--- product_id: 542525836 title: "12V 40A DC-DC Battery Charger with MPPT Solar Controller, Dual Input Smart Charger for 14.6V LiFePO4 Lithium Batteries, Fast Charging for RVs, Campers, Trailers, Solar, Home Backup and Off-Grid" brand: "litime" price: "₹ 38369" currency: INR in_stock: true category: "Litime" url: https://www.desertcart.in/products/542525836-12v-40a-dc-dc-battery-charger-with-mppt-solar-controller store_origin: IN region: India --- # 40A rapid charging Emergency reverse charging 99% MPPT solar efficiency 12V 40A DC-DC Battery Charger with MPPT Solar Controller, Dual Input Smart Charger for 14.6V LiFePO4 Lithium Batteries, Fast Charging for RVs, Campers, Trailers, Solar, Home Backup and Off-Grid **Brand:** litime **Price:** ₹ 38369 **Availability:** ✅ In Stock ## Summary > 🔋 Charge smarter, live freer — power your off-grid lifestyle with LiTime! ## Quick Answers - **What is this?** 12V 40A DC-DC Battery Charger with MPPT Solar Controller, Dual Input Smart Charger for 14.6V LiFePO4 Lithium Batteries, Fast Charging for RVs, Campers, Trailers, Solar, Home Backup and Off-Grid by litime - **How much does it cost?** ₹ 38369 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/542525836-12v-40a-dc-dc-battery-charger-with-mppt-solar-controller) ## Best For - litime enthusiasts ## Why This Product - Trusted litime brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Roadside Savior:** Emergency reverse charging revives your starter battery from auxiliary power—no tow needed. - • **Power Up in a Flash:** Delivers a robust 40 Amps for ultra-fast battery recharge—cut downtime and keep moving. - • **Solar Smart & Space Saver:** Integrated MPPT controller with 99% tracking efficiency eliminates extra gear and maximizes solar input. - • **Safe & Certified Reliability:** Multi-layer protection plus FCC, CE, RoHS certifications ensure safe, eco-friendly, and durable operation. - • **Dual Input, Double Convenience:** Seamlessly charges from DC sources, solar panels, or both simultaneously in hybrid mode. ## Overview The LiTime 12V 40A DC-DC Battery Charger is a versatile, high-efficiency smart charger designed for 14.6V LiFePO4 and other 12V batteries. Featuring a built-in MPPT solar controller with 99% tracking efficiency, it supports dual input charging from DC and solar sources, delivering up to 40 Amps for rapid battery restoration. Its emergency reverse charging function provides critical backup power on the go, while multi-protection systems and global safety certifications guarantee reliable, eco-conscious performance for RVs, campers, trailers, and off-grid setups. ## Description desertcart.com: LiTime 12V 40A DC-DC Battery Charger with MPPT Solar Controller, Dual Input Smart Charger for 14.6V LiFePO4 Lithium Batteries, Fast Charging for RVs, Campers, Trailers, Solar, Home Backup and Off-Grid : Automotive ## Features - Compatibility: Works seamlessly with 12V LiFePO4, AGM, Gel, SLA, and Calcium batteries. Equipped with an ACC wire for both smart and traditional alternators, it automatically adjusts charging power, giving you a true plug-and-play setup without extra hassle. - All-in-One High-Efficiency Charging: Charge your battery via DC input, solar panels, or both in hybrid mode. The built-in MPPT (99% tracking efficiency) replaces extra controllers, saving cost and space while delivering up to 93% conversion efficiency. - Emergency Reverse Charging: In case your starter battery runs flat, this 12V DC-DC charger can reverse charge directly from the auxiliary battery, letting you get back on the road quickly without waiting for roadside assistance. - 40A Output for Faster Charging: With up to 40 Amps of charging current, this dc to dc charger quickly restores battery levels. Can charge service batteries or directly power DC loads, ideal for RV, Camper, Trailers, Home Backup and Off-Grid Power Systems. - Multi-Protection: This LiTime battery charger features over-voltage, reverse polarity, over-temperature and charging timeout protection, helps extend battery lifespan, ensure safe operation in battery charging. It can also reactivate lithium batteries after BMS shutdown. FCC, CE, and RoHS certifications, ensuring safe and eco-friendly operation. - Warning: This 12 volt 40 amp dc to dc battery charger is not waterproof - not suitable for Marine environments such as boats, ships, yachts, trolling motors, etc. - Protection Upgrade: This LiTime product is covered by AIG Product Liability Insurance, effective from May 22, 2026. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C4SMQ1PX | | Amperage | 40 Amps | | Battery Charge Time | 3 Hours | | Best Sellers Rank | #43,377 in Automotive ( See Top 100 in Automotive ) #208 in Battery Chargers | | Brand | Litime | | Color | black | | Compatible Devices | Batteries (LiFePO4, AGM, Gel, SLA, Calcium) and systems (RV, Camper, Trailers, Home Backup, Off-Grid) | | Connector Type Used on Cable | DC power connector | | Current Rating | 40 Amps | | Customer Reviews | 3.8 3.8 out of 5 stars (61) | | Input Voltage | 12 Volts (DC) | | Item Dimensions D x W x H | 7.44"D x 5.83"W x 1.89"H | | Item Weight | 2.43 Pounds | | Manufacturer | LiTime | | Model Number | L12V40A-DC-Z | | Number of Ports | 2 | | Output Voltage | 12 Volts | | Specification Met | CE, FCC, RoHS | | Warranty Description | 2 Years Warranty | ## Product Details - **Brand:** Litime - **Color:** black - **Item Weight:** 2.43 Pounds - **Output Voltage:** 12 Volts - **Product Dimensions:** 7.44"D x 5.83"W x 1.89"H ## Images ![12V 40A DC-DC Battery Charger with MPPT Solar Controller, Dual Input Smart Charger for 14.6V LiFePO4 Lithium Batteries, Fast Charging for RVs, Campers, Trailers, Solar, Home Backup and Off-Grid - Image 1](https://m.media-amazon.com/images/I/71UNjnxThrL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: When installing the DC-DC charger, are there any precautions I need to be aware of?** A: First, installing the charger vertically will improve venting and heat dissipation of the charger. Additionally, positioning the DC-DC charger nearer the service battery is advised. **Q: Can the battery be charged with both the solar and the alternator at the same time?** A: The DC-DC charger will choose the DC input automatically rather than charging the service battery with both the solar and DC inputs. **Q: Can LiTime 12V 40A DC-DC charger activate the low voltage LiFePO4 battery?** A: YES, LiTime 12V 40A DC-DC has a lithium battery activation function, but the battery needs to be disconnected from the load for activation. **Q: Should I add breakers (fuses) when using a DC-DC charger?** A: YES, it is strongly advised. It is suggested that a breaker be installed between the DC-DC charger and the starter battery. ## Frequently Bought Together - LiTime 12V 40A DC-DC Dual Input Battery Charger with MPPT fit for 12V LiFePO4, Lead-Acid, SLA, Gel, AGM, Calcium Battery, Charger with Anderson Connector Reverse Charge for RVs Campers Trailers Boats - LiTime 500A Battery Monitor with Shunt, 8V-120V Battery Monitor for RV Motorcycle Golf Cart Solar Panel with LCD Backlight Screen Buzzer Alarm, Capacity Percentage Time Power Voltmeter Display - TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing --- ## 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.in/products/542525836-12v-40a-dc-dc-battery-charger-with-mppt-solar-controller](https://www.desertcart.in/products/542525836-12v-40a-dc-dc-battery-charger-with-mppt-solar-controller) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-07-19*