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battery charger operates at 2 A and takes around three hours to fully charge the battery.
5.3 Hot swapping power sources
The VS+ has two power options: the internal battery and an optional external battery. Either or both power sources
can be used to power the system. During scanning operations it is also possible to ‘hot swap’ between these sources
so that one battery can be on charge while the other is in use. Alternatively, both power sources can be left powered
ON to ensure the maximum scanning time is available.
5.3.1 Example 1
For example, if a scan is in progress and the internal battery voltage is low, the power source can be swapped to
an external source to ensure that the scan is not interrupted by a power failure.
This can be done while the scan is ongoing and powered from the internal battery. Connect a charged, external
battery to the VS+ and depress the External Power Source button, ensuring that it is illuminated. Power is now
drawn from the external power source, assuming that it has a higher voltage than the internal battery.
Once the external battery is powering the unit, two options are available:
1. The Internal Power Source button can be left ON if required to ensure that both power sources are available.
Once the two power sources have balanced, power is drawn from both batteries.
2. Alternatively, the Internal Power Source button can be toggled OFF. At this point, the internal battery can
be charged, if required.
5.3.2 Example 2
Similarly, if a scan is in progress and an external power source is in use, the power source can be switched back
to the internal battery. Depress the Internal Power Source button, ensuring that it is illuminated. In this case, the
External Power Source button can either:
•
be left powered ON, or
•
be toggled OFF, and the external power cable disconnected from the VS+.
