iPhone XS battery draining way too fast on ios 16.2
I bought an iphone xs in november 2022 and the battery lasted ok with ios 15.7, but when i upgraded to ios 16 the battery was draining with like 50% faster. Yesterday i resetted all settings because i thought i had a setting turned on that was draining my battery. Today, i had my phone at 60 at 09:25 and after EXACTLY five minutes (09:30)the battery dropped to 49% WITHOUT EVEN USING IT!!!
I also dont have widgets and background app refresh is turned on. Whats happening?!??
iPhone XS, iOS 16