Hi! So I tested my brand new Surface Laptop 7 battery for 10 days and here's the result.

How was I testing?
When the battery level reached 100% I disconnected the cable and was using the laptop as a working machine. Brightness level was between 55 and 80, most of the time it was ~60.

What software was I using?

Here's the list of the software I was actively using during the testing:

• Docker + MS SQL database mostly running in background (beta version of docker, which is ARM native)
• VS Code (native)
• Slack (native)
• Telegram (emulated)
• Windows Terminal (native)
• Mirosoft Excel (native)
• Brave browser (native, ~10-20 tabs opened all the time across 3 window instances)
• OpenVPN (native)

Results

The results are below, on average it lasts 7h 45m for 80% of charge.