D250s dual – CTEK SMARTPASS User Manual
Page 5
EN
EN • 7
wiring system; or an equipment-grounded conductor should
be run with circuit conductors and connected to equipment-
grounded terminal or lead on battery charger. Connections
to battery charger should comply with all local codes and
ordinances.
D250S DUAL
The D250S Dual has 2 inputs. The Service battery will be
charged from the alternator, solar panel, or both in combina-
tion. The solar panel adjusts itself to the Starter battery voltage.
The Starter battery will be charged and maintained directly by
the solar panel if the Service battery is fully charged.
D250S DUAL
FEATURES:
• Multi-step 20 A temperature compensated battery charging
and battery maintenance.
• Battery separation of Starter and Service batteries.
• Maximum power point tracking for solar panels charging
the Service battery.
• Two power source inputs (alternator, solar, wind, Supply
battery and other).
• Coordination of the two inputs, allowing parallel operation.
• The solar input will also maintain the Alternator battery.
• Built in battery guard for the Alternator battery.
D250S DUAL
12V
+OUT
+IN
+IN
Temperature sensor
L:2 m/6,5 feet
Service
battery +
Alternator
battery +
Solar panel +
Vehicle ground/
Solar panel –