I can't define what a bad or good expectation is. I can only comment based on my needs. There is no phone on the planet that would last me all day every day without mods or charging cases. The rumor is that the G6 will be 3200, but even if it were 4000 it wouldn't last me all day. That's why I prefer swappable batteries when I can't top off with quick charge.So 1 can't last all day? That's a bad expectation.