CTEK D250S Dual User Manual

12 • EN
SMARTPASS LAMP FUNCTION
LAMP STEADY FLASHING
Power lamp
Unit ready to use
2
Alternator battery
consumption lamp
Engine running Too high current through relay
1
Service battery
charging lamp
Charging Service battery
4
Service battery
consumption lamp
Consumers powered by Service battery Too high current through relay
3
Alternator battery
charging lamp
Alternator battery maintained by Service battery Too high current through relay
SMARTPASS LAMP INDICATION DURING NORMAL OPERATION
2
1 4
3
EXPLANATION
High current from alternator to service battery. Consumer powered by alternator
Reduced current from alternator to service battery. Consumer powered by alternator
Consumer powered by alternator. Battery charged by D250S DUAL charger
Pulse maintenance of starter battery

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