iPhone battery drains very fast
my phone drains the battery very fast
[Edited by Moderator]
iPhone 7 Plus, iOS 14
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Batteries are meant to degrade over time, which means after a while they won't hold the same battery capacity of which they used to.
Try going into Settings > Battery > Battery Health > What % are you on? Anything below 80% is a cause of concern. Apple recommends it should take around two years of usage to reach that level. If your battery shows as below 80%, you may want to look into arranging a battery service.
You might also find this helpful as it provides you with useful information on maximising your battery.