CTEK D250S Dual User Manual

12
TECHNICAL SPECIFICATIONS
Charger model D250S DUAL SMARTPASS
Model number
1027 1058
Max input voltage
22V 22V
Charging voltage
14.4V at 25°C, temperature
compensated
-
Charging current
20A 80A
Back current drain
<1Ah/month <1Ah/month
Ripple*
<4%
Ambient
temperature
-20°C to +50°C, output power is reduced automatically at high
temperatures
Charger type
5-step fully automatic charging
Battery types
All types of 12V lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL)
Battery capacity
40-300Ah 75-800Ah
Dimensions
197 x 93 x 49mm (L x W x H)
Insulation class
IP65 (splash and dust proof)
Weight
0.73kg 0.74kg
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) nds the best combination of supply current and
voltage to maximize the power output. This is especially important for Photovoltaic (Solar)
Panels and trailer campers with wiring constraints.
CABLE DIMENSIONS
Recommended minimum cable dimensions in mm²
MIN CABLE DIMENSIONS
UNIT CABLE 0.5m 1m 2m 5m 10m
+IN
4mm
2
4mm
2
4mm
2
6mm
2
10mm
2
+OUT
4mm
2
6mm
2
10mm
2
Lead to ground
1.5mm
2
1.5mm
2
1.5mm
2
1.5mm
2
1.5mm
2
Connection Unit*
4mm
2
6mm
2
10mm
2
10mm
2
10mm
2
+IN
10mm
2
16mm
2
16mm
2
25mm
2
25mm
2
+OUT
10mm
2
16mm
2
16mm
2
*Use included connectors if possible. The cable dimensions are if the units are mounted at dierent locations.
D250S/D250S DUAL
SMARTPASS

CTEK D250S Dual Specifications

General

Charging Current	20 A
Operating Temperature	-20°C to +50°C
Protection Class	IP65
Battery Capacity	40–300 Ah
Battery Types	Lead-acid (Wet, MF, AGM, GEL)
Protection Features	Reverse polarity protection, over temperature protection
Input Voltage	11.5-23V, DC
Charging Stages	5-stage, Automatic