My wife has had the Lily for over a year and has mixed results with the body battery working and has done several resets to try and fix it. I have the Venu 2 and never have any issues and unless I drink alcohol my body battery is usually up to 90% or more each night. She is usually stuck around the 5-20% even after sleeping 9 hours and she doesn't drink.
We even switched watches a while back for a night and she recharged my watch body battery normally and I was stuck at 20% with her watch. We are sick of the inconsistency and I see years' worth of Lily body battery posts. Is there a reason why the Lily is sub-par in this aspect and should we replace her watch with something better? Resetting it again is not a fix for us so we are looking for a real solution.