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18
INTERNAL BATTERY (OPTION 02)
The power switch has four positions, OFF, ON, CHG (Charge) and AUX (Auxiliary). The VR60
receiver with Option 02 installed is powered with an internal 12 volt Sealed Lead Acid battery.
The ON position will power the receiver from the internal battery. The internal battery receives a
float charge if an external power supply is connected when the power switch is in the ON position
(
do not
connect the external power with the power switch in the ON position).
To charge the battery, connect the AC charger module to the front panel power jack, with the power
switch in the ON or CHG position. With the switch in the CHG position, approximately 10 hours
are required to bring the battery up to full charge (battery voltage 13.5 volts). The battery may also
be charged from any other DC power supply, such as an automobile battery and alternator system
(min. 15 VDC, max. 18 VDC). An internal regulator will limit the charging current to
approximately 300 mA (a 1A fuse is located on the charge/regulator circuit board). When the
internal battery is being charged the vent screw (white) on the side of the case
must
be opened.
Use the AUX position on the switch to power the VR60 receiver from an external 12 volt Lead
Acid battery without float charging the internal battery.
The basic receiver will run for approximately 100 hours between charges of the internal battery. If
the decoder option is installed, battery life is shortened to approximately 50 hours between charges.