I am currently student and I wanted to buy budget laptop with relative strong performance.
1 year ago I bought Lenovo 320 ideapad 8GB ram, intel 8th gen. I used it only for programming, browsing internet, but on full battery he can work about ~1.5h to ~2.5h. When I am on my faculty, I need to have at least 4 hours to making notes in tex and other stuff and don't worry that on each break between lectures I need to find socket.
I am asking you, how can I improve battery life? Is there any option to replace my battery with another one to have 2x more capacity?
I don't know if it matters but I use system Xubuntu.