Split from this thread.
Was your issue with the connected standby function or the issue that some Surface books still have battery drain when it is completely shut down? Or possibly both?
Today i lost 10% in battery life after having my computer shut down for 24 hours. Not sleep, not hibernate, shut down. I would show a screen cap of my battery report showing this, but I'm not sure how to on these forums. I just really hope this isn't an overlooked issue because I see a lot of people complaining about the connected standby but there are also users who experience battery drain upon full shut down