I have the i5 dGPU 256GB SSD version of the SB. I have read online on reddit that most people get about 10+ hours on their SB while I only get about 6-7 hours. Is the 10+ hours for light use (word processing, light browsing) only? I do watch a couple hours of youtube intermittently throughout the 7 hours I get so does that make a such a huge difference (4 hours less)? I don't have any background apps running (no AV, on balanced battery setting). Or is there a problem with my battery? My brightness is on medium and never go on high. No background downloading. Edit: I do use Chrome to browse websites and I heard it does drain battery, but apparently they new version 53 addresses most of that battery issues.