For what it's worth, my Playdate lasts a week or more easily, on just regular sleep with the system clock showing. Even with a download or two happening.
I know itโs supposed to. Unfortunately my device lost like 1% per hour of normal sleep now, so Iโm pretty sure it wonโt stand a full week without charging And charging it often will degrade battery in time, which I really want to avoid. Also having a battery percentage always, visible and not only during charging, would be great
I see, sounds like something's not normal with your unitโbut with any luck it may just be the displayed %, which is only approximate and I've always seen weird variation in that #. (And maybe the displayed # could get an OS update in future?)
So if the % drop seems to show it would only last 4+ days, it MIGHT still last the week or more that it should.