Why is my iPhone 16 Pro Max battery draining so fast?

My phone used to drain battery rapidly even when it was idle, and I couldn’t figure out why. A friend recommended this guide 11 Proven Steps to fix iPhone 16 Pro Max Battery Drain Issue. I followed their tips, turning off few features that I didn’t need to be running in background, especially background apps like the weather and map widgets. Now, I’m seeing a noticeable improvement in my battery life! You should try them aswell.

My 16 pro battery is draining faster than my 13's battery. Not sure I'll want to keep this phone-may just keep the 13 and send the 16 pro back.

same experience here. Battery is draining very fast on my iPhone 16 pro max. my iPhone 14 pro max was better than my new one.

Has Apple already replied?

iPhone 16 Pro here. 7:15am until 5:20pm now and I’m already down from 100% to 32%. Had the phone for 2.5 days now. Not a ton of active use today. Noticed the battery keeps draining pretty steadily around 2-3% per hour even if I’m not touching the phone. Definitely something is up. I came from years of Max phones. Got sick of the size and wanted to switch back to the smaller variant. Now I am going to have to see if this holds up since I don’t want to deal with battery anxiety. Normally I would drain my 14 Pro Max to about 10%-20% by the end of the day. 🤷‍♂️

I've noticed my iPhone 16 pro max’s battery seems to drain faster than my previous phone, which was a iPhone 13 Pro Max. Not by a huge difference but noticeable. I thought I would notice a decent increase in battery life for the 16 pro max

I’m having the same issue. Three days after I transferred all data to my new phone, I noticed pretty significant battery drain. To be clear, the transfer finished the first day I got my phone so it has nothing to do with that. All apps are updated, background refresh turned off, data refresh turned off. After a full charge, I browsed safari for 20 minutes and the phone went from 100% to 81% with very minimal usage.

my iPhone 13 Pro Max had way better battery performance. I wish I hadn’t sent it back to Verizon. Had I been aware of this issue, I would have never kept this phone. I’ll definitely be opening a ticket with Apple and I suggest everyone does the same

I’ve had the same experience with a iPhone 16 Pro. Battery draining when updates are done.

I have charged my phone twice, i activated my 16 pro max yesterday afternoon, i dont use it for calls either. Is apple gonna do something? Same is happning to my 15 pro max. Its not lasting for 3 hrs i have to charge again....

After an iOS update, it's common to experience an increased battery drain as certain tasks related to the update continue in the background including indexing, you should only experience this increased battery drain for a few days before it goes back to normal.

⇢ If the battery in your iPhone drains too quickly - Apple Support

My 11 pro max has better battery use than the 16 pro. There is something wrong with this scenario.

i have never complained about apple or battery until now. Very disappointed

Same problem here. My 16 pro drains the battery so fast. I decided to try the iPhone this year after using Android for a long time. I am very surprised and worried about the battery, while I am reading this post my battery went from 71% to 67%. This is insane!

Yes same as well- 16 pro max battery is not as good as advertised. Really hoping this issue is fixed.

i am thinking it is because I transferred all data from my old phone and did not set up as a new one.

My battery has drained from 100% to 70% since I woke up 2 hours ago. I have a 16 PRO and I can tell you this will be my last apple phone. $1300 for a 512 mb phone and I have to charge it at least twice during the day. Disgusting.

I’m having the same issue, and I thought it was just because it’s downloading from iCloud and setting up. But it has been a few days now and I can barely get 9 hours out of the phone before I need to charge but I usually start charging at just below 20 percent. I will try tomorrow to run it to 0 and see how many hours it gives but definitely not as advertised?!

I have the same - got my 16 Pro on launch day (Sept 20), the message did appear and stay on for a day or so that "certain tasks related to the update continue in the background including indexing" as some people are saying, but it was gone by Sunday. It's Monday now, I woke up with 90% (that's the charging limit I manually set for myself), 2 hours later (after some light video watching of maybe 20 minutes during breakfast plus a 5 or so more minutes of texting at one point), and it's at 80%. Very odd.

IF the indexing is continuing without the message being displayed, ok, but how long does it approx. last for?

EDIT: the only thing that happened for me that was out of the ordinary - I initially wanted to transfer my old phone data via WiFi from the old iPhone 13 to the new 16 Pro, but both phones somehow lost WiFi-connection during the transfer, so I stopped that and tried launching the new phone again, this time downloading a back-up off of iCloud (which worked without a hitch). But somehow I can't see that having anything to do with battery drain, can it?