battery health quite often jumps around all the time. particularly when its at a lower percentage. you wouldnt want to be watching it 24/7 tho lol might get addicted!!! once batery health gets to about 75-80% its constantly jumping around. you have to kind of average it out in your head i spose
i always have mine plugged in and its usually at 100% but if i take mine somewhere for a minute or two and come back, it will go to about 97 or 98 and take about two days for it to get all the way back to 100