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How to improve battery life on iPhone 18 Pro Max?

how to increase the battery timings as the same drains too fast,even my iphone 18 pro max battery drops to 25 % in 6 to 7 hours



[Re-Titled by Moderator]

Original Title: Battery Issue

3 replies

  • When did you set up your iPhone?
  • Did you recently update to iOS 27.0.1 and if so, when was that?


If it has been longer than 5-7 days since setting up or updating to iOS 27.0.1, then post the screenshot at Settings > Battery > View All Battery Usage and include both Battery Graphs and the top 5 apps consuming your battery. If you see a process on the bottom of the screen under other system usage, post that as well.


After setup of any new phone or update, there will be background processes being performed to index those files and that results in increased battery drain, increased heat, and some UI lag. Typically that takes about 5-7 days to complete and it is best to charge your phone all night, every night while it is connected to WiFi so those are allowed to complete quicker. That is expected and also seen in this Support Article provided by Apple.

About Apple software updates - Apple Support


Some things to look for in Battery Settings after that indexing has completed are the apps that consume your battery, including that are labeled as having Background Activites. Meta apps are known to be large consumers of the battery while it is harvesting your information to build its Social Graph. That is how they monetize their apps while it is free for you to download, and your data is being sold to advertisers.

Review these articles:


Battery Usage Support Articles

About the battery usage on your iPhone and iPad (and iPod touch) ... —> Check battery usage on your iPhone - Apple Support

Batteries - Maximising Performance —> Batteries - Maximizing Performance - Apple

iPhone Battery and Performance —> iPhone battery and performance - Apple Support


If you just upgraded: How long does indexing on a new iPhone ta… - Apple Community

- Home and Lock Screen generally indicate your iPhone is still indexing, syncing, backing up to iCloud, and doing AI setup if a device supports it and it is activated.

- Indexing taking several days but depends upon amount.


What are you doing with the iPhone? Some things such as videos, gaming, and some apps can use up battery power pretty quickly. Read Understand your iPhone battery usage and health - Apple Support

Read the section: View your battery usage information

On your device go to Settings  > Battery



Without being able to see you phone and what is installed, I offer these generalities:


— Do not use:

> anti-virus software

> "cleaning" or optimizer apps

> those useless client-side VPNs over-hyped in popups and TV adverts.


— Quit apps for which you do not need immediate access. Many browsers continue to "phone home" even when in the background.


— Remember that gaming and video, regardless of from a stream, your phone's storage, or a video-conference demand a lot of power. Best to do those while on the charger.