VEMCO – VR100 Receiver Operating Manual – Page 25
3.3 MAINTENANCE
3.3.1 Charging Battery
When the internal gel-cell battery is fully charged, it will power the VR100 receiver for approximately 12
hours with the backlight off and under normal operating conditions. Operating time with the backlight on
is shorter. The VR100 can also be powered while the battery is being charged, allowing the receiver to
continue to operate during the charging process.
Follow the steps listed below to charge the VR100’s battery:
1.
Place the receiver away from direct heat sources (including direct
sunlight) and in a horizontal position so the front panel is facing up.
It is best to charge the VR100 at room temperature.
2.
Select a battery charger based on the power supply type, either AC
or DC. Both chargers are pictured on this page. The AC charger
may require an adapter plug.
3.
Plug the metal connector on the supplied battery charger into the
Power connector on the side of the VR100 case (see section 3.1.2).
The connector on the charger cable will only fit the Power
connector on the receiver and only in the correct orientation.
4.
Plug the other end of the AC battery charger into a 50/60 Hz, 100 to
240V AC power source, or the DC battery charger into 12VDC power source.
The VR100 receiver is equipped with internal sensors that determine its position and internal temperature.
These sensors prevent the charging process if the receiver is positioned at a steep angle or upside down, or
if the internal temperature of the receiver is excessive. If the VR100 is tilted, the STATUS and LOW
BATT lights (also called LEDs) on the front panel will both flash and charging will not occur. To charge
the battery when both lights are flashing, unplug the VR100 charger and reposition the VR100 with the
front panel facing up before plugging the charger back into the power supply (see section 3.3.1.1). If the
internal temperature exceeds a safe limit, battery charging will be disabled until the receiver has cooled,
then it will automatically resume.
The VR100 battery charges in two stages, Fast and Float. The Fast Charge mode quickly
charges the battery most of the way, and the Float Charge
mode slowly charges it the rest of the way. The battery can
be left in Float Charge mode for an extended period without
damaging the battery. When the "STATUS" light is on
steady, the unit is in Fast Charge mode. When the light
begins flashing, the unit is mostly charged and is in Float
Charge mode. The unit can be used as soon as it enters Float Charge mode,
but it will not necessarily last the entire 12 hour battery life. To achieve the
12 hour battery life, the unit should be charged for 14 hours or more at room
temperature. At high ambient temperatures, charging may take longer
because the VR100 turns the charger off and on to control the internal
temperature.
The VR100
battery fully
charges in
14 hours at
room
temperature.
AC Battery Charger
DC Battery Charger
