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.

40-315

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Description


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, 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. *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)

Features

  • 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

Technical data

Battery capacity
40–300 Ah
Charging category
DC charging
Back current drain*
Corresponding to less than 1 Ah/month
Back Current Drain TEXT
*) 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.
Battery voltage
12 V
Battery chemistry
Lead acid (AGM, GEL, EFB, MF, CaCa); Lithium (12 V LiFePO₄)
Ambient operating temperature
-20 ˚C to +50 ˚C (- 4 °F to +122 °F)
Input
11.5–23 V, 25 A
Output
14.4/14.7 V, 20 A, lead-acid battery types. 14.2 V, 20 A, LiFePO₄.
Ripple**
Less than 4 %
Ripple TEXT
**) 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.
Battery types
12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL; LiFePO₄
Ingress protection
IP65
Dimensions (L x W x H)
192 x 110 x 65 mm
Net weight (unit with cables)
0.7 kg
Gross weight (unit in box)
0.9 kg
MPPT
Yes
Warranty
2 years
Warranty headline
Limited Warranty
Warranty details
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.