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5 Power management
The Void Scanner Wi-Fi box can be powered from the internal lithium-ion battery or from an optional external lithium-
ion battery.
Power can also be ‘hot swapped’ between internal and external batteries to ensure that scanning operations can
continue while the power source is changed.
5.1 Internal power
The Void Scanner Wi-Fi box contains a rechargeable lithium-ion battery which can provide up to
6.2 Ah at a nominal voltage of 14.4 Vdc. This equates to approximately six hours of scanning time.
When the internal battery drops beneath 10.8 Vdc, the Void Scanner Wi-Fi box shuts down.
Battery life is extended by keeping a partial charge on it when in frequent use. The battery can be damaged by deep
discharge and is fitted with protection to avoid this occurring. When the battery has run out of charge, use the
supplied battery charger to recharge it.
To power the Void Scanner Wi-Fi box from the internal battery, depress the red ‘Int. Power Source’ power button
on the side panel. This turns the Void Scanner Wi-Fi box ON. The power button illuminates when it is pressed,
providing the internal battery is sufficiently charged.
The power button changes from constant illumination to flashing when the battery voltage drops below 13.6 Vdc.
Press the ‘Int. Power Source’ button again to toggle the power OFF.
The Void Scanner Wi-Fi box shuts down automatically when the internal battery voltage drops below 10.8 Vdc.
However, if a scan is in progress and the voltage drops below 11.2 Vdc, the Cavity Profiler – VS software carries
out a controlled termination of the ongoing scan. In this case, the Cavity Profiler – VS project is automatically saved,
along with the terminated scan. See the Cavity Profiler – VS software and operations manual for details.
One of the fuses held on the internal panel is dedicated to the internal battery circuit. The fuse holder is labelled
‘Fuse (Int)’. The fuse holder carries a 3.15 A time-delay fuse: T3.15 AH 250 V.
To recharge the internal battery, connect the supplied battery charger. The battery charger supplied with the unit is
designed to meet the specific charging requirements of the lithium-ion battery. The battery charger operates at 2 A
and takes around three hours to fully charge the battery.
The internal battery will not power the Void Scanner Wi-Fi box when it is being recharged. If the battery charger is
connected to the Void Scanner Wi-Fi box, it charges the internal battery until the ‘Int. Power Source’ button is
depressed. At this point, if there is enough charge in the internal battery, the power button illuminates; power is
delivered to the Void Scanner probe and the charging process is paused.
When the ‘Int. Power Source’ button is toggled OFF, the battery charging resumes.
It is possible to charge the internal battery while an external power source is being used. See section 5.2.
5.2 External power
To power the Void Scanner Wi-Fi box from an external battery, connect a charged, external battery to the ‘Battery
In’ connector on the side panel. Depress the red ‘Ext. Power Source’ power button on the side panel. This turns the
Void Scanner Wi-Fi box ON. The power button illuminates when it is pressed, providing the external battery is
sufficiently charged.
