CTEK D250SE: The Ultimate Battery Charger for Vehicles

Price: $328.07 - $283.80
(as of May 21,2023 04:26:04 UTC – Details)

CTEK D250SE

Battery charging on the go

CTEK’s D250SE is a fully automatic, 5-step on-board battery charger and maintainer. It supplies up to 20A of power to any 12V lead-acid or lithium (LiFePO4) service battery from 40–300Ah and has selectable charge algorithms for AGM and lithium batteries. It’s fully compatible with all types of alternator, including smart alternators, and will automatically redirect maintenance charge power to the starter battery when the service battery is fully charged. The D250SE also has a built-in solar panel regulator with Maximum Power Point Tracking (MPPT) to optimize the available power. The D250SE is compatible with CTEK’s SMARTPASS 120S for the ultimate onboard charging system.

Maximizes available power

CTEK D250SE is compatible with Smart Alternators, providing up to 20A of power whilst on the move. The device also maximizes solar output by including a Solar Panel Regulator with Maximum Power Point Tracking (MPPT) technology. Additionally, the device has a Built-In Temperature Sensor which allows you to maximize charge levels regardless of the temperature.

• Fully automatic 20A 5-step battery charger and maintainer
• Compatible with lead-acid and lithium (LiFePO4) batteries
• Works with all types of alternator, including smart alternators
• Solar panel regulator to optimize available power
• Built-in temperature sensor
• Splash proof, dustproof and short circuit proof
• Non sparking, reverse polarity protected clamps
• Automatically redirects power to starter battery when service battery is fully charged

The ultimate off grid charger

CTEK D250SE features 20A fully automatic temperature-compensated charging and dual input for alternator and solar in parallel. It is ideal for use in overland vehicles, RVs, and trucks.

Accessories Available to Take Your Chargers to the Next Level (Sold Separately)

The CTEK SMARTPASS 120S is a 120A Power Management Solution that distributes, controls, and maximizes the available energy from your alternator to power service batteries and consumers. SMARTPASS 120S handles all 12V batteries between 28–800Ah. The SMARTPASS 120S’s Battery Guard function ensures that critical equipment such as radio, emergency lights, and navigation systems always have power and take priority when the voltage on the service battery is low disconnecting non-critical consumers. The unit’s Battery Guard will protect your service battery from total discharge and built-in over-temperature protection reduces charge current before the battery temperature gets too high. SMARTPASS 120S is compatible with the D250SA and D250SE 20A onboard chargers.

CTEK D250SE Technical Specifications

• Input: 11.5–23V, 25A
• Output: Max 14.4/14.2/14.7V, 20A max
• Back current drain: Less than 1Ah/month
• Ambient temperature: -4°F to +122°F (-20°C to +50°C)
• Battery types: 12V: WET, EFB, Ca/Ca, MF, AGM, GEL, LiFePO4
• Battery capacity: 40–300Ah
• Insulation class: IP65 (splash and dustproof)

By choosing CTEK D250SE, you can achieve nominal power from your solar output,