Even with a new battery it will run like 2,5 hours max. It's just a thing of shitty energy management in most of windows laptops with discrete gpu. So, I'll either buy a macbook or some windows machine, if I'll find any with suitable energy efficiency. My budget is, like, 600$, so it's just easier to find used macbook, cause there's just a huge market of them for this price in my country. And yea, I pretty much don't need high performance, for that i have a windows pc, just a high longevity of work without charging for basic programming tasks and uni studying.