Rice Lake Intercomp PT300 Wheel Load - Manual (Page 8)

PT300 Users Manual
Rev E, April 1999
Page 8 of 21
Batteries / Charging
This scale can be used while it is charging.
Batteries: 6 - 1.2 volt nicads.
Battery Life: Approximately 5 years. (1000 charge/discharge cycles).
Battery duration between charges: Approximately 8 hours of continuous use
before the low battery indicator comes on, and approximately 2 hours after that before
the scale shuts itself off. Low Batt. indicator comes on when the battery voltage gets
down to approximately 7.3 volts.
Automatic Shutoff: The scale turns itself off when the battery voltage gets down to
approximately 6.3 volts.
Charging Voltage: 11.5 volts - 14.5 volts DC. Protection is provided for accidental
reversal of the charging connections.
Charging Current: Starts at approximately 300mA and drops down to 50mA
after 8 hours.
Charging Time: 8 hours if the batteries are discharged to the point
of turning off the scale.
WARNING: Do not plug the charger in while there are standard alkaline cells
inside. This could result in damage to the batteries and your scale.
Charging the batteries
The batteries can be charged using 120v AC or 11.5V - 14.5V DC. For AC charging
use the plug in transformer provided. Connect the black lead from the charging cable
to the (-) terminal and the red lead to the (+) terminal.
For DC charging, connect the red lead to positive voltage and the black lead to
ground.