---
product_id: 159636534
title: "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: "282184 Ft"
currency: HUF
in_stock: true
reviews_count: 10
url: https://www.desertcart.hu/products/159636534-d250se-20a-12v-battery-charger-for-starter-and-service-batteries
store_origin: HU
region: Hungary
---

# 20A max charging current Supports 12V lead-acid & LiFePO4 batteries MPPT solar panel regulator 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:** 282184 Ft
**Availability:** ✅ In Stock

## Summary

> 🔌 Charge smarter, roam farther — never get left powerless!

## Quick Answers

- **What is this?** 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?** 282184 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/159636534-d250se-20a-12v-battery-charger-for-starter-and-service-batteries)

## 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

- • **Power Up Anywhere:** Delivers up to 20A to service batteries from 40–300Ah for reliable on-the-go charging.
- • **Safe & Hassle-Free:** Splashproof, reverse polarity protected, and compatible with smart alternators—protects your vehicle’s sensitive electronics.
- • **All-Weather Performance:** Built-in temperature sensor ensures optimal charging regardless of climate conditions.
- • **Smart Battery Management:** Automatically redirects charge to starter battery once service battery is full—no manual switching needed.
- • **Solar-Optimized Charging:** Integrated MPPT regulator maximizes solar energy harvest for efficient, eco-friendly power.

## Overview

The CTEK D250SE is a versatile 12V battery charger delivering up to 20A with advanced 5-step charging algorithms for lead-acid and LiFePO4 batteries. Featuring MPPT solar regulation, smart alternator compatibility, and temperature sensing, it ensures efficient, safe charging for RVs, trucks, and overlanding vehicles. Its automatic battery prioritization and rugged design make it the ultimate power companion for modern adventurers.

## 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 |
| Best Sellers Rank | 41,538 in Automotive ( See Top 100 in Automotive ) 275 in Car Battery Charging Units |
| Department | Unisex-Adult |
| Guaranteed software updates until | unknown |
| Item model number | 40-315 |
| Manufacturer | CTEK |
| Product Dimensions | 19.3 x 10.92 x 6.6 cm; 700 g |

## 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

![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)

## 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

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**Shop now:** [https://www.desertcart.hu/products/159636534-d250se-20a-12v-battery-charger-for-starter-and-service-batteries](https://www.desertcart.hu/products/159636534-d250se-20a-12v-battery-charger-for-starter-and-service-batteries)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-22*