Product Function | 7
1 PRODUCT FUNCTION
The BCDC1225D / BCDC1240D are three-stage, 12 V DC-DC battery chargers whereas
the BCDC1250D is a four-stage, 12 V DC-DC battery charger. All BCDC Dual Input In-vehicle
battery chargers operate from an alternator input of 12 V or 24 V and an unregulated 12 V
nominal solar panel input.
The input voltage of the BCDC1225D / BCDC1240D / BCDC1250D can be above, below or
equal to the output voltage making it ideal for charging an auxiliary 12 V battery where the
distance from the main battery may cause a significant voltage drop. The BCDC1225D /
BCDC1240D / BCDC1250D is also designed to isolate the main battery from the auxiliary
battery, to avoid over-discharging the main battery.
1.1 Display Panel
The front panel features 7 LEDs that display the Charge Profile and Charge Status.
1.2 Charge Profile LEDs
The Dual Input In-vehicle Battery Charger features 4 different charging profiles designed to suit
your battery’s charging requirements. Refer to the charging specifications stated by the battery
manufacturer, and the installation temperature chart before selecting the profile for your installation
(see
"Table 2.2.1: Charge Profile Selection"
The selected Profile LED will be on solid when the unit is ON and charging. A flashing profile LED
indicates that the unit is in standby mode and NOT charging.