A:AnswerI cannot tell you battery specifics for this laptop but i can speak for the battery life. For very heavy use (Touch Screen or Gaming) i have had it last almost 3.5hrs, and almost 4.5hrs with mediocre use. I'd say thats pretty good for a touch screen laptop.
A:AnswerI asked asus.com support, they told me model Q553UB have Contrast Ratio : 700 and Surface Luminance, white : 300 cd/m2.
So what accurate?
Contrast ratio 700 or 500?
Brightness 220nits or 300nits?