--- product_id: 317954116 title: "Renogy Smart 30A DC-DC MPPT Battery Charger 12V Dual Input for RVs/Vans | 30V/400W solar input,AGM/Gel/Flooded/Li, MPPT 99% tracking,alternator+dual input,overvoltage/short protection,negative ground" brand: "renogy" price: "โ‚ฉ523635" currency: KRW in_stock: true reviews_count: 9 url: https://www.desertcart.kr/products/317954116-renogy-smart-30a-dc-dc-mppt-battery-charger-12v-dual store_origin: KR region: South Korea --- # 30A high-current output Bluetooth & app monitoring MPPT solar prioritization Renogy Smart 30A DC-DC MPPT Battery Charger 12V Dual Input for RVs/Vans | 30V/400W solar input,AGM/Gel/Flooded/Li, MPPT 99% tracking,alternator+dual input,overvoltage/short protection,negative ground **Brand:** renogy **Price:** โ‚ฉ523635 **Availability:** โœ… In Stock ## Summary > ๐Ÿ”‹ Stay charged, stay unstoppable โ€” power your adventures smarter! ## Quick Answers - **What is this?** Renogy Smart 30A DC-DC MPPT Battery Charger 12V Dual Input for RVs/Vans | 30V/400W solar input,AGM/Gel/Flooded/Li, MPPT 99% tracking,alternator+dual input,overvoltage/short protection,negative ground by renogy - **How much does it cost?** โ‚ฉ523635 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/317954116-renogy-smart-30a-dc-dc-mppt-battery-charger-12v-dual) ## 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 **Marine-Grade Durability:** 8-layer protection guards against voltage spikes, overheating, and reverse polarity. - โ€ข **Dual-Source Power Mastery:** Simultaneously charges from alternator & solar for max uptime and fuel savings. - โ€ข **Real-Time Remote Monitoring:** Bluetooth-ready with Renogy app for instant voltage, temp, and fault alerts on your phone. - โ€ข **Smart MPPT 3-Stage Charging:** Optimizes solar input with bulk, boost, and float phases for 100% battery health. - โ€ข **Compact & Lightweight Design:** Fits tight RV/van spaces with just 3.1 lbs and under 10 inches length. ## Overview The Renogy Smart 30A DC-DC MPPT Battery Charger is a compact, dual-input charger designed for RVs, vans, and marine use. It intelligently prioritizes solar energy with MPPT technology, supports multiple battery chemistries, and offers robust 8-point protection. With Bluetooth compatibility and app monitoring, it ensures you never run out of power while off-grid, all in a durable, space-saving design. ## 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,ย Gel,ย AGM, orย Lithium batteries. With RJ45 communication port featured, you can unlock monitoring features exclusively using theโ€‚BT-2 Bluetooth Moduleย and Renogy DC Home App, control and monitor the device remotely through your phone in real time. ## 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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 | |---------------|-------| | Amperage | 30 A | | Asin | B093BB3PCV | | Battery Charge Time | 100 minutes | | Best Sellers Rank | #23,477 in Automotive (See Top 100 in Automotive) #122 in Battery Chargers | | Brand | Renogy | | Built In Media | battery charger | | Color | Black | | Compatible Devices | Renogy One/RMS-DCDC screens & DC Home App | | Connector Type Used On Cable | Cigarette Lighter (DC) | | Current Rating | 30 A | | Customer Reviews | 4.3 4.3 out of 5 stars (162) 4.3 out of 5 stars | | 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 | 3.1 pounds | | Manufacturer | Renogy | | Mfr Part Number | 12V 30A | | Model Number | 12V 30A DC to DC Charger with MPPT | | Number Of Items | 1 | | Output Voltage | 12 volts_of_direct_current | | Specification Met | UL, CE | | Upc | 810009719021 | | Warranty Description | 3-year material and workmanship warranty | ## Product Details - **Brand:** Renogy - **Color:** Black - **Item Weight:** 3.1 pounds - **Output Voltage:** 12 volts_of_direct_current - **Product Dimensions:** 9.6"D x 3"W x 5.7"H ## Images ![Renogy Smart 30A DC-DC MPPT Battery Charger 12V Dual Input for RVs/Vans | 30V/400W solar input,AGM/Gel/Flooded/Li, MPPT 99% tracking,alternator+dual input,overvoltage/short protection,negative ground - Image 1](https://m.media-amazon.com/images/I/51W5PbJH4LL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### โญโญโญโญโญ Great features, good price *by on Reviewed in the United States 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 Literally Genius *by on Reviewed in the United States June 12, 2026* This bit of kit was a real find.Does all the jobs beautifully! Have removed my solar charge controller, no longer needed and this unit is way more efficient. Finds my alternator and balances charge between my lead starter and lithium domestic.It like perfect problem solving in a plug and play box. Literally genius ### โญโญโญโญโญ Keeps batteries topped off after travel day! *by on Reviewed in the United States May 8, 2025* I wouldnโ€™t want to travel without it. We use this unit, 30a dc-dc w/ mppt, to keep our batteries topped off while traveling. We have an inverter, which allows us to run our fridge in AC mode while driving down the highway. This unit gives us 30a from the alternator, the fridge using 25a and 5 amp charging the batteries. When we arrive at our destination the food is cold and the batteries are usually topped off. We also hook up a Renogy portable 200w panel and a 100w panel. These are connected in parallel, as this unit canโ€™t handle more than 25v in PV mode. I run two 6awg wires to the PV input with Anderson connectors on each one for my portable panels. I usually get around 220-270w of power from this unit, which competes with my 510w of roof mounted panels until mid day. Also note, if you use this unit with panels and alternator, you will receive a max of 15a from the panels and 15a from the alternator. Thatโ€™s just the way the unit works. If mine even fails, I will replace it immediately with the same unit. Iโ€™ve been using this setup for two years now and took a trip to Alaska and back, traveling almost every day. Iโ€™m very pleased! ## 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.kr/products/317954116-renogy-smart-30a-dc-dc-mppt-battery-charger-12v-dual](https://www.desertcart.kr/products/317954116-renogy-smart-30a-dc-dc-mppt-battery-charger-12v-dual) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-27*