--- product_id: 377555287 title: "12V 30A DC to DC Charger with MPPT, On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Charger for Solar Panel and Alternator, in RV, Car, Marine" brand: "renogy" price: "€ 818.80" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.sk/products/377555287-12v-30a-dc-to-dc-charger-with-mppt-on-board store_origin: SK region: Slovakia --- # 50A max output current Bluetooth remote monitoring Multi-chemistry battery compatibility 12V 30A DC to DC Charger with MPPT, On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Charger for Solar Panel and Alternator, in RV, Car, Marine **Brand:** renogy **Price:** € 818.80 **Availability:** ✅ In Stock ## Summary > 🔌 Stay charged, stay unstoppable — power your off-grid lifestyle with Renogy’s smart DC-DC charger! ## Quick Answers - **What is this?** 12V 30A DC to DC Charger with MPPT, On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Charger for Solar Panel and Alternator, in RV, Car, Marine by renogy - **How much does it cost?** € 818.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/377555287-12v-30a-dc-to-dc-charger-with-mppt-on-board) ## 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 - • **Power-Packed 50A Output:** Delivers robust charging current to keep your batteries juiced and ready for any adventure. - • **Next-Level Remote Control:** RJ45 port + BT-2 module unlock real-time monitoring and control via Renogy DC Home app on your phone. - • **Compact & Lightweight Design:** Sleek 9.6in x 5.7in form factor fits tight spaces—perfect for modern van builds and marine setups. - • **Smart Multi-Stage MPPT Charging:** Maximizes solar and alternator input with bulk, boost, and float phases for 100% optimized battery health. - • **Universal Battery Chemistry Support:** Seamlessly charges Gel, AGM, Flooded, and Lithium batteries with tailored multi-stage profiles. ## Overview The Renogy 12V 30A DC to DC Charger is a compact, multi-stage MPPT battery charger designed for professional-grade off-grid power management. Compatible with Gel, AGM, Flooded, and Lithium batteries, it intelligently optimizes charging from both alternator and solar inputs. Featuring a robust 50A output, multiple safety protections, and Bluetooth-enabled remote monitoring, it’s engineered to keep your service batteries fully charged and your adventures uninterrupted. ## Description Renogy's dc to dc mppt on board battery charger is designed to give you options this multi stage, multi input battery charger can charge a service battery from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first it's the smart way to keep yourself fully charged and off grid longer and with multi stage charging and multi chemistry functionality, renogy's dc to dc mppt charger has you covered whether you're using flooded,.gel,.agm, or.lithium batteries. With rj45 communication port featured, you can unlock monitoring features exclusively using the bt 2 bluetooth module.and renogy dc home app, control and monitor the device remotely through your phone in real time. Review: A great compliment to our trailer - 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. Review: Awesome charger! - I have a cargo trailer that I use for work with a 2000 watt inverter to run power tool chargers & lights in the trailer. I have a 200 watt solar array connected to the solar input as well as the vehicle smart alternator input. The (2) 100 Ah AGM batteries stay charged through this device to where I never have to plug in my trailer to the house to charge my batteries. What I like about this product is if it’s cloudy and I’m using power then the vehicle will charge the batteries as I’m driving from job to job or I can start the truck for a few minutes and get a charge. This device also prevents voltage feeding back to the vehicle from my trailer batteries as it would if it were connected straight to the battery output from the truck. It also prevents overcharging of the batteries, extending the life. Lastly, the ability to change battery types on this device makes it great to use for different battery chemical types. The price is a little high but it does exactly what I need in just one device. ## Features - Recommended to Match with 60A ANL Fuse The Renogy ANL fuse will protect your controller, wire, and battery from overcurrent. - 3-phase MPPT Charging Technology With Built-in Maximum Power Point Tracking (MPPT), Renogy DC-DC On-Board Battery Charger will charge your service batteries with maximized solar power, providing 3-phase charging (Bulk, Boost and Float) to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to 100%. - Multiple Protections Renogy DC-DC On-Board Battery Charger has multiple intelligent protections includes battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection, guaranteeing charging safety and protecting you batteries. - Light & Small, Ready to be Set Up With only 9.6in in length, 5.7in in height, and 3.13lbs in weight, Renogy DC-DC On-Board Battery Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from limited room in you vehicle. - RJ45 Communication Port Featured Bluetooth Monitoring Ready. Exclusively available with the BT-2 Bluetooth Module accessory and Renogy DC Home App available on the IOS and Google Play Stores, you can monitor this device remotely and simply through your phone and stay constantly updated.. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B093BB5JKF | | Amperage | 50 Amps | | Battery Charge Time | 2 Hours | | Best Sellers Rank | #44,915 in Automotive ( See Top 100 in Automotive ) #166 in Battery Chargers | | Brand | Renogy | | Color | Charger for Solar Panel and Alternator | | Colour | Charger for Solar Panel and Alternator | | Compatible Devices | Flooded batteries, Gel batteries, AGM batteries, Lithium batteries, LiFePO4 batteries, 12V vehicle systems, RVs, Vans, Cars, Solar panels | | Current Rating | 50 Amps | | Customer Reviews | 4.2 out of 5 stars 326 Reviews | | Global Trade Identification Number | 00810009719014, 00810009719038 | | Input Voltage | 12 Volts | | Item Dimensions D x W x H | 7.6D x 24.4W x 14.5H centimeters | | Item Type Name | On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging | | Item Weight | 3.13 Pounds | | Item weight | 3.13 Pounds | | Manufacturer | Renogy | | Mfr Part Number | for Flooded, Gel, AGM | | Model Number | 12V 50A | | Number of Items | 1 | | Number of Packs | 1 | | Number of Ports | 2 | | Output Voltage | 12 Volts (DC) | | Output voltage | 12 Volts (DC) | | Product dimensions | 7.6D x 24.4W x 14.5H centimeters | | Specification Met | energy | | Specification met | energy | | UPC | 810009719014 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Renogy - **Colour:** Charger for Solar Panel and Alternator - **Item weight:** 3.13 Pounds - **Output voltage:** 12 Volts (DC) - **Product dimensions:** 7.6D x 24.4W x 14.5H centimeters ## Images ![12V 30A DC to DC Charger with MPPT, On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Charger for Solar Panel and Alternator, in RV, Car, Marine - Image 1](https://m.media-amazon.com/images/I/61BpzMploAL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Solar input is still limited to 25v on these? No upgrade planned? So much for connecting a single 450 watt 48v panel.** A: Another year later the input voltage is, yes, still 25 volt. I was hoping for a 50-75 volt model as well. My space can accommodate 1x 400 watt panel but not 2x 200 watt panels. Bummer. **Q: what is the maximum current it draws from the alternator?.** A: The victron device shows 49 amps charge without solar hooked to it . A few 1000 mile trips and its workin great . Keeps the battleborn batterys at 14.4. **Q: The manual says: "no temperature compensation when charging lithium battery". Why?** A: Lithium Batteries can be damaged if the temperature is too low (less than 32 degrees) when charging them. So you have to either have a heater (or a heat pad) to keep the batteries above temp, or you have to disconnect the charging circuit when the temperature is going to be below 32 degrees. That statement is just giving you a heads-up so that you are aware of the consequences that could occur **Q: Can i use this in an rv trailer by connecting the dc side to the output on the trailers converter, instead of an alternator?** A: Sure you can but won't get a large amount of amps (unless you have a higher amp inverter/Converter) to charge the system.. Just be sure to wire it without a smart alternator which is found on newer cars. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A great compliment to our trailer *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. ### ⭐⭐⭐⭐⭐ Awesome charger! *by J***. on 14 September 2024* I have a cargo trailer that I use for work with a 2000 watt inverter to run power tool chargers & lights in the trailer. I have a 200 watt solar array connected to the solar input as well as the vehicle smart alternator input. The (2) 100 Ah AGM batteries stay charged through this device to where I never have to plug in my trailer to the house to charge my batteries. What I like about this product is if it’s cloudy and I’m using power then the vehicle will charge the batteries as I’m driving from job to job or I can start the truck for a few minutes and get a charge. This device also prevents voltage feeding back to the vehicle from my trailer batteries as it would if it were connected straight to the battery output from the truck. It also prevents overcharging of the batteries, extending the life. Lastly, the ability to change battery types on this device makes it great to use for different battery chemical types. The price is a little high but it does exactly what I need in just one device. ### ⭐⭐⭐⭐⭐ Good charger *by A***X on 3 February 2023* I've had this wired up in my vehicle for a few months and it's doing a great job. I've regularly seen it pushing over 40A through the battery. 45 minutes driving a day is enough to keep my fridge running 24/7. Knowing how fast I can charge the battery I wish I'd bought a smaller one! ## Frequently Bought Together - Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator - 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 --- ## 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.sk/products/377555287-12v-30a-dc-to-dc-charger-with-mppt-on-board](https://www.desertcart.sk/products/377555287-12v-30a-dc-to-dc-charger-with-mppt-on-board) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-09-17*