3) Insert a fully-charged main battery from its upper end, and then press down the lower
edge of the battery.
4) Slide the battery latch leftward to “Lock” position.
Warning:
1) Make sure the battery latch is at the “Lock” position before powering on the device.
2) For initial use, insert a charged battery, lock the battery cover in place, and then press the
Power key to power on the mobile computer.