Connecting the Battery Charger
The DCDC will not turn on without a D+ ignition cable. When connected, the DCDC will turn
on when the ignition is on. This means that even if your engine is not on, the starter battery
will immediately be used to power the DCDC and start charging the house battery. It is
recommended to have the vehicle completely on.
Note:
battery charger has isolated input and output voltages, which means that the output voltage can
be kept stable without interference from the input circuit. When connecting the signal wires, the battery
charger will be on a stable 12VDC voltage.
1.
Identify the correct side of the DCDC corresponds to the correct battery. The Input side will be
the Alternator/Starting Battery and the output side will be the Auxiliary/House Battery.
IMPORTANT: A D+ ignition cable is required to turn the unit on. Although the D+ terminal is
in the output side, this will be connected to the INPUT Alternator/Starter Battery common
positive.
Alternator / Starter Battery Input Side
Output / House Battery Side
2.
Unscrew the terminals, connect the common negative and common positive wires from the
starter battery to the input of the DCDC in the appropriate negative and positive terminals. Then
screw the terminals for a tight fit. Refer to Figure 3 and Figure 4.
