User Manual

21
Chapter 4
Power System
Charging the Battery for the First Time
The MT680-AMWTAG is equipped with a Lithium-Ion battery. The MT680-AMWTAG may not power on
after long storage periods without an external power adapter, due to battery discharge. In this case, connect
the MT680-AMWTAG to the power adapter and recharge the device for about 12 hours.
NOTE: The MT680-AMWTAG can operate for approximately two hours (depending on the hard-
ware configuration and backlight usage) or can store data for 24 hours without external power.
Operating the MT680-AMWTAG’s backlight screen at 100 percent brightness consumes the
most power. Therefore, when the MT680-AMWTAG disconnects from its external power source
it will enter into sleep mode, which automatically turns off the backlight. Tapping the touch-
screen will set the backlight screen to minimum brightness, saving battery power.
Checking the Battery Status
Check the Power Properties by tapping Start
→ Settings → Control Panel → double-tap
Power.
This status icon appears on the
MT680-AMWTAG’s task-bar indicating the low
battery status. The MT680-AMWTAG will enter
suspend mode when the battery level reaches
Low status, and the MT680-AMWTAG will enter
sleep mode when the battery level reaches Very
Low status. There is a 12 hour time window to
recharge the MT680-AMWTAG, but after this
time period there is a strong risk of losing all the
MT680-AMWTAG's internal memory
This icon appears in the taskbar when the bat-
tery is Very Low and the battery should be
recharged as soon as possible.
CAUTION! Immediately backup the
MT680-AMWTAG’s data or risk losing
everything when there is no external
power, and the Main Batteries Very
Low warning window appears.