I don’t know why my iPhone battery health has dropped to 76% but it’s still a 1and half year old mobile but my 13pro max is almost 3 year old it’s still running in 84 health
[Edited by Moderator]
iPhone 14 Pro Max, iOS 17
You simply cannot stop Battery Health decline. And if your phone has dropped to 76% it is now well past the point of needing its battery replaced. Apple recommends replacing the battery in an iPhone when Battery Health dips to 80%. Continuing to use a phone with its health less than 80% can cause the battery to swell, which would destroy the phone. Schedule a battery replacement as soon as possible --> iPhone Battery Replacement - Apple Support
How can I prevent iPhone battery health drop?
