CTEK 250TS Manual page 3

FUNCTIONALITY
The D250TS has three operating modes:
1. 4-step charging of a Starter battery.
2. When Starter battery is fully charged: Equalization of a Service battery on the Input side. This
function provides the possibility to connect 12 V consumers to the 1st battery in the Service
battery string.
3. Monitoring. The D250TS now monitors if the Starter battery needs charging (priority) or the
Service battery needs equalization.
ALTERNATOR
B-3
DC/DC
24 V/1CA
GNC
IN
B-1
SERVICE SERVICE
BATTERY BATTERY
20015884C D250TS, Manual, Print file 002.indd 5
STARTER MOTOR
A
c2
OUT
B-2
c1
STARTER STARTER
BATTERY BATTERY
EN • 5
2011-12-20 13:27:13