Why is my iPhone 15 Pro battery draining so quickly?

KristineKre wrote:

But i was on vacation this weekend and charged phone through my Mac and it lasts at least 36h after charging. I don’t know what should i do now. Seems like they make a phone what only you can charge from you pc for a longer use.

The phone doesn't know where the power is coming from. Electricity is electricity. It sounds more like there was a problem with the adapter you've been using. It's possible you were using one that didn't pull enough power or was defective. Newer iPhones require more powerful adapters.

I got my iPhone 15 Pro on launch day, and I don't think I've ever charged it from my computer. This is the adapter I've been using:

Anker 20 Watt

Note that it is a 20 Watt adapter.

If you just bought the phone and you moved all your data over to it, it is working hard to index billions of bytes of data, which can take a few days, depending on how much data you have to index. And since it's a new phone, you're likely using it to see how everything works at the same time. You need to give the phone a few days to settle down and let the indexing process complete.

Hey, just started to charging directly from my Mac and seems it solves the problem. So no, didn’t get a new phone. It’s been 3 months for now, i think it is really issue with adapter that you use. Try to use original one. Didn’t buy mine still because there is no need. Will buy mine in summer when i will start travelling then will see if there is a really issue with adapter or the phone.

I felt the exact same when i purchased it, I shouldve looked up more information about the phone before purchasing. Im even thinking about downgrading to the 14 pro because there are very little differences in terms of functions. However, in my 2 weeks of having the phone I have disabled some features and noticed a significant improvement in my battery life. Regardless, I spent over $1000 on this phone and this shouldn't be an issue.

1. Turn off [Always on display]

2. The fact that I even have to do this is insane! But switch Data mode to Standard and Voice & Data to LTE.

3. Have Low Power Mode on always.

4. Turned off app tracking.

Still doesnt make the battery work as good as my 13 but it does help. I want to downgrade to the 14 pro but I'm having hope apple will call attention to the issue ASAP and resolve it in the next software update.

KristineKre wrote:

Bought my 15 pro 3 days ago. Battery life is awful. My 2 years old iPhone 13 can hold the 1,5 days, using phone throughout the day. But this, I don’t know. I was at apple store yesterday, they did fast battery diagnostic, from 6.00-22.00 if your screen time 3h- phone is dead. It’s not normal, now i need to give my phone to apple repair service for more diagnostics. I don’t think that for 1,2k phone it’s ok and i hope i will get new phone with normal battery.

If you bought the phone 3 days ago from Apple, you don't need to give it to Apple Repair. You just need to return it and get a different one.

Let’s define “overheating”. If an iPhone overheats it shuts down so it can’t be used, and displays a message saying it must cool down before it can be turned on, and it will probably be unusable for an hour or so. If you are seeing this it is a hardware problem and you should contact Apple support: 

• Click on “Support” at the top of this page
• Go to Contact Official Apple Support

Note that both of the above have options to receive a callback or chat

If you are not seeing this your phone has not overheated. However, if you fast charge your phone may pause charging at 80% and display a message saying that charging has paused, and will resume when the phone cools down. This is NOT overheating, and is normal when fast charging. It also won’t prevent you from using any app you have on your phone.

Also, some apps that use a lot of energy or that use cellular data rather than Wi-Fi can cause the phone to run warmer.

I’ve had my iPhone 15 Pro for Atleast 8 months, 9 months give or take. And it took 14 continuous hours to drain 50%, just try charging it and letting it run dead. It worked with an iPad 9th Generation

banks804 wrote:

I just got my 15 pro last week. I upgraded from a 12 and the battery is horrible! My 12 will last at least a whole day. I watch YouTube and Netflix all day at work and the battery would still last. This 15 is a headache! I'm so disappointed in this battery. It's supposed to last up to 23 hours but that a lie! My phone was on the charger all night. I came in at 6am, it's 1230 and my battery is at 47%. I'm in training so I barely touched my phone. Not ok! I'm so mad I went through so much to get this phone.

If you're unhappy with the purchase, why keep it? If you bought the phone from Apple within the last 14 days, you can return it if it doesn't meet your needs. You can then buy another one if you think the problem is just with that particular phone (it probably was) or you can use the money to buy something different.

Lawrence Finch wrote:

If you are not seeing this your phone has not overheated. However, if you fast charge your phone may pause charging at 80% and display a message saying that charging has paused, and will resume when the phone cools down. This is NOT overheating, and is normal when fast charging. It also won’t prevent you from using any app you have on your phone.

I kinda sorta wish Apple hadn't added that notification. Like Battery Health, it seems more to cause anxiety than to solve actual problems.

Bought my 15 pro 3 days ago. Battery life is awful. My 2 years old iPhone 13 can hold the 1,5 days, using phone throughout the day. But this, I don’t know. I was at apple store yesterday, they did fast battery diagnostic, from 6.00-22.00 if your screen time 3h- phone is dead. It’s not normal, now i need to give my phone to apple repair service for more diagnostics. I don’t think that for 1,2k phone it’s ok and i hope i will get new phone with normal battery.

You never did waste your money, I think it will be better to check your usage and your charging.

if you charge to 100% how long does it last?

and how frequent do you use the phone?

with my 11 pro if am to charge in full I really spend much time on my phone, the battery doesn’t last up to 5 hours that doesn’t mean the 11 pro battery is not good, it depends on the usage on the phone, that counts on how your battery life will be and how long it can last.

IdrisSeabright wrote:

I kinda sorta wish Apple hadn't added that notification. Like Battery Health, it seems more to cause anxiety than to solve actual problems.

Yes, it just paused and didn’t say why. It was much easier to answer “why did my phone stop at 80%” than it is to explain that dialog. But I also think they were oversharing with the Maximum Capacity display.

Maybe it works if you live in US or somewhere else. In my country i should go through several steps to prove that they sold me broken phone. But i was on vacation this weekend and charged phone through my Mac and it lasts at least 36h after charging. I don’t know what should i do now. Seems like they make a phone what only you can charge from you pc for a longer use.

I can’t Imagine, wow. I got a 15 pro and I’ve been using it and 100% last me an average of 10 hours constant use. And the worst part is that I’ve been spiraling thinking that there may be something wrong with my phone, but after reading all this answers I see that my phone is okay, and that a problem would exist if 100% just lasted 4 - 5 hours. I hope you get a new phone

One of my regrets was getting the iPhone 15 Pro. The battery life is by far the worst, and my iPhone 11 still lasts all day compared to the 15 (keep in mind my 11 is at 84% battery capacity and the 15 is at 99%). I spent over $1,000 on a cell phone, and every day when it reaches 20% by 3 PM with minimal use, I regret ever wasting my money.