I wondered why my battery was draining quicker than my bath.
Oh look it's adaptive battery. Turn it off, NOW.
remove that app, turn it off, do whatever, but do not use
I have a brand new S20+, and battery lasted half a day on moderate use
I remove and turn off adaptive battery, and phone last all day.
Surely you idiot in Korea must understand, that battery power is one of the top 3 needs of a phone, especially a smartphablet.
When I used Experia many years ago, their adaptive power was brilliant for extending time, yours do it in reverse.
.....
If I helped or solved your problem, please like or tick solved.
Have been using phones since 1993, and am self taught.
I offer advice for free, cos I think it'll help, if it doesn't, explain why, I might learn something new too.
Current phone Galaxy S22 Ultra
Previous phones: most S series, Note 2, Samsung Alpha, iPhone 3gs, far too many Nokia's!