Hope someone is following this to provide their thoughts. Bought a new SE2020 a month ago with 14.2 from the box. It was having issues with proximity sensor, which later I figured out was the protection glass that caused it to function this way.
But I was silly enough to believe that it might be software problem and upgraded to 14.6 several days later after the buy. Now I'm having the battery drain in idle of -1% every ~30-40 mins. I'm not a heavy user whatsoever: it's typically 4-5 notifications in 30mins here and there from WhatsApp/Telegram/Mail. And even this causes the new phone (100% battery health) to drain that quickly in idle.
Is it the same for everyone? I understand that A13 is far more "heavy" than A11 in iPhone 7 but losing that much just from a few notifications is awful for a 1m old phone. Just wondering is it 14.6 specifically which causes such drain in idle (saw a lot if angry messages about 11,12, 12PM) or it's just a tiny 1800 mah capacity of the battery?
Please let me know if any older ios 14.x is better in terms of battery life. Important note: I'm ALWAYS on low power mode, which does not seem to make any difference at all.