User's Manual

Chapter 1 Introducing CPT-8500 7
1.3 Features
1.3.1 Power
¾ Main Battery
The CPT-8500 is powered by a rechargeable 3.7 V/4000 mAh Li-ion battery pack, and it
takes approximately four hours to fully charge it. During normal operation, the terminal can
work for up to 500 hours.
For power saving purpose, always turn off the backlight while working in a well-lit area.
When the backlight is on for extended periods of time, the main battery will become low
sooner than expected.
The smart battery icon on the LCD screen shows the status of power consumption. There
are two ways to monitor a low battery charge or discharged battery from the screen.
 Examine the level of the 4-bar battery icon
 Monitor voltage level (see 4.1.5 Power
)
¾ Backup Battery
In addition, one 3.0 V/7 mAh rechargeable Lithium button cell on the main board retains
data in SRAM and maintains the running of the real-time clock and calendar. It takes at least
twenty-four hours to fully charge the backup battery.
For a fully charged backup battery, it can last for at least one week. However, it is not
necessary to fully charge the backup battery for the terminal to work.
 Monitor voltage level (see 4.1.5 Power
)
¾ Initial Charging
The main battery must be fully charged before using the terminal for the first time. Because
the internal backup battery is constantly charged from the main battery, the initial charging
requires installing the battery pack to the terminal and then seating the terminal in the cradle
for charging. This will have main/backup batteries charged at the same time.
Note: For initial charging, we recommend that you install the main battery to the terminal
and seat the terminal in the cradle to charge the main/backup batteries at the same
time. It requires approximately 4 hours fully charging the main battery.