LG LU20 User Manual page 31

If the battery is fully charged, the indicator is green light.
6. To remove the battery pack, unlock the left battery latch to the right until it
clicks, and push the right battery latch to the left and hold; then slide the
battery pack out of the slot.
Caution
When you are not using the computer, remove the battery pack.
Note:
Battery LED
When pressing [PUSH) button, 3 LEDs are turned on and brightened by charging
the battery.
In the case of exchange the battery on standby mode.
- Available to exchange the battery when using AC adapter.
- Available to exchange the battery depends on the system activation when using
the battery only without AC adapter.
* System is running (Power indicator LED: Green ):
Unavailable to exchange the battery. There is the risk of losing data.
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