Can I setting the laptop using AC instead of DC charge ? Example: when the charger plug in , if the battery is 90% or any number that I can choose, then after that laptop will use AC instead of using battery ( Of course the battery always ready in case of emergency. I have been showed that feature on Dell's laptop from my friend, it can be adjusted in BIOS setting but I can't see anything like that on Razer Blade Stealth I5-7200u with BIOS 8.02 . Tell me if you have any knowledge about this case. Thanks