User's Manual

9
Chapter 1 Quick Start
1.2.
CHARGING & COMMUNICATION
1.2.1.
CHARGE MOBILE COMPUTER
The main battery may not be charged to full for shipment. When you first receive the kit
package, you will need to charge the main battery to full before using the mobile
computer. You may use the USB Snap-on USB Cable or Charging Cradle along with a
power adapter to charge the mobile computer.
Charging Time
 Main battery: The main battery powers the mobile computer to work. It takes approximately 4
hours to charge an empty main battery to full. The charging LED above the screen (located on
the right) will light up in red while charging and will turn green when charging is complete.
 When the main battery is removed, RTC retention will be maintained.
 Backup battery:
The backup battery is mounted on the main board. Its role is to temporarily
keep the m
obile computer in suspension when the main battery is drained out so data in
DRAM will be retained. The backup battery takes approximately 3.5 hours to charge to full by
the main battery or power adapter.
Charging Temperature
 It is recommended to charge the battery
at room temperature (18°C to 25°C) for optimal
performance.
 Battery charging stops when ambient temperature drops below 0°C or exceeds 40°C.
Operation on Battery Power
 When 802.11b/g, GSM/GPRS, Bluetooth and GPS are all enabled on battery power, the main
battery charge will drop down substantially.
 In order to prevent system shut down
after the battery is drained out, we suggest that you
keep a fresh battery for replacement at all times,
or connect the mobile computer to an
external power.