HP Elite X3 - Manual (Page 13)

Lights
Component Description
(1) Caps lock light On: Caps lock is on, which switches the key input to all capital letters.
(2) Low battery and TouchPad light ● Amber: The battery charge level is less than 10 percent.
● Green: The battery charge level is more than 10 percent and the
TouchPad is off.
● Off: The battery charge level is more than 10 percent and the
TouchPad is on.
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