Share your experience!
Im not sure I get what you mean.
Battery Care only detects regular long charges, yes, since battery care now knows your regular charging habits it will charge 0-90% normally and then proceeds to slowly charge 90- 100%.
I think you are thinking more of the Qnovo tech that is also available to the Xperia devices..
here's a video explaining about these tech..
The qnovo doesn't need to be activated, it is built in the software and is always on. it is constantly monitoring the battery,
even you don't use battery care, ( I don't, owing to different times I charge the phone) the battery is still protected by Qnovo. Battery care can be deactivated and it isn't even availble in the US version of xZ,
you can not really "observe" the effects of Qnovo and Battery Care on the short term, these are battery techs that protects the battery on the long term (months or years),
these tech influences that battery life span not the battery life per charge.
I agree I have an Xperia Z5 compact and I could stretch 1 full charge up to 2 days and a half with moderate use.
with XZ 1 day only, that is why Sony is wise not to advertise the XZ having 2 day battery life , but most people already associate sony flagship with long battery life. but sadly this time it is not.