Trying to maximize my laptop's battery life. I am using mi notebook pro, kernel 5.3.13. I was using manjaro about a half of year ago and had 6-7 hours of battery life from the box (browser, vs code + terminal). Now I am on arch and I get like 3-4 hours of battery life. Disabled nvidia following the instructions on the archwiki (https://wiki.archlinux.org/index.php/Xiaomi_Mi_Notebook_Pro_15.6) (the output of lspci -v shows that nvidia has the module nouveau, but there is no kernel driver in use line, so I think that nvidia is off). Also configured tlp (https://pastebin.com/yX3q0EXz). What more can I do? And why do I have so poor bat life?