Charging & Communication; Charge Mobile Computer - CipherLab RS31 Reference Manual

RS31 Mobile Computer
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 Snap-on Charging Cable or Charging Cradle along with a power adapter to
charge the mobile computer.
Your device can be charged as well when connected to a computer via USB cable; however,
charging from a USB port on a computer is slower than charging using a supplied Snap-on
Charging Cable or Charging Cradle because the voltage and amperage the computer
provides is lower than in the case of using a normal charging method.
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 for at least 30

minutes.
Backup battery: The backup battery is mounted on the main board. Its role is to temporarily
keep the mobile 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.
Please note that battery charging stops when ambient temperature drops below 0

exceeds 40°C.
OPERATION ON BATTERY POWER
When 802.11a/b/g/n,

Bluetooth v4.1 & v2.1+EDR and GPS are all enabled on battery power, the main battery
level will drop down substantially. Prolonged use of the display and continued scanning of
barcodes will also affect battery level.
In order to prevent system from shutting 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.
GSM/GPRS/EDGE/WCDMA/UMTS/HSDPA/HSUPA/HSPA+/LTE,
30
or
°C