Winmate I881, User Manual

Page: 53 / 106

Rugged Computing
Users Manual Rugged Table PCs 53
3.2 Charging and Checking Charging Status
3.2.1 Charging the Battery Pack
The battery pack is the internal power source for the tablet PC. It is
rechargeable using the AC adapter. The operating time of a fully charged
battery pack depends on how you are using the tablet PC. When your
applications often access peripherals, you will experience a shorter operating
time.
NOTE:
1. Charging will not start if the battery’s temperature is below 0  C (32  F).
It is also recommended not to charge the battery when temperature is
above 45
 C (113  F)
2.
To prevent damage, the charging process may stop and the Battery
Charge Indicator flashes red when the environmental temperature gets
above 55
 C (131  F)
3.
The battery level may automatically lessen due to the self-discharge
process (0.21 % per day), even when the battery pack is fully charged
(100 %). This happens no matter if the battery pack is installed in the
tablet PC.