intuitive LED Indicators & One-Touch Controls:** Effortless operation with clear visual alerts and easy battery type selection—no guesswork needed. ## Overview The Renogy 12V 40A DC to DC Battery Charger with MPPT technology delivers versatile dual charging modes—DC input priority and solar input priority—ensuring efficient battery charging on the move or at rest. Compatible with LiFePO4, Gel, Flooded, and Sealed Lead Acid batteries, it features a smart 4-stage charging process and comprehensive safety protections. With built-in Bluetooth connectivity, intuitive controls, and international certifications, this compact charger is engineered for reliable, hassle-free power management in RVs, cars, camping setups, and marine applications. ## 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: Very happy I got this exact model - I researched for probably three months on what DC to DC charger I was gonna get. This one was highly recommended by everyone. As well as offering solar charging and coming from a reputable brand I know I can trust. I’ve been using it for about a month already and it’s worked awesome. I don’t think it’s possible to find a better deal especially for high-quality name and product like this one. Review: Don’t need BT-2 unit with this - I actually haven’t fired this controller up yet but wanted to clarify this unit doesn’t need a BT-2 unit as many reviewers suggest. Here is response from Renogy service: Based on the provided information for the RBC40D1S charger, the unit has a built-in Bluetooth communication function. This means you can connect directly to the Renogy DC Home or Core app via Bluetooth to monitor and adjust settings; an external BT-2 module is not required for this model. Since the RBC40D1S has integrated Bluetooth, the BT-2 module is typically used for Renogy products that do not have built-in Bluetooth. It is possible that the BT-2 is not compatible with your specific charger model. ## Features - Two Charging Options-The Renogy 40A DC-DC MPPT battery charger offers two versatile charging modes to maximize efficiency. The charger defaults to DC input priority mode. It will automatically switch to the alternate charging mode when the input voltage in the primary mode falls below the default voltage. This ensures maximum efficiency in charging your battery whether you're on the road or parked. - Versatile Compatibility-Compatible with various battery types: LiFePO4, Gel, Flooded, and Sealed Lead Acid. It features a 4-stage charging logic that adapts to different battery characteristics for safe and efficient charging. - Comprehensive Protection-The Renogy 40A DC-DC MPPT charger incorporates comprehensive system protection, offering full safeguarding for solar, generator, and battery connections. It 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-The Renogy 40A DC-DC 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 Quality for Long-Term Reliability-This battery charger is certified to multiple safety standards, including FCC, RoHS, CE, and SAA, ensuring it meets international benchmarks. It also comes with a 2-year comprehensive warranty, providing robust assurance for your use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DF2XXML8 | | Amperage | 40 Amps | | Best Sellers Rank | #123,434 in Electronics ( See Top 100 in Electronics ) #487 in Household Battery Chargers | | Brand | Renogy | | Color | Black | | Colour | Black | | Compatible Devices | LiFePO4, Gel, Flooded and Sealed Lead Acid Batteries | | Connector Type Used on Cable | DC, Battery Terminal | | Current Rating | 40 Amps | | Customer Reviews | 3.9 out of 5 stars 56 Reviews | | 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 centimeters | | Item Weight | 1.28 Kilograms | | Item weight | 1.28 Kilograms | | Manufacturer | Renogy | | Mfr Part Number | RBC40D1S | | Model Number | RBC40D1S | | Number of Ports | 2 | | Output Voltage | 12 Volts (DC) | | Output voltage | 12 Volts (DC) | | Product dimensions | 4.8D x 19.5W x 14.9H centimeters | | Specification Met | FCC, RoHS, CE, SAA | | Specification met | FCC, RoHS, CE, SAA | | UPC | 840315228436 | | Unit Count | 1 Count | ## 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 centimeters ## 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 ### ⭐⭐⭐⭐⭐ Very happy I got this exact model *by R***. on 21 May 2026* I researched for probably three months on what DC to DC charger I was gonna get. This one was highly recommended by everyone. As well as offering solar charging and coming from a reputable brand I know I can trust. I’ve been using it for about a month already and it’s worked awesome. I don’t think it’s possible to find a better deal especially for high-quality name and product like this one. ### ⭐⭐⭐⭐⭐ Don’t need BT-2 unit with this *by G***R on 8 April 2026* I actually haven’t fired this controller up yet but wanted to clarify this unit doesn’t need a BT-2 unit as many reviewers suggest. Here is response from Renogy service: Based on the provided information for the RBC40D1S charger, the unit has a built-in Bluetooth communication function. This means you can connect directly to the Renogy DC Home or Core app via Bluetooth to monitor and adjust settings; an external BT-2 module is not required for this model. Since the RBC40D1S has integrated Bluetooth, the BT-2 module is typically used for Renogy products that do not have built-in Bluetooth. It is possible that the BT-2 is not compatible with your specific charger model. ### ⭐⭐⭐ BT-2 NOT compatible *by D***Y on 7 April 2026* Everything is perfect except that I bought the BT-2 and surprisingly this model 40 amps dosnt support Rj25 so u can't use the BT-2 that's why I'm giving it a 3 star ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.lk/products/654508904-12v-40a-dc-to-dc-battery-charger-with-solar-input](https://www.desertcart.lk/products/654508904-12v-40a-dc-to-dc-battery-charger-with-solar-input) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-07-07*