I've not used my XPS 13 long enough to really have a great feel for it but I'd estimate somewhere in the 5 to 9 hour range for light CPU/disk load (ie: mostly t

I've not used my XPS 13 long enough to really have a great feel for it but I'd estimate somewhere in the 5 to 9 hour range for light CPU/disk load (ie: mostly typing in a text editor, sometimes compiling and executing, maybe some web activity). Definitely not 19 hours. Your x220 battery life is impressive. Sadly, due to the form factor being super slim, there's no way to add-on or swap-in a bigger battery so it's not like you can improve upon the XPS with post-purchase mods/changes. It sounds like you aren't so concerned about performance as much as form factor and battery life. I'm not sure I have a great solution for you, the XPS might not be a good fit, but you might have a look at some of the Intel-based Chromebooks where you can load your own UEFI firmware and then boot directly to Linux. Some chromebooks have enough storage to be useful, sometimes have high resolution screens, and use rather low power consumption CPUs so they might fit your bill. It's a bit DIY but if you're into that kind of thing it might be worth your effort. https://mrchromebox.tech/#devices https://mrchromebox.tech/#devices