I’ve honestly never measured it, but it lasts me most of the day (e.g. ~8 hours) with the i5 chip I optioned it with last year. I wouldn’t classify battery life as a strength, but I wouldn’t classify it as a weakness either. On a normal day, I’m never worried about the battery dying. If you want more battery, the bigger sized X1 offers more than the Nano.

My normal workflow consists of Firefox playing music on YouTube, VS Code, and the terminal.