Best Laptop Powerbank under $200

I have an MSI laptop and its battery sucks. This may be the case in many other laptops too. As far as I know, almost all the gaming laptops' battery sucks (under 3 hours backup), all most all 2 in 1 laptop battery rocks (more than 8 hours), almost all other laptops have a mediocre battery life of around 6 hours. Carrying chargers is an option but don't you think it is messy and inconvenient? To get rid of such hassles, get yourself a good laptop power bank. It might seem new to you because not a lot of people use a power bank for laptops. Check out this cool battery bank from Maxoak which is made specifically for laptops. The battery capacity is 50,000 mAh (in terms of wattage, it is 130W) which is obviously not small but it is portable enough (1.2kg) to carry in a backpack. Not