You need to root with magisk and use taichi xposed, install taichi and flash taichi zip....YouTube videos and Google will explain it better than me
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You can use wakeblock app with magisk,its very good to suppress all Google crap with wake lock's eating battery..and use universal gms doze module, battery will improve greatly,i also removed health app and some other battery eating apps, browser etc.
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Its the second beta release,its not even public yet,of course its going to be less,,,same as when 11 came out first,its actually a privilege to even have this rom going so well right now!
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Have you wifi on + aod,any other things,i turn on aeroplane mode going to sleep (better quality sleep) and it always only 1 or 2% drop
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Did you try format data in twrp(were you type YES to confirm) and reboot to recovery do factory reset,flash new rom
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Use better battery stats and gsam, built in battery monitor is not really reliable,im on cc9 and battery is the best its ever been since pie
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