The new built-in software and hardware system is automatic and always-on, and works to provide the best possible performance as battery ageing occurs over time. The power needs of iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max and later are monitored dynamically, 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 ageing.
About performance as batteries age
While performance impacts are reduced as much as possible, battery ageing 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 and they need to be replaced. To find out 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
- Find out how to improve the performance of your iPhone
- This article applies to iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max and later. Find out more about overall iPhone battery and performance.