Hi! I’m a iPad Air 4 user, I bought it from a person online and the iPad for the first month was great, but after 35 days I noticed 15 minutes less of battery, I think is not important but, 1 week later, another 15 minutes less of battery, I worried a bit, 4 days later 20 minutes less battery! That’s definitely not normal, but even worse, 2 days later 10 minutes less and 4 days later literally 1 hour less of battery!!! Now my iPad only lasts 5 hours of use! When I purchased it the battery lasted 8 hours of use, now only 5! In only 50 days of use and 37 charge cycles, I tried recalibrate the battery, drop battery to 0%, tips to save battery and all, but the battery keeps losing more durability and I don’t know what to do, I restarted the iPad several times and nothing, today my iPad loss another 10 minutes and I think that It will completely die, just by writing this comment I loss 3%! When the iPad is on standby mode it drops 2 - 3% every 10 hours which seems nice, but when I use it is all bad battery, I updated the iPad 2 times, first I was having iPadOS 14.6 and nothing was wrong but the month later the problems started with iPadOS 14.6 so I updated to 14.7 and nothing solved the problem, It keeps going worse, so I updated to iPadOS 14.7.1 and keeps going worse! I can’t believe Apple sell to us that devices with defects, Apple haves to solve this! I use my iPad for games, school, taking notes and this is how much the battery lasts: Games: 4 hours and 50 minutes (I made every single tip for save battery and this is not normal al all) YT and videos: 9 hours but that’s only because YouTube made a optimization update to have more battery while watching videos, if it was older YouTube version it lasts only 6 hours, safari and web browsing: 7 hours and 40 minutes (that is not normal) and by only having the screen on it last 8 hours! With wifi off and everything off and screen on but no apps being used it lasts 9 hours, and the charging time it charges from 1% to 100% with wifi on 2 hours and 36 minutes and with wifi off 2 hours and 14 minutes which seems ok, I can’t believe this issues PLEASE APPLE DO SOMETHING! I hope this is a software problem and it gets fixed soon, good luck to everyone having this problems I hope it gets fixed.