Got my V4 3-4 months ago. No issues. Through the summer used it daily, almost 24/7. Besides daily exercise, I was monitoring my sleep patterns. Five or more days before charge.
A week or two ago there was an upgrade. Seems that since then, battery lasts less than 24hrs. So, really recent issue.
I've seen a lot of info from a year ago. This seems new.
Help please.