--- product_id: 744695202 title: "RENOGY REGO 12V 40A DC-DC Battery Charger with LiFePO4 Activation, Waterproof Smart Battery Charger Compatibility with Flooded, Gel, AGM, and Lithium Batteries for RV Marine Truck All Weather" brand: "renogy rego" price: "€ 376.30" currency: EUR in_stock: true category: "Renogy Rego" url: https://www.desertcart.hr/products/744695202-renogy-rego-12v-40a-dc-dc-battery-charger-with-lifepo4 store_origin: HR region: Croatia --- # 40A rapid charging power Bluetooth remote monitoring Arctic-proof -13℉ to 140℉ range RENOGY REGO 12V 40A DC-DC Battery Charger with LiFePO4 Activation, Waterproof Smart Battery Charger Compatibility with Flooded, Gel, AGM, and Lithium Batteries for RV Marine Truck All Weather **Brand:** renogy rego **Price:** € 376.30 **Availability:** ✅ In Stock ## Summary > ⚡ Power up smarter, not harder — never get left powerless again! ## Quick Answers - **What is this?** RENOGY REGO 12V 40A DC-DC Battery Charger with LiFePO4 Activation, Waterproof Smart Battery Charger Compatibility with Flooded, Gel, AGM, and Lithium Batteries for RV Marine Truck All Weather by renogy rego - **How much does it cost?** € 376.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/744695202-renogy-rego-12v-40a-dc-dc-battery-charger-with-lifepo4) ## Best For - renogy rego enthusiasts ## Why This Product - Trusted renogy rego brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Next-Level Remote Control:** Optional BT-2 Bluetooth module lets you monitor and adjust charging parameters via the RENOGY DC Home app, with 365 days of data logging. - • **Smart Alternator Protection:** Intelligent alternator detection prevents starter battery drain, safeguarding your vehicle’s critical power source. - • **Built for Extreme Conditions:** IP32 waterproof casing and arctic-proof design ensure flawless performance from salt spray to blizzards (-13℉ to 140℉). - • **One-Touch LiFePO4 Activation:** Activate or deactivate LiFePO4 battery mode instantly with a simple button, giving you full control over battery health. - • **Turbo-Charge Your Battery Life:** 40A high-current output revives and maintains LiFePO4, AGM, Gel, and Flooded batteries twice as fast. ## Overview The RENOGY REGO 12V 40A DC-DC Battery Charger is a rugged, intelligent charger designed for RVs, marine, trucks, and off-grid setups. It supports multiple battery types including LiFePO4 with a unique one-touch activation, features smart alternator detection to protect starter batteries, and withstands extreme weather conditions. With optional Bluetooth connectivity, users can remotely monitor and control charging, making it a must-have for professionals who demand reliable, efficient power management on the go. ## Description 𝐑𝐄𝐍𝐎𝐆𝐘 40A DC-DC Charger turbo-charges RV/boat batteries 2x faster—revive dead LiFePO4 with one-touch Savior Mode! Perfect for liveaboard yachts or off-grid cabins, this 12V DC to DC charger supports AGM/GEL/custom lithium. Survive salt spray and blizzards with IP32 armored casing and military-grade reverse polarity protection. Monitor 40A charging currents remotely via App (RJ485/BT-2). Smart alternator compatibility (12-16V) prevents starter drain, while arctic-proof design (-13℉ to 140℉) auto-throttles output above 113℉. With ＜15mA standby drain, never wake to dead batteries in overlanding rigs. Trusted by Pacific fishermen and Alaskan truckers ## Features - 𝐒𝐚𝐟𝐞𝐠𝐮𝐚𝐫𝐝 𝐭𝐡𝐞 𝐒𝐭𝐚𝐫𝐭𝐞𝐫 𝐁𝐚𝐭𝐭𝐞𝐫𝐲: This onboard 12V dc to dc battery charger not only features𝐛𝐮𝐢𝐥𝐭-𝐢𝐧 𝐚𝐥𝐭𝐞𝐫𝐧𝐚𝐭𝐨𝐫 𝐫𝐮𝐧𝐧𝐢𝐧𝐠 𝐝𝐞𝐭𝐞𝐜𝐭𝐢𝐨𝐧 to ensure charging only occurs when the engine is running, protecting the vehicle battery, but also boasts intelligent charging strategies. Even during the instant of vehicle startup, RV battery charger swiftly adjusts the charging mode, 𝐠𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞𝐢𝐧𝐠 𝐧𝐨 𝐡𝐚𝐫𝐦 𝐭𝐨 𝐭𝐡𝐞 𝐬𝐭𝐚𝐫𝐭𝐞𝐫 𝐛𝐚𝐭𝐭𝐞𝐫𝐲 - 𝐒𝐢𝐦𝐩𝐥𝐞 𝐚𝐧𝐝 𝐂𝐨𝐦𝐩𝐚𝐜𝐭 𝐋𝐚𝐲𝐨𝐮𝐭-The second generation DC battery charger adopts a 𝐰𝐚𝐥𝐥-𝐦𝐨𝐮𝐧𝐭𝐞𝐝 𝐝𝐞𝐬𝐢𝐠𝐧, simple yet efficient, facilitating easy installation for solar beginners. Dc to dc charger 12v lifepo4 unique internal layout ensures a 𝐬𝐚𝐟𝐞 𝐝𝐢𝐬𝐭𝐚𝐧𝐜𝐞 between the input and output power terminals, effectively 𝐚𝐯𝐨𝐢𝐝𝐢𝐧𝐠 𝐭𝐡𝐞 𝐫𝐢𝐬𝐤 𝐨𝐟 𝐩𝐨𝐬𝐢𝐭𝐢𝐯𝐞 𝐚𝐧𝐝 𝐧𝐞𝐠𝐚𝐭𝐢𝐯𝐞 𝐩𝐨𝐥𝐞 𝐬𝐡𝐨𝐫𝐭 𝐜𝐢𝐫𝐜𝐮𝐢𝐭𝐬 - 𝐋𝐢 𝐁𝐚𝐭𝐭𝐞𝐫𝐲 𝐀𝐜𝐭𝐢𝐯𝐚𝐭𝐢𝐨𝐧 𝐎𝐧/𝐎𝐟𝐟: 40A DCC battery charger features intelligent Li battery activation, ensuring optimal battery performance. Meanwhile, considering users' personalized needs, a simple 𝐨𝐧𝐞-𝐭𝐨𝐮𝐜𝐡 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧 allows easy activation and deactivation of this feature, giving you complete control over the battery's status - 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐞𝐥𝐞𝐜𝐭𝐫𝐨𝐧𝐢𝐜 𝐩𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧: Dc to dc lifepo4 charger adopts advanced protection technology, ensuring 𝐜𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐬𝐚𝐟𝐞𝐭𝐲 for your vehicle. Marine battery charger effectively 𝐩𝐫𝐞𝐯𝐞𝐧𝐭𝐬 𝐨𝐯𝐞𝐫𝐥𝐨𝐚𝐝, 𝐬𝐡𝐨𝐫𝐭 𝐜𝐢𝐫𝐜𝐮𝐢𝐭𝐬, 𝐚𝐧𝐝 𝐡𝐚𝐧𝐝𝐥𝐞𝐬 𝐜𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞𝐬 like over-temperature and over-voltage effortlessly. Even in high-temperature environments, it intelligently adjusts output power, ensuring efficient and safe charging - 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐁𝐥𝐮𝐞𝐭𝐨𝐨𝐭𝐡 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 (𝐑𝐞𝐪𝐮𝐢𝐫𝐞𝐬 𝐨𝐩𝐭𝐢𝐨𝐧𝐚𝐥 𝐁𝐓-𝟐 𝐁𝐥𝐮𝐞𝐭𝐨𝐨𝐭𝐡 𝐦𝐨𝐝𝐮𝐥𝐞)- Add the advanced BT-2 Bluetooth module (𝐬𝐨𝐥𝐝 𝐬𝐞𝐩𝐚𝐫𝐚𝐭𝐞𝐥𝐲) to enable remote control of charging parameters via the 𝐑𝐄𝐍𝐎𝐆𝐘 DC Home app. Additionally, this 12V to 12V battery charger records up to 𝟑𝟔𝟓 days of data for comprehensive ecosystem monitoring ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0FBGF7TYH | | Amperage | 40 Amps | | Best Sellers Rank | #109,009 in Automotive ( See Top 100 in Automotive ) #464 in Battery Chargers | | Brand | RENOGY REGO | | Color | Black | | Compatible Devices | AGM, GEL, Lithium, Remote Monitoring Devices (RJ485, Bluetooth) | | Connector Type Used on Cable | RJ485, Bluetooth (BT-2) | | Current Rating | 40 Amps | | Customer Reviews | 3.8 3.8 out of 5 stars (13) | | Input Voltage | 16 Volts | | Item Dimensions D x W x H | 2.3"D x 9.31"W x 5.17"H | | Manufacturer | RENOGY Rego | | Mfr Part Number | RBC40D1U | | Model Number | 40A Fast Charge | | Output Voltage | 12 Volts (DC) | | Specification Met | UL | | Unit Count | 1.0 Count | | Warranty Description | 2-year material and workmanship warranty | ## Product Details - **Brand:** RENOGY REGO - **Color:** Black - **Output Voltage:** 12 Volts (DC) - **Product Dimensions:** 2.3"D x 9.31"W x 5.17"H - **Specification Met:** UL ## Images ![RENOGY REGO 12V 40A DC-DC Battery Charger with LiFePO4 Activation, Waterproof Smart Battery Charger Compatibility with Flooded, Gel, AGM, and Lithium Batteries for RV Marine Truck All Weather - Image 1](https://m.media-amazon.com/images/I/515q7rAKn-L.jpg) ## Available Options This product comes in different **Model** options. --- ## 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.hr/products/744695202-renogy-rego-12v-40a-dc-dc-battery-charger-with-lifepo4](https://www.desertcart.hr/products/744695202-renogy-rego-12v-40a-dc-dc-battery-charger-with-lifepo4) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-11*