CTEK D250S Dual, Manual, Page: 25 / 84

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EN • 25
TEChNICAL SPECIFICATIONS
Charger model
D250S DUAL SMARTPASS
Model number
D250S Dual, 1044 SMARTPASS, 1058
Max input voltage
22 V 22 V
Charging voltage
14.4 V at 25 °C/77 °F temperature
compensated
–
Charging current
20 A 80 A
Back current drain
<1 Ah/month <1 Ah/month
Ripple*
<4 % –
Ambient temperature
-20 °C to +50 °C (-4 °F to -122 °F),
output power is reduced automatically at high temperatures
Charger type
5-step fully automatic charging –
Battery types
All types of 12 V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity
40–300 Ah 75–800 Ah
Dimensions
197 x 93 x 49 mm (7¾ x 3⅝ x 2 inches) L x W x H
Insulation class
IP65 (splash and dust proof)
weight
0.73 kg/1,6 lbs 0.74 kg/1,6 lbs
MPPT**
Yes –
*) The quality of the charging voltage and charging current are very important. High current ripple heats the battery and ages
the positive electrode. High voltage ripple can damage other equipment connected to batteries. The battery chargers from CTEK
produce very high-quality voltage and current with low ripple
**) MPPT (Maximum Power Point Tracking) finds the best combination of supply current and voltage to maximize the power out-
put. This is especially important for Photovoltaic (Solar) Panels and trailer campers with wiring constraints.