QTek 8100 User Manual page 17

If the device is turned off, charging is indicated by an amber
light. If the device is turned on, charging is indicated by the
solid amber light on the LED indicator and the charging icon.
The completed charge is indicated by either a green light or
a charged icon. You can also charge the phone using the
USB Sync cable while connected to the PC's USB port.
Battery Capacity Indicator
Full
50%-74% capacity
28%-49% capacity
Less than 27% capacity
Very Low alert (less than 4%)
Smartphone User Manual
17