The new built-in software and hardware system is automatic, always-on, and works to provide the best possible performance as battery aging occurs over time. The power needs of iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, and later are dynamically monitored, and performance is managed so that it can address these needs in real time. The system is more advanced than previous iPhone battery and power management systems and allows your iPhone to reduce performance impacts from battery aging.
About performance as batteries age
While performance impacts are reduced as much as possible, battery aging might still eventually lead to noticeable, possibly temporary, effects. Depending on the battery state and the tasks that your iPhone is handling, examples might include longer app launch times, lower frame rates, reduced wireless-data throughput, backlight dimming, or lower speaker volume.
Check battery health on your iPhone
All rechargeable batteries are consumables and have a limited lifespan—eventually their capacity and performance decline so that they need to be replaced. To learn more about your iPhone battery health and if a battery replacement is recommended, go to Settings > Battery > Battery Health.
If your iPhone performance has been affected by an aged battery and you would like to get help with a battery replacement, contact Apple Support for service options.
- Learn about battery service and recycling
- Learn how to improve the performance of your iPhone
- This article applies to iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, and later. Learn more about overall iPhone battery and performance.