10•EN
SITUATION
One alternator feeding a
Starter battery and a large
Service battery.
PROBLEM
The Service battery will take
a very long time to recharge
due to low alternator voltage
and restrictions in how the
alternator current is used. The
Solar panel is difficult to synch-
ronize with the alternator. Due
to these issues, the battery
will underperform and die
prematurely.
SOLUTION
The SMARTPASS separates
the two battery banks when
the engine is off. With the
engine on, the alternator
charges the service battery
with its maximum current until it
has tapered off to the D250S
DUAL max level. Then the
D250S DUAL charger finalizes
the charge. The recharge time
is minimized. Solar panels
are easily integrated and
synchronized if a D250S
DUAL is used together with the
SMARTPASS.
TIP 5
See Tip 1, Tip 2 and Tip 4
Wires that are connected to
both SMARTPASS and D250S
DUAL should be connected to
SMARTPASS.
SITUATION
230/110V charger for the
Service and Starter battery.
PROBLEM
The 230/110V charger
should charge both the Ser-
vice and the Starter battery,
and be synchronized with all
other energy sources.
SOLUTION
The single output 230/110V
charger is connected directly
to the Service battery. The
Starter battery is pulse char-
ged through SMARTPASS. The
solar panel will also charge
the Starter battery through
SMARTPASS.
TIP 6
See Tip 1, Tip 2, Tip 4 and
Tip 5
The battery cables of the
230/110V charger are con-
nected directly to the Service
battery.
12V
RECOND
RECOND
NIGHT
NORMAL
MODE
LARGE SERVICE BATTERY CONNECTING AC/DC CHARGERS
INSTALLATION SHEET 5 INSTALLATION SHEET 6
D250S DUAL
12V
+OUT
+IN
+IN
+IN +OUT
+OUT
SMARTPASS12V
D250S DUAL
12V
+OUT
+IN
+IN
+IN +OUT
+OUT
SMARTPASS12V
WARNING!
•Max 22V input
•Do not connect two solar
panels in series
WARNING!
•Max 22V input
•Do not connect two solar
panels in series
20015686F D250S Dual + SmartPass, Manual, Print file 001.indd 10 2011-12-20 11:19:37
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