NEXCOM MRC 2200 User Manual

Page 49

Chapter 4: Managing Power

MRC 2200 User Manual

Charging the Battery Pack

Note: The battery will not be charged in a temperature below
0 °C (32 °F). It is also recommended not to charge the battery
when surrounding temperature is above 45 °C (113 °F).

When the surrounding temperature gets above 55°C (131 °F),
the battery indicator will flash in red and may automatically
shut-down the charging process to prevent battery damage.

Do not disconnect the AC adapter unless the battery is fully
charged; A partially charged battery may shorten the life of the
battery.

When the battery power level is low, the power indicator (blue) and bat-
tery indicator (Green) will blink to alert for action. To charge the battery
pack, connect the AC adapter and the tablet PC to an electrical outlet.
The Battery Charge Indicator located on the tablet PC should glow in am-
ber lighting to indicate charging is in progress. It is suggested to keep the
tablet PC power off while the battery is charging.
When the battery is fully charged, the Battery Charge Indicator will turn
green. Charging process of a Li-Ion battery usually completes in 3 hours
under the temperature of 25°C. Longer charging time may be required in
a lower temperature.

NOTE: The battery level may become lower even it is fully
charged due to the self-discharging process. It is a normal situ-
ation and could be happened whether or not the battery pack
is installed in the tablet PC

Failure to charge the battery at least once a month may reduce
the battery’s ability to charge/re-charge.

Initializing the Battery Pack

Initializing is a process of fully charging a battery pack, discharging it, and
then fully charging it again. The whole process may take several hours.

Two circumstances require battery pack initializing. One is when a brand
new battery pack is to be used for the first time. Another one is the occur-
rence of a battery actual operating time is much less than expected.

There are 3 steps to initialize the battery pack:

Turn off the tablet PC power. Then connect the AC adapter to recharge
the battery pack.

Disconnect the AC adapter and leave the tablet PC on. The tablet PC
will be shut down by itself when the battery is completely discharged.

Connect the AC adapter to fully charge the battery pack. The initializing
process is completed.

Checking the Battery Level

NOTE: Battery level is an indication of estimated result of the
system only. The actual operating time may vary from the indi-
cation depending on the level of tablet PC usage.

By Operating System
You can check the approximate battery level using the battery meter func-
tion of the operating system. To read the battery level in Windows, go to
Control Panel> Power Options> Power Meter. The Power meter icon could
be set to Taskbar for easy access.