iPhone battery life

matt1403 wrote:

yeah i have tons of social media apps and wa

Not unusual then. They constantly consume resources on your device as they gather the allowed information about you and send it off to their servers to sell for advertising dollars. Start by removing WhatsApp and compare the difference. Also review the privacy page on the App Store where the developers must disclose the information that they are harvesting. Here is an example for Facebook, and then multiply that by how many others you have and you can see the problem:

• Health & Fitness
• Financial Info
• Contact Info
• User Content
• Browsing History
• Usage Data
• Purchases
• Location
• Contacts
• Search History

Because different people use their phone in different ways. ALL energy use on any phone is by apps; which apps, how long you use each app, how frequently you get texts, email, content updates, phone calls, etc.

And some people understand this, and others don’t understand that everything a phone does uses energy, even when apparently idle, and thus may have unrealistic expectations.

If you follow the best practice of charging your phone overnight, every night, and it then doesn’t need to be charged until the next night it is working as designed. If you use it lightly you may end the day with more energy than someone who uses it heavily, but charging overnight is still the best practice. And ideally, with automatic backup enabled so you have a fresh backup at the start of each day.

It depends upon how you use the device. I have an iPhone SE generation one and unless I spend the day streaming with bluetooth the battery lasts all day despite the phone itself being 6 years old now(?) If I update a bunch of apps and then watch a few short videos it drops to 60% in less than 20 minutes.

matt1403 wrote:

idk, it doesn’t make sense to me, even if I don’t use it, for example at work, I don’t use it for 8 hours straight, yet it drops like 15 or more percent,

What is the signal strength at your work? The iPhone 16 series is using a different network than the iPhone 7. If the cellular signal is not good at work and you're not using the phone, put it in airplane mode. That will make a huge difference.

Background App Refresh is confusing, and Apple doesn’t explain it well. To start with, most apps on iOS devices are “event driven”. That means that something happens that is of “interest” to an app, and the app runs to deal with the event. Examples: A mail message arrives, so the Mail app runs to slurp it up. Likewise if a text message arrives; the Messages app runs to add it to the message list. A weather update arrives, so the Weather app runs briefly to add the latest information to the weather app. The same idea for the Stocks app, Find My, Apple News, dedicated news media apps, Facebook, Snapchat, WhatsApp, etc. In addition, Notifications that you have enabled also cause apps to run to process the Notification, so you know, for example, that a new text message has arrived.

All of these examples are apps that respond to an “event” that affects the app’s content. NONE of these "event-driven" apps are involved with Background App Refresh; they actually aren’t background processes at all, the are brief executions of the app in foreground behind the screen (if you are watching when an event arrives you will actually see the screen respond briefly). Background App Processing is used by apps that create their own events; for example, the Photos app periodically organizes the images in your photo library into automatically generated albums. This was not caused by any external event; the app just “decided” that it was a good time to organize albums. Or the Messages app takes time to “clean up” the message database. So it is only apps that decide, on their own to do some “work” that use Background App Refresh. Very few apps actually take advantage of this feature that was added several years ago. If you turn off Background App Refresh the apps that use it won’t do their “housekeeping” until you open the app, which may slow down your access to the app. 

If you turn it off it will save some energy, but that energy will be used later when you open the app. So there is only minimal benefit to turning it off.

matt1403 wrote:

idk, it doesn’t make sense to me, even if I don’t use it, for example at work, I don’t use it for 8 hours straight, yet it drops like 15 or more percent, I don’t have AOD on, nor background app refresh. and another thing is, I had an iPhone 7 that i used to use as my main device not too long ago, and if I didn’t use it, the battery wouldn’t drop a single percent. It’s so weird to me

Every few minutes your phone contacts the cellular network so you can be found if a call comes for you. If the signal is weak this uses a huge amount of energy, but even with a good signal it uses some. Mail arrives continuously. Notifications arrive however you have scheduled them. The weather app updates hourly, Likewise the Stocks app, and several others. All of this uses energy.

Do you have any Social Media apps or WhatsApp installed?