I am currently using an ASUS zenbook and I just bought it 3 months ago.The battery is draining ....I have done some research about the battery life..with wifi usually it last 6h30min(100%) ..But now its 4hr...(100%)
Please do try these troubleshooting steps that may help.
- First is to uninstall/reinstall the battery driver from Device Manager.
- If it will not work do a battery calibration.
- Here's how: http/www.tomsguide.com/faq/id-2342991/calibrate-battery-windows-laptops.html
- If all these will not work, I would say that this is just normal due to ware and tare of the equipment.