iPhone 17 battery drains quickly with normal use

7-8% overnight is not huge; typically it will be 15-25%. And you should be charging overnight, every night.

Any cell phone uses energy continuously, as long as it isn’t powered off. This means that if it is not connected to power for 8 hours the battery level will be lower at the end of that time. How much lower depends on what apps you have, how many notifications you have enabled (which will be delivered and processed by apps even if you force close apps-they will relaunch when a notification arrives), and, probably most important, how strong your cellular signal from the network is; your phone maintains a "conversation" with the network so your phone can be found when a call or text arrives, and low signal strength requires much more energy to do this update to the network. Thus, you should be charging your phone overnight so this nighttime usage is powered by the external source rather than the battery.

Andreaerp wrote:

However, you’re saying that to get the phones full battery potential you have to not have arguably 2 of the most used third party apps installed? How is that reasonable?

That is a simple test you can perform. It is the developer of the app that determines how much power they are going to consume and what background activities they are going to perform, and it is your choice to use them or not.

You would have to ask Meta why a simple photo sharing app would require so much battery power. Everyone else can do that with very little impact on the battery. Of course we know the reason and that is because in order to generate $50 billion in revenue last quarter, your data is what is being harvested and sold to advertisers. Ever wonder what they are gaining when they let you download and use their app for free?

Have you looked at the Privacy Policy page for Instagram in the App Store and the data that is collected? Apple can give you the information and even tell you the apps using your battery, everything else is up to you. Do I think that is reasonable for a photo sharing app, absolutely not, but that would be a Meta question not an Apple one? Let Meta know, even Google has called out Meta for the battery usage on Android devices.

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Lawrence Finch wrote:

The battery message is not normal, and you should take the iPhone to an official Apple store or Apple Authorized Service Provider.

Agreed. The keywords are "Apple" and "Authorized".

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In the future:

• Back up the phone
• Set it up as new, and test before reinstalling anything.
• Restore the backup you just made.

• If the problem occurs immediately, before you restore the backup, then it is a hardware problem.

Andreaerp wrote:

I bought the iPhone 17, upgrading from

the 14 and noticed that the battery wasn’t performing any better than my

old phone which has 76% battery health! I was also receiving a message saying the battery couldn’t be authenticated which Apple said was a firmware issue. After resetting my phone the error message did resolve but the usage did not. I decided to return the device and got a new one (from the same shop) and received the exact same battery warning. I’ve now returned both devices. I lost 20% in a 45 minute gym session only using my Spotify in the background and a workout app. Apple support suggested I turned low power mode on after charging! It’s an £800 what do

you mean!!!

Since you are just on your second day, the background processes indexing your files and updating object detection algorithms on all your photos has not even completed yet. It will take on average 3-5 days before those are completed before you are able to make any judgments on battery usage. You should expect battery drain, lag in the UI, and also the device will feel warmer than normal during this time.

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Not surprising to see Instagram/WhatsApp consuming the battery. Notice that WhatsApp has continued to use your battery for more time than you actually used the app. That has been a common denominator with the Meta apps consuming the battery that were resolved when removing. Simple test after the 3-5 days is to compare your results with those apps removed.

I went to the Apple Store in Melbourne twice and was told to wait for the latest updates. After I had installed the latest updates I noticed significant improvement of battery life :)

Thanks for some of the good advice on this post. I have the same problem and certainly agree that Apple is engaging in false advertising - if you read the "specs" for iPhone17, it sounds like you never have to worry about loosing battery power within a single 12-hour workday again - especially with totally humdrum usage (I'm neither watching videos nor do I use any social media). The reality is very disappointing in comparison.

I am wondering whether there could be some kind of vicious circle for people who use rubberized sleeves to protect their phones and then carry them in bags: The phone is "busy" (even without any apps running), it gets warm, and then it has to use even more power to cool itself, and that additional power usage makes it even warmer, etc. Might it be worth it to try keeping the phone "naked" as much as possible so it can be more efficient dissipating the energy it does use? (All these "smart apps" and "must-have features" are really just converting stored battery energy into heat... 1st + 2nd law of thermodynamics!)

With any new iPhone, I always calibrate the battery % by draining till switch off, charging to 100% without any phone activity, and then repeating. Before this the battery % and usage stats can be way off. Draining from 100% till switch off tests the real battery life - I find my new iPhone 17 to be on a par with reviewers findings eg 12-13 hours web browsing on wifi with medium brightness. I don’t find any excessive drain using the camera. If your battery life is significantly short of this I would get a refund or replacement.

• In my opinion, you should be charging your phone all night, every night and I recommend to use Optimized Charging instead of the Charge Limit so your phone will be ready for you at a 100%. charge in the morning. Your phone will not be overcharged.
• Charge Cycles is the result of how many times your Battery has drained its capacity, not how many times it has been charged.

For a better look at your battery consumption, post a screenshot of what you see at Settings > Battery, that shows your green battery graph with the last 24 hours option and the top 5 apps consuming the battery.

Sstteeffaann wrote:

My 16pro lasts 3 hours!!!!

Since you have not provided any of the details, such as screenshot of your battery graph showing the last 24 hours of usage and the top apps that are consuming the battery, all you can do is schedule an appointment with Apple for them to perform diagnostics. It is also not clear if you performed any of the recommended steps provided here, such as the Force Restart or Factory Reset using a computer. Both of which has seen success for some of the users here.

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jes294 wrote:

My battery drains without using.

When I kept 40 before sleep and in morning it will in 20 percent. I’m very disappointed

Losing 20% overnight is, if anything, an expected drain.

Any cell phone uses energy continuously, as long as it isn’t powered off. This means that if it is not connected to power for 8 hours the battery level will be lower at the end of that time. How much lower depends on what apps you have, how many notifications you have enabled (which will be delivered and processed by apps even if you force close apps-they will relaunch when a notification arrives), and, probably most important, how strong your cellular signal from the network is; your phone maintains a "conversation" with the network so your phone can be found when a call or text arrives, and low signal strength requires much more energy to do this update to the network. Thus, you should be charging your phone overnight so this nighttime usage is powered by the external source rather than the battery.

rosyfreitas99 wrote:

I’ve got an iPhone 17Pro, a present from my husband. My last phone was an iPhone 12 Pro and the only issue was the battery draining too fast, due to its age.

Now it seems to me that the brand new iPhone has the same problem. Charged all night and the battery lasts around 7 hours!

You should be getting more than 7 hours of battery life. Post a screenshot of Settings > Battery that shows your green battery graph with the last 24 hour option including the top 5 apps consuming your battery.

I would assume you are not using a 80% charge limit as that would start your day with the battery already depleted by 20%. If your top app consumers are Social Media, try removing and compare the difference.

DebbiZ wrote:

The 17 is supposed to get 12/13 hours of use time. I do not get that. I have also called & get no help. This is so wrong. I have had my new iPhone 17 for 2 months. It’s like there is no warranty from Apple. I am now angry. It’s total BS.

You will get that using the installed apps, but third party apps can certainly use more power. What did you find was using your battery when you went to Settings > Battery? Some apps have already been noted as power hungry, but it is up to the user if they want them or not.

Waqaaas wrote:

Iphone 17 pro battery drain very quickly why?

There could be many reasons. If you have a poor cellular signal, that will drain the battery quickly. If you're out in the sub-freezing weather, such as my city is experiencing right now, that can also do it.

The first step is to go to Settings>Battery and see what's using the battery.

KatieB22 wrote:

Other things to consider is how many apps you allow to use your location, how many people you share your location with and leaving your WiFi on when not connected since it will be searching constantly for known networks to connect to. Turn off WiFi when going somewhere that you will use cellular data instead. I only have a few WiFi networks that I will turn on my WiFi and connect to, all other times I am on cellular data and WiFi off. Battery life is excellent.

Leaving WiFi on is not a battery issue in any significant way. And leaving it on will make your ability to use navigation services much more accurate.

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