I’ve had the G18 for a little over a year, today I also saw exactly 13% battery wear level, I discharged the battery about 10 times in a year, all the time it was 80%. It's a shame, but what to do...
This is really very strange, it’s not clear what the connection is, but after installing the “ASUS Precision Touchpad driver” the video card eject icon really disappeared. Thanks for your help, all the best.