CTEK D250S Dual, Manual, Page: 22 / 84

SITUATION
Connection of consumers to the system.
PROBLEM
Many batteries die prematurely if they
are discharged too much. Too little
power might be delivered to critical
consumers, like navigation, radio and
emergency lights.
SOLUTION
Critical consumers are connected
directly to the battery. Others, such as
refrigerator, main light and heating are
connected to the SMARTPASS. When
the Service battery is down to a critical
level, then the SMARTPASS disconnects
these noncritical consumers.
TIP 7
See Tip 1, Tip 2, Tip 4, Tip 5 and Tip 6.
High current consumers (>80 A) should
be connected directly to the Service or
Starter battery.
22 • EN
12V
RECOND
RECOND
NIGHT NORMAL
MODE
D250S DUAL
12V
+OUT +IN
+IN
+IN +OUT
+OUT
SMARTPASS 12V
INSTALLATION ShEET 7
CONNECTING CONSUMERS
WARNING!
•Max 22 V input
•Do not connect two solar
panels in series