D250SE

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.

Part no. 40-315

Battery support on the go

Smart alternator compatible

Achieve maximum power from your solar output

Charge service and starter batteries

Built-in temperature sensor

Description

12V | Dual input 20A charger with selectable charge voltages

The 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 and solar panel. 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. *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)

Features

20A fully automatic temperature compensated charging for batteries from 40-300Ah while you’re on the move
Dual input (solar and alternator in parallel)
Smart alternator compatible
Selectable lithium* and lead-acid mode
Solar panel regulator with Maximum Power Point Tracking (MPPT)
Battery separation replacing diodes and VSR relays
Selectable AGM option – 14.4V or 14.7V
Maximised charging for better battery life and performance
Temperature sensor to compensate for hot or cold conditions
Splash and dust proof (IP65)
Compatible with SMARTPASS 120, SMARTPASS 120S for the ultimate 140A power management solution
2-year warranty

D250SE-manual-low-UK-EN.pdf

D250SE-productsheet-low-UK-EN.pdf

Charging categoryDC charging
Input11.5–23 V, 25 A
Output14.4/14.7 V, 20 A, lead-acid battery types. 14.2 V, 20 A, LiFePO₄.
Battery chemistryLead acid; Lithium-ion
Battery types12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL; LiFePO₄
Battery capacity40–300 Ah
Back current drain*Corresponding to less than 1 Ah/month
Battery voltage12 V
Ambient operating temperature-20 ˚C to +50 ˚C (- 4 °F to +122 °F)
Ripple**Less than 4 %
Degree of protectionIP65
Gross weight (unit in box)0.9 kg
Dimensions (L x W x H)192 x 110 x 65 mm
Net weight (unit with cables)0.7 kg
MPPTYes
Warranty2 years

*) Back current drain is the current that drains the battery if the charger is not connected to the mains. CTEK chargers have a very low back current.
**) The quality of the charging voltage and charging current is very important. A high current ripple heats up the battery which has an aging effect on the positive electrode. High voltage ripple could harm other equipment that is connected to the battery. CTEK battery chargers produce very clean voltage and current with low ripple.
CTEK issues a limited warranty to the original purchaser of the product. Depending on the product, the limited warranty period will vary. The limited warranty is not transferable. The warranty applies to manufacturing faults and material defects. The warranty is void if the product has been handled carelessly or repaired by anyone other than CTEK or its authorized representatives. CTEK makes no warranty other than this limited warranty and is not liable for any other costs other than those mentioned above, i.e. no consequential damages. Moreover, CTEK is not obligated to any other warranty other than this warranty.

D250SE-manual-low-UK-EN.pdf

D250SE-productsheet-low-UK-EN.pdf

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