CTEK D250SE, 12V, 20A, Dual Battery Management System With Solar Control

Q: Wake up to no lights in conversion and amber light is on solid what does this mean how can I fix it?

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?

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?

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?

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.

4.4/5

Product ID: 274024820

Secure Transaction

12 interest-free installments with tabby

Details

Brand
CTEK
Colour
Black
Product dimensions
10.9D x 19.3W
Item weight
700 Grams
Output voltage
12 Volts

⚡20A high-power charging

☀️MPPT solar optimization

🌡️Built-in temperature sensor

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

Description

⚡ Charge smarter, live freer — power your adventures with CTEK D250SE!

DUAL BATTERY MASTERY - Automatically balances charge between service and starter batteries for seamless reliability.
SOLAR SMART MAXIMIZER - MPPT technology extracts maximum energy from your solar panels for unstoppable power.
POWER UP WITH PRECISION - Delivers up to 20A to charge 12V lead-acid or lithium batteries efficiently.
SMART ALTERNATOR FRIENDLY - Compatible with all alternator types, ensuring smooth integration with your vehicle’s system.
TEMPERATURE TUNED CHARGING - Built-in sensor adapts charging to ambient conditions, maximizing battery lifespan.

The CTEK D250SE is a compact, 20A dual battery management system designed for 12V lead-acid and lithium batteries (including LiFePO4). Featuring MPPT solar regulation, smart alternator compatibility, and a built-in temperature sensor, it optimizes charging efficiency and battery health on the go.

Specifications

Manufacturer	CTEK
Brand	CTEK
Model	CTEK D250SE (40-315), DUAL INPUT 20A CHARGER WITH SELECTABLE CHARGE VOLTAGES
Product Dimensions	19.3 x 10.92 x 6.6 cm; 700 g
Item model number	40-315
Exterior	Machined
Manufacturer Part Number	40-315
OEM Part Number	40-315
Item Weight	700 g

Have a Question? See What Others Asked

Wake up to no lights in conversion and amber light is on solid what does this mean how can I fix it?

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?

Can i use the d250se to charge a 24ah lifepo4 battery?

Is the housing weather proof? Can I mount this under the hood or do I need to wire it into the cabin?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

AED 1995

Duties & taxes incl.

UAEstore

Free Shipping

with PRO Membership

Delivery Partners: iMile, Transcorp

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

12 interest-free installments with tabby

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews