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 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.

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

Specification
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, lead-acid battery types.
14.2V, 20A max, 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