In vehicle charging:
The IDC25 is designed to alter the initial voltage of your vehicle’s alternator output (input voltage 9-32Volts) in order to produce
the voltage selected via the mode setting on the IDC25 (for example: setting the mode to GEL setting will
allow for the charging voltage of approx. 14.2 Volts when charging and a float voltage of 13.8 Volts).
When charging the deep cycle or sealed battery is it recommended to always have the IDC25 set to GEL.
If the charger has reached a ‘float mode’, then it is common for the voltage display on the Thumper to
drop to as low as 13.2Volts under load before the charger will re-active. This can sometimes take several
minutes to activate after the vehicle alternator has begun charging again.
If you are unsure on what setting you should use, please contact our team on 08 8391 3121 before use.
Vehicle isolator:
The IDC25 will disconnect the DC battery box from the starter battery when your vehicle’s charging voltage drops below 12.7
Volts, essentially working as the in-vehicle battery isolator.
The vehicles starter battery must reach approx. 13.2Volts and hold this voltage for approx. 90seconds in order to engage the
IDC25 and allow for charge to begin. If by chance, your vehicle’s alternator voltage drops below 12.7Volts when travelling or does
not hold > 13.2Volts when starting the vehicle for at least 60-90 seconds, then it would be recommended to install the ignition
activated charge line (connection via the 2pin socket as seen in image 3). The Thumper battery box is fitted with a 2pin socket
which is designed solely for the use of the ignition activated charge line. If wired to the vehicle, this connector will allow you to
‘over-ride’ the voltage activation on the IDC25 and instead will allow the DC charger to begin its charge when the ignition has
been switched ON. The DC charger will then isolate the Thumper battery box from the main starter battery when the ignition has
been switched OFF.
This ‘ignition activated’ connection is NOT required in 99% of vehicles (only vehicles with a voltage below
13.2Volts on start up or vehicles that the alternator voltage falls below 12.7Volt for a period of 60
seconds or more when running will need to install this ‘over-ride ignition activated’ line).
Please contact our team for more information or to purchase this loom for your vehicle 08 8391 3121.
The Thumper DC battery box has been provided with a full wiring loom for your vehicle installation.
The wiring loom provided is 8B&S twin core automotive cable. The twin core cable will run direct from your main starter battery
(or bolt supplied off main battery), through a circuit breaker, to the location of your Thumper unit. The vehicle charge line should
always connect into the Thumper battery box via the Anderson labelled ‘Alternator Input’. Failure to connect the vehicle charge
line to this particular Anderson will result in the Thumper being connected directly to the main starter battery (not isolated),
which in turn will run the risk of flattening your starter battery).
MPPT solar charging:
The IDC25 fitted to your Thumper DC battery box, offers a MPPT Solar Regulator rated to 25 Amps. The regulator has been
hardwired into your Thumper battery box via an independent 50 Amp Anderson connector labelled ‘Unregulated solar input’.
This outlet has been designed solely for the use of an unregulated solar panel (approx. input capacity 400-450 watts). The input
voltage (VOC) of the solar panel must be a minimum of 9 Volts in order to activate the solar charger in the DC unit and must not
exceed 24 Volts DC.
This connection should not be used for any other appliance and will NOT provide an output for running appliances.
Installing a battery into your box:
When installing the battery within your Thumper battery box, it is recommended to have the terminals
of the battery positioned at the REAR of the box. This will allow for the terminals of the battery to be
positioned on the opposite side from the sockets when the battery box lid is on. See image 4
The connection to the battery is as simple as three cables; a positive cable, a negative cable and
the heat- sync wire.
1. Connect the positive (red) cable of the battery box to the positive (red) connection of your
battery
2. Connect BOTH the negative (black) cable from the battery box AND the black heat sync
wire to the negative terminal of your battery. NOTE: Do not cut the heat-sync cable if you
choose not to use it
For any additional information or questions you may have about your Thumper, please contact Blue Apple on
08 8391 3121.
