Razer Blade Stealth 2019 - Battery Hours and Trackpad/Touchpad

I currently own the first gen Stealth and I am considering the Razer Blade Stealth 2019 MX150 Full HD version and I'm concerned about the battery and touchpad. Battery My stealth lasts a lot shorter than the advertised battery life since the very start. I checked out a lot of reviews, and they're all claiming different usage hours (web browsing and word processing). The official Razer website claims to be 11 hours, most reviews say 8/9 hours and some reviews even say 4/5 hours. It is also mentioned that they're used in certain conditions like lowered brightness and processing/graphics power but do I need to manually turn the brightness or power mode settings down every time I unplug? Or is it automatic? Moreover, my old stealth has really bad standby time, any of you have much experience with the new Stealth? On the other hand, for Macbook Pros (13 inch), they claim to have 10 hours of wireless web browsing, but some of my friends tell me that they can easily go up to 14/15 hours when working with full brightness. Touchpad I heard the Microsoft Precision Touchpads been mentioned multiple times but how much has it really improved? How is it compared to the Macbook Pro series when we take into consideration the following: 1. General movement 2. Scrolling 3. Accidental palm prevention while typing Thanks guys!