Excessive battery drain for my iPhone 12 pro
i Noticed excessive battery drain since I updated to iOS 18. It’s so bad that I go from a 100% to 70% in less than 30mins. The battery health is still 84%. What should I do pls
iPhone 12 Pro, iOS 18
After an iOS update, it's common to experience an increased battery drain as certain tasks related to the update continue in the background including indexing, you should only experience this increased battery drain for a few days before it goes back to normal.
⇢ If the battery in your iPhone drains too quickly - Apple Support
By the way, when your iPhone battery health reaches 80%, you should have it replaced.