I was looking at this chart in AccuBattery and this dip looks rather strange. It does not look like normal battery wear. Did we get nerfed by the July update like the a-series with bad batteries? What’s your graph look like, if you use AccuBattery or equivalent?
Replaceable batteries solve pretty much all the battery issues where they blow up, it’s caused by minimising the battery clearances so there’s no healthy breathing/expansion room