The CTEK Dual Input 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 features selectable charge algorithms for AGM and lithium batteries and can utilize 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 optimized charging, regardless of weather conditions.

With award-winning Swedish technology, the Dual Input D250SE allows you to enjoy your vehicle more with maximized battery capacity, making it the ideal charger for vehicles without access to a mains power supply.

Key Features

• Automatic Charging: Fully automatic 5-step charger supplying up to 20A of power.
• Versatile Input: Dual input from alternator, solar panel, and wind power.
• Battery Protection: Includes temperature sensor for optimized charging and maintenance.

Specifications

• Brand: CTEK
• Ambient Temperature: -20˚C to +50˚C (-4°F to +122°F)
• Positioning: Permanent installation/on board
• Input: 11.5-23V, 25A
• Output: 14.4/14.7V, 20A max for lead-acid battery types; 14.2V, 20A max for LiFePO₄
• Back Current Drain: Corresponding to less than 1Ah/month
• Battery Types: 12V, WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO₄
• Battery Capacity: 40-300Ah
• Insulation Class: IP65
• Ripple: < 4%
• Warranty: 2 Years

What's in the Box

• 1 x CTEK D250SE Dual Input Battery Charger
• 1 x User Manual

Size & Weight

• Carton Dimensions (W x L x H): 20 x 27.5 x 20cm
• Carton Weight: 2kg
• Product Weight: 0.7kg