(2019 darter pro) 4-6 hours of web browsing/vscode + light docker, depends a bit on what all i'm running. That's been fine for me but I wouldn't get it if you're in a scenario when you're generally unplugged for a whole work day / international flight.
4-6 hours would be doable. Thanks! I kind of wanted to stay on the 13-14" side but this looks like a nice machine. The smaller sys76 just have too small of a battery for me. Sounds like you had the same concern.
FWIW I left a more in depth review on reddit when I got it - https://www.reddit.com/r/System76/comments/bezy1w/2019_darte...