--- product_id: 317954116 title: "Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine" brand: "renogy" price: "โ‚ฌ 348.38" currency: EUR in_stock: true reviews_count: 13 category: "Renogy" url: https://www.desertcart.sk/products/317954116-renogy-dc-to-dc-charger-with-mppt-12v-30a-multi store_origin: SK region: Slovakia --- # 30A high-current output Multi-chemistry battery support MPPT solar prioritization Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine **Brand:** renogy **Price:** โ‚ฌ 348.38 **Availability:** โœ… In Stock ## Summary > ๐Ÿ”Œ Power your adventures smarter, longer, and cleaner with Renogyโ€™s dual-source DC charger! ## Quick Answers - **What is this?** Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine by renogy - **How much does it cost?** โ‚ฌ 348.38 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/317954116-renogy-dc-to-dc-charger-with-mppt-12v-30a-multi) ## 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 - โ€ข **Next-Level Monitoring:** Bluetooth-ready with Renogy app integration for real-time voltage, temperature, and fault tracking on your phone. - โ€ข **Dual-Source Power Boost:** Simultaneously charges from solar panels and alternators to maximize uptime and slash fuel costs. - โ€ข **Marine-Grade Durability:** Built tough with 8 key protections including isolation, over-voltage, and reverse polarity for harsh environments. - โ€ข **Compact & Ready to Install:** Lightweight (3.13 lbs) and small footprint fits tight spaces in RVs, cars, and boats without hassle. - โ€ข **Smart MPPT Multi-Stage Charging:** Advanced 3-phase charging (Bulk, Boost, Float) ensures your batteries hit 100% efficiently and safely. ## Overview The Renogy DC to DC Charger is a 12V 30A multi-stage battery charger designed for professional-grade dual-battery systems in RVs, cars, and marine vessels. It intelligently prioritizes solar input with MPPT technology while supporting alternator charging, compatible with lithium, AGM, gel, and flooded batteries. Compact and rugged, it features advanced protections and smart monitoring capabilities via Bluetooth, ensuring maximum battery life and off-grid freedom. ## 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: Great features, good price - 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: 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 itโ€™s cloudy and Iโ€™m using power then the vehicle will charge the batteries as Iโ€™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 - ๐ƒ๐ฎ๐š๐ฅ-๐’๐จ๐ฎ๐ซ๐œ๐ž Charging for ๐Œ๐š๐ฑ๐ข๐ฆ๐ฎ๐ฆ ๐”๐ฉ๐ญ๐ข๐ฆ๐ž: Charge service or start batteries simultaneously from solar panels and alternators! Renogy DC to DC charger with MPPT prioritizes solar energy when both inputs are active, reducing fuel costs. Ideal for RV, marine, and car dual-battery systems, 30A battery charger supports lead-acid, lithium, AGM, gel, and flooded batteries.๐๐ž๐ฏ๐ž๐ซ ๐ฐ๐จ๐ซ๐ซ๐ฒ ๐š๐›๐จ๐ฎ๐ญ ๐๐ž๐š๐ ๐›๐š๐ญ๐ญ๐ž๐ซ๐ข๐ž๐ฌ ๐š๐ ๐š๐ข๐ง - ๐Œ๐๐๐“ ๐„๐Ÿ๐Ÿ๐ข๐œ๐ข๐ž๐ง๐œ๐ฒ & ๐Ÿ‘-๐’๐ญ๐š๐ ๐ž Smart Charging: 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 (๐๐ฎ๐ฅ๐ค, ๐๐จ๐จ๐ฌ๐ญ ๐š๐ง๐ ๐…๐ฅ๐จ๐š๐ญ) to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to ๐Ÿ๐ŸŽ๐ŸŽ% - ๐”๐ฅ๐ญ๐ข๐ฆ๐š๐ญ๐ž Marine Charger: Renogy DC-DC On-Board Battery Charger. Robust dc to dc charger 12v (24V compatible) delivers ๐Ÿ– ๐Š๐ž๐ฒ ๐๐ซ๐จ๐ญ๐ž๐œ๐ญ๐ข๐จ๐ง: Isolation, Over-Voltage/Current/Temp, Reverse Polarity (Solar/Alt), Reverse Current & Overheat. Uniquely solar-charges start batteries during low voltage. Perfect dc to dc charger 12v lifepo4 for AGM/GEL/Flooded. Seamless with traditional/smart alternators. ๐€๐ฅ๐ฅ-๐ข๐ง-๐จ๐ง๐ž ๐ฆ๐š๐ซ๐ข๐ง๐ž-๐ ๐ซ๐š๐๐ž ๐ฉ๐จ๐ฐ๐ž๐ซ ๐Ÿ๐จ๐ซ ๐ก๐š๐ซ๐ฌ๐ก ๐ž๐ง๐ฏ๐ข๐ซ๐จ๐ง๐ฆ๐ž๐ง๐ญ๐ฌ - ๐‹๐ข๐ ๐ก๐ญ & ๐’๐ฆ๐š๐ฅ๐ฅ, ๐‘๐ž๐š๐๐ฒ ๐ญ๐จ ๐›๐ž ๐’๐ž๐ญ ๐”๐ฉ: With only 9.6in in length, 5.7in in height, and 3.13lbs in weight, Renogy DC-DC Car Battery Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from limited room in you vehicle - ๐Œ๐จ๐๐›๐ฎ๐ฌ ๐’๐ฆ๐š๐ซ๐ญ ๐Œ๐จ๐ง๐ข๐ญ๐จ๐ซ๐ข๐ง๐  ๐„๐œ๐จ๐ฌ๐ฒ๐ฌ๐ญ๐ž๐ฆ: Renogy 12V 30A DC Charger compatible with Renogy One/RMS-DCDC screens & DC Home App. Real-time tracking of voltage, temperature, and faults via RS485. Bluetooth ready with ๐๐“-๐Ÿ ๐ฆ๐จ๐๐ฎ๐ฅ๐ž (sold separately). Recommended to match with ๐Ÿ’๐ŸŽ๐€ ๐€๐๐‹ ๐…๐ฎ๐ฌ๐ž(sold separately) protect your controller, wire, and battery from overcurrent ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B093BB3PCV | | Amperage | 30 Amps | | Battery Charge Time | 100 minutes | | Best Sellers Rank | #21,244 in Automotive ( See Top 100 in Automotive ) #124 in Battery Chargers | | Brand | Renogy | | Built-In Media | battery charger | | Charging Time | 100 minutes | | Connector Type Used on Cable | Cigarette Lighter (DC) | | Current Rating | 30 Amps | | Customer Reviews | 4.2 out of 5 stars 534 Reviews | | Input Voltage | 12 Volts | | Item Dimensions D x W x H | 9.6"D x 3"W x 5.7"H | | Item Type Name | Using Multi-Stage Charging, Charger for Solar Panel and Alternator, in RV, Car, Marine | | Item Weight | 3.13 Pounds | | Manufacturer | Renogy | | Mfr Part Number | 12V 30A | | Model Number | 12V 30A DC to DC Charger with MPPT | | Output Voltage | 12 Volts (DC) | | Product Dimensions | 9.6"D x 3"W x 5.7"H | | UPC | 810009719021 | | Warranty Description | 3-year material and workmanship warranty | ## Product Details - **Brand:** Renogy - **Input Voltage:** 12 Volts - **Item Weight:** 3.13 Pounds - **Output Voltage:** 12 Volts (DC) - **Product Dimensions:** 9.6"D x 3"W x 5.7"H ## Images ![Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine - Image 1](https://m.media-amazon.com/images/I/51W5PbJH4LL.jpg) ![Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine - Image 2](https://m.media-amazon.com/images/I/51n9g56H+dL.jpg) ![Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine - Image 3](https://m.media-amazon.com/images/I/61viX5KHKML.jpg) ![Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine - Image 4](https://m.media-amazon.com/images/I/61H88htlMPL.jpg) ![Renogy DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine - Image 5](https://m.media-amazon.com/images/I/61Sajyv21jL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### โญโญโญโญโญ Great features, good price *by J***U on December 22, 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. ### โญโญโญโญโญ Awesome charger! *by J***. on September 14, 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 itโ€™s cloudy and Iโ€™m using power then the vehicle will charge the batteries as Iโ€™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. ### โญโญโญโญโญ Game changer *by C***L on April 23, 2026* I got this for my van build. The sun doesn't always shine but the wheels keep a-turning! I would highly recommend this thing if you're built right for it. MAKE SURE YOUR ALTERNATOR CAN HANDLE THE EXTRA LOAD!!!! Aftermarket high output alternators highly recommended. This unit reliably pulls 48 to 50 amp and up to 700 w when it's really cranking. BE SURE YOU HAVE THE RIGHT FUSES AND OVERSIZED WIRE! If you disregard my warnings you stand the real risk of killing your alt and possibly burning yourself to the ground. It's a lot of juice. Handle it with respect. Do your math and your homework. Also keep in mind that a ton of heat is being generated at the charger. Make sure you have plenty of ventilation to dispell the excess heat and I would advise putting a couple cheap thermostat controlled laptop fans on it. They're like 6 dollars. This will help preserve the charger and prevent excessive heat build up in your cabinet. I actually put a large laptop fan in the air intake opening I put on my cabinet and another to exhaust the heat from the box. Otherwise It's very easy to hook up and required nothing special to hook up and fire up. Worth every cent. Just don't wing it , ok? It's not cheap and messing with this stuff without the right information and prep could cost you dearly. ## Frequently Bought Together - Renogy 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 - Renogy BT-2 Bluetooth Module RJ45 Communication Port Wirelessly Monitor Real-time Insight Precise Control, Compatible Solar Charge Controllers, Battery Charger, Inverter, BT-2 RS485 - 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? - ๐Ÿ›’ **Trusted by 1.3+ Million Shoppers** โ€” Serving international shoppers since 2016 - ๐ŸŒ **Shop Globally** โ€” Access 737+ million products across 21 categories - ๐Ÿ’ฐ **No Hidden Fees** โ€” All customs, duties, and taxes included in the price - ๐Ÿ”„ **15-Day Free Returns** โ€” Hassle-free returns (30 days for PRO members) - ๐Ÿ”’ **Secure Payments** โ€” Trusted payment options with buyer protection - โญ **TrustPilot Rated 4.5/5** โ€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/317954116-renogy-dc-to-dc-charger-with-mppt-12v-30a-multi](https://www.desertcart.sk/products/317954116-renogy-dc-to-dc-charger-with-mppt-12v-30a-multi) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-13*