--- product_id: 159636534 title: "CTEK D250SE, 20A, 12V Battery Charger For Starter And Service Batteries In RV, Truck And Overlanding Vehicles, Solar Battery Maintainer, 12V Lithium Ion Battery Charger And Smart Alternator Compatible" brand: "ctek" price: "VT154487" currency: VUV in_stock: true reviews_count: 10 category: "Ctek" url: https://www.desertcart.vu/products/159636534-ctek-d250se-20a-12v-battery-charger-for-starter-and-service store_origin: VU region: Vanuatu --- # 20A max charging power Supports 40–300Ah batteries MPPT solar panel regulator CTEK D250SE, 20A, 12V Battery Charger For Starter And Service Batteries In RV, Truck And Overlanding Vehicles, Solar Battery Maintainer, 12V Lithium Ion Battery Charger And Smart Alternator Compatible **Brand:** ctek **Price:** VT154487 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Charge smarter, adventure longer β€” never get left powerless! ## Quick Answers - **What is this?** CTEK D250SE, 20A, 12V Battery Charger For Starter And Service Batteries In RV, Truck And Overlanding Vehicles, Solar Battery Maintainer, 12V Lithium Ion Battery Charger And Smart Alternator Compatible by ctek - **How much does it cost?** VT154487 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/159636534-ctek-d250se-20a-12v-battery-charger-for-starter-and-service) ## Best For - ctek enthusiasts ## Why This Product - Trusted ctek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Weatherproof & Safe:** Splash and dustproof design with built-in temperature sensor ensures reliable, surge-free charging anywhere. - β€’ **Power-Packed 20A Output:** Fast, efficient charging for your 12V batteries, no matter the type. - β€’ **Solar-Optimized MPPT Tech:** Maximizes solar energy harvest for eco-friendly, on-the-go power. - β€’ **Smart Alternator Compatible:** Seamlessly works with modern smart alternators without draining your vehicle’s electronics. - β€’ **Smart Dual Battery Management:** Automatically balances charge between service and starter batteries to keep you moving. ## Overview The CTEK D250SE is a versatile 20A, 12V automatic battery charger designed for RVs, trucks, and overlanding vehicles. It supports lead-acid and lithium (LiFePO4) batteries from 40 to 300Ah, features MPPT solar regulation for optimized solar charging, and intelligently manages dual battery systems by redirecting charge to the starter battery when needed. Compatible with smart alternators and equipped with temperature sensors, it ensures safe, efficient charging in all conditions, backed by a 2-year warranty. ## Description The D250SE is a fully automatic, 5 step charger that supplies up to 20A of power to any 12V lead-acid or lithium* service battery from 40–300Ah. It has selectable charge algorithms for AGM and lithium* batteries and can use power through its dual input from alternator, solar panel and wind power. When the service battery is fully charged, the D250SE will automatically redirect maintenance charge power to the starter battery. The D250SE can maintain a stable output up to 20A to vehicles fitted with smart ECU controlled alternators and also has a temperature sensor for optimised charging, regardless of weather conditions. 12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4, *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP) Review: Simple, great split charger for a camper. - This split charger is so simple to fit, just crimp the eyes on the feed, supply and earth, bolt them onto the unit snd bob’s your uncle. You do need an ignition feed if your vehicle has a smart alternator and a connection to earth for the small black lead, if you are using calcium or AGM batteries. But all connected and working perfectly. Review: Good product - Dose what it says very easy to fit ## Features - Battery Support On the Go: The D250SE is a fully automatic, 5 step charger that supplies up to 20A of power to any 12V lead-acid or lithium* service battery from 40–300Ah. It has selectable charge algorithms for AGM and 12V lithium batteries (*12V LiFePO4). - Achieve Nominal Power from Your Solar Output: Solar Panel Regulator with Maximum Power Point Tracking (MPPT) optimizes available power. - Charge Service and Starter Batteries: When the service battery is fully charged, the D250SE will automatically redirect maintenance charge power to the starter battery. - Smart Alternator Compatible: Full functionality with all types of alternators. - Built-In Temperature Sensor: Allows you to achieve maximum charge levels no matter what the temperature. - Safe and Easy to Use: Splash and dustproof, designed to protect vehicle electronics and non-sparking, reverse polarity protected, and short-circuit proof. Clean voltage and current delivery ensures no surges or spikes. - Protects Sensitive Equipment: Unlike less-sophisticated chargers, there is no need to disconnect the battery; the D250SE is specially designed to not damage electronic systems. No overcharge or undercharge ever. - 2-year warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X4YTP1P | | Amperage | 20 Amps | | Best Sellers Rank | 132,994 in Automotive ( See Top 100 in Automotive ) 593 in Car Battery Charging Units | | Box Contents | D250SE | | Brand Name | CTEK | | Colour | Black | | Connector Types | Alligator Clips or Cigarette Lighter Adapter | | Current Rating | 20 Amps | | Customer Reviews | 4.3 4.3 out of 5 stars (168) | | EU Spare Part Availability Duration | 2 Years | | Global Trade Identification Number | 07340103403159 | | Input Voltage | 12 Volts | | Item Dimensions D x W x H | 10.9D x 19.3W x 6.6H centimetres | | Item Type Name | Battery Charger | | Item Weight | 700 Grams | | Manufacturer | CTEK | | Manufacturer Part Number | 40-315 | | Model Number | 40-315 | | Number of Ports | 2 | | Output Voltage | 12 Volts | | Unit Count | 1.0 count | ## Product Details - **Brand:** CTEK - **Colour:** Black - **Item weight:** 700 Grams - **Output voltage:** 12 Volts - **Product dimensions:** 10.9D x 19.3W x 6.6H centimetres ## Images ![CTEK D250SE, 20A, 12V Battery Charger For Starter And Service Batteries In RV, Truck And Overlanding Vehicles, Solar Battery Maintainer, 12V Lithium Ion Battery Charger And Smart Alternator Compatible - Image 1](https://m.media-amazon.com/images/I/51Xrvg-ulFL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Wake up to no lights in conversion and amber light is on solid what does this mean how can I fix it?** A: Please contact CTEK directly so we can assist you better. **Q: What voltage should i see if i test on the output for a lifepo4 charging profile (black signal wire to the +)? shouldnt it be 14.6?** A: Please see page 12 of the D250SE user Manual for lithium charge program details including voltages. **Q: Can i use the d250se to charge a 24ah lifepo4 battery?** A: Our D250SE is designed for all types of 12V lead-acid batteries (WET, EFB, Ca/Ca, MF, AGM and GEL) and 12V (4cells) Lithium-ion batteries (Li-FePO4, Li-Fe, Li-iron, LFP) between 40-300Ah. **Q: Is the housing weather proof? Can I mount this under the hood or do I need to wire it into the cabin?** A: The D250SE is IP65 rated (splash and dustproof). It is not waterproof and must be protected from the elements. The D250SE should be mounted with in 6 feet of your service batter/battery bank. This charger requires both a starter battery and service battery. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple, great split charger for a camper. *by C***1 on 29 November 2022* This split charger is so simple to fit, just crimp the eyes on the feed, supply and earth, bolt them onto the unit snd bob’s your uncle. You do need an ignition feed if your vehicle has a smart alternator and a connection to earth for the small black lead, if you are using calcium or AGM batteries. But all connected and working perfectly. ### ⭐⭐⭐⭐⭐ Good product *by J***. on 15 July 2022* Dose what it says very easy to fit ### ⭐⭐⭐⭐ Great charger but for the price it should have WiFi/bluetooth *by H***Y on 31 March 2024* Excellent it of kit. Replaced a split charge relay and my batteries thank me for it. Leisure batteries hold a much better charge now but the main difference is the health and charge state of the starter battery. It's an absolute no brainer purchase. I wish the additional bypass was a little cheaper however; seems to be disproportionately priced Vs the charger imo and marked down for no connectivity - for the price, no WiFi/Bluetooth is ridiculous. ## Frequently Bought Together - CTEK D250SE, 20A, 12V Battery Charger For Starter And Service Batteries In RV, Truck And Overlanding Vehicles, Solar Battery Maintainer, 12V Lithium Ion Battery Charger And Smart Alternator Compatible - CTEK SMARTPASS 120S with Installation Kit --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/159636534-ctek-d250se-20a-12v-battery-charger-for-starter-and-service](https://www.desertcart.vu/products/159636534-ctek-d250se-20a-12v-battery-charger-for-starter-and-service) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-06-06*