The CTEK D250SE is a fully automatic, 5 stage DC-DC charger that supplies up to 20A of power to any 12V lead acid or ­lithium leisure battery from 40–300Ah.

It has ­selectable charging algorithms for standard lead acid, AGM and lithium batteries and can use power through its dual input from the alternator fitted to your van and an optional solar panel controlled by MPPT. 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.

TECHNICAL SPECIFICATION

• Brand & Model - CTEK D250SE
• Alternator Technology - Standard & Smart
• Solar Panel Control Technology - MPPT
• Solar Input - 50 - 300 W (Max OCV 23V)
• Battery Voltage - 12V>12V
• Battery Chemistry - Lead Acid & Lithium-Ion
• Ambient Operating Temperature - -20˚C to +50˚C
• Input - 11.5 - 23V - 25 A
• Lead Acid Output - 14.4/14.7V - 20A
• Lithium Output - 14.2V - 20A
• Supported Battery Technology - 12V WET, MF, Ca/Ca, AGM, EFB, GEL & LiFePO₄
• IP Rating - IP65
• Approx. Dimensions - 192mm x 110mm x 65mm