[otnt]

They're almost always in leader/follower mode via bluetooth.
With connection via bluetooth they seem to use about 5% of the battery per gig (gigs are usually 1-1.5 hours but even for longer gigs they don't seem to use much more than that, at least that's my impression)

Thank you. That sounds like 20 hours of use per charge.
Does it include using the frontlight or no light at all?

What refresh mode do you use? Do you mind ghosting or is the page refreshed every time?

How is the writing speed when annotating in Mobilesheets?