Manual

3
1 PRODUCT FUNCTION
The BCDC1250D is a four-stage, 12V DC-DC battery charger that operates from an
alternator input of 12V or 24V and a 12V nominal solar panel input. The input voltage of
the BCDC1250D can be above, below or equal to the output voltage making it ideal for
charging an auxiliary 12V battery where the distance from the main battery may cause a
signifi cant voltage drop. The 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 to display the charge profi le and charge status.
50
Figure 1.1.1 - The BCDC1250D Front Panel
1.2 Charge Profi le LEDs
The Dual Input In-vehicle Battery Charger features 4 different charging profi les
designed to suit your battery’s charging requirements. It is recommended to
refer to the charging specifi cations stated by the battery manufacturer and the
installation temperature chart below (Figure 1.2.1) before selecting the profi le for
your installation.
The selected Profi le LED will be on solid when the unit is ON and charging. A
fl ashing profi le LED indicates that the unit is in standby mode and NOT charging.
Auxiliary Battery Location
Maximum Battery
Voltage Specifi cation
Cabin
Install
Engine Bay
Install
14.6 AA
15.0 BA
15.3 CB
14.5 (LiFePO
4
) Li Not Recommended
Check the manufacturer’s data for your battery and ensure that the ‘Maximum’ voltage
of the profi le you select does not exceed the manufacturer’s recommended maximum
charging voltage. If the ‘Maximum’ voltage is too high for your battery type, please select
another charging profi le.
25
75 F
50
+
120 F
+
Figure 1.2.1 - Charge Profi le Selection