CTEK D250SE dual DC-DC charger
CTEK D250SE dual DC-DC charger
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CTEK D250SE dual DC-DC charger
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 flooded, AGM and lithium batteries and can use power from both the alternator and a solar panel. 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.
The D250SE is designed for use with solar panels rated at up to 300W but won't be damaged if a larger panel is connected – as long as the voltage from the panel is no more than 23V. (Open Circuit Voltage cannot exceed a MAXIMUM of 23V)
Connecting a larger panel is actually a good way of compensating for poor performance on cloudy days!
The D250SE also features a battery maintenance function which sends 3-second pulses to the starter battery every 15 seconds. The current will vary according to the amount of power coming from the solar panel and the voltage at the starter battery.
| MANUFACTURER: | CTEK |
|---|---|
| Article No.: | 40-315 |
| Charger Category: | DC Charging |
| Suitable for use with smart alternators?: | Yes |
| Input Voltage - Volts: | 11.5 / 23 |
| Output voltage - Volts: | Max 14.4V (14.7V in AGM mode) |
| Max. charging current - Amps: | 20 |
| BACK CURRENT DRAIN: | Less than 1Ah/month |
| Battery Temperature Sensor: | YES |
| Charging Ports: | 1 |
| Input from alternator - V: | 11.5v TO 23v |
| Input from solar panel - V: | 11.5V to 23V |
| Conventional alternator cut-in: | >13.1V, for 5 sec. (engine running, alternator charging) |
| Conventional alternator cut-out: | <12.8V, for 10 sec. (engine running, alternator not charging) or service battery voltage > starter battery voltage |
| Smart alternator cut-in V: | >11.8V, for 5 sec. (engine running, alternator charging) |
| Smart alternator cut-out V: | <11.4V, for 10 sec. (engine running, alternator not charging) or service battery voltage > starter battery voltage |
| Suitable for battery types: | All 12V lead-acid batteries including: Wet, A.G.M, gel, calcium and maintenance free + LiFePO4 lithium batteries |
| Max. power input from solar panel - Watts: | 300 |
| Solar regulator type: | MPPT |
| Cooling method: | Convection cooled |
| Operating temperature range - °C: | minus 20 degrees C to plus 50 degrees C Automatic reduction of power at high ambient temperature. |
| Power reduction: | 30 degrees C 16A, 50 degrees C 13A |
| Enclosure class: | IP65 (splash and dust proof) |
| Notes: | This charger can only be used with solar panels that have a peak voltage maximum of upto 23V. Please ensure that your panel is compatible before purchasing. |
| Protections: | Temperature compensated charging, Reverse Polarity protection |
| Certification: | Fully certified for use in vehicles |
| Dimensions (L x W x H) - mm: | 192 x 110 x 65mm |
| Warranty - years: | 2 |
| Product Weight Net: | 1.100 |
| weight: | 1.320 |
