Fix: iPhone 7 Battery Draining Fast

I have some bad news... the battery drain is back today!

Again the "in use" and "standby time" where the same, 8 hours and 5 minutes.

Please Apple i'm hoping you guys are looking into this! It's driving me nuts.

Have you updated iTunes since you removed iCloud for Windows? Just asking because as you may well know, when you update iTunes it brings by default (or at least it does to me) the option to install iCloud for Windows, so just one thing to discard before you enter into panic mode.

Now, there is something else going on as 2 more iPhones at my home have done the same but it was just one day, first was my littler daugther's iPhone 7, she called me saying that she had the same issue, at that point I already knew about iCloud for Windows and have fixed it so it didn't make any sense, so I just told her to put the phone on Airplane Mode, then turn the phone off and on again and once it finish booting up to turn off Airplane mode, it fixed her issue.

So, last week, on Thursday, my other daugther's iPhone 7 plus began doing the same and I simply told her to the steps above and that was it, no more issues.

So as you can see, it has happened even without iCloud for Windows installed, but the only difference is that it gets fixed with a simple reboot and/or Airplane Mode on/off, with the original issue and the one talked about here there was no fix, you could reboot, Airplane mode on/off but nothing fixed it, the only thing that has worked for me for the past 2 weeks after suffering from the issue for a month was uninstalling iCloud for Windows.

Got some bad news too. I unistalled iCloud from my Windows laptop and since there was no battery drain until today.

After 72 mins of normal working, my usage and standby time started to increase together. Did a hard reset, my iPhone 7 seems to be working right now. Also I deleted my Mail and iCloud Drive apps. And what I noticed is when this drain's happening I always stay connected to a Wi-Fi network. And if it happens again, gonna try that airplane mode fix you suggested.

Hi guys, I've been experiencing the same as you are and I'm very disappointed with it. My battery drains so fast. I've called apple care about this since I am not in the country where I purchase the Iphone and having a lot of problems. My battery is draining even if I'm not using it and I did the solutions you have told in this discussion like resetting, restoring, uninstalling icloud for windows but it does the same. I hope we will be able to find a solution about this. Btw is it fixed in IOS 10.3 ? Please let me know. Thanks

Hi, I've still been experiencing battery issues after uninstalling icloud for windows. I've tried resetting twice, rebots, optimazations and still, my battery drains quickly even I'm not using it. I'm very disappointed with my iphone 7. Have it been working well know in IOS 10.3? Please let me know. Thank you

That's a question for Apple, not for me, don't you think?

Like I said, believe it or not, nothing stopped the battery drain, not 3 new phones (4 in total), not any Apple Tech troubleshooting, not a factory reset and setting up as a new phone, nothing, once I entered my work office it began doing it until I left the office in the afternoon. It just stopped that day I didn't turn on my laptop, then I realized that it was something on the laptop and the only thing different has been installing iCloud for Windows so after removing it everything went back to normal, no more battery drain for the past 3 weeks since I Uninstalled it after suffering from it every single day for a month.

Now what do you think it may be if it wasn't iCloud for Windows? ;)

No doubt in my case it was iCloud for Windows causing the drain. Three new phones later now my phone holds a charge all day long under normal and heavy use, and my two iPads which were also draining battery no longer drain battery.

okie let me try once but according to me it was an software issue becoz 10.2 was a very battery bug when I updated to iOS 10.2.1 I dnt face that type of prob, in iOS 10.2 I was able to use Ma ph around 4.5 hrs wit 10 hrs standby but in iOS 10.2.1 I can use upto 6 hrs wit heavy usage n 16-18 hrs standby. But am facing is all this during night standby for 6-8 hrs of sleep battery will loose 12% I have checked for so many time n I hav discussed with apple n submitted in apple care they said there is no issue wit the battery only software problem and one more problem I hav came across when I turn off Ma ph for about 3-4 hrs or 8-10 hrs n then again turn it back on I see there will 15% loss then I cross checked with iPhone 6 in that this type i dint see apple also said that is normal I dnt no wat to do plz help me out with this .

I'm not sure if this will help others, but I believe my issue has been resolved. I had tried everything listed in this forum except the iCloud on Windows because I don't have a Windows computer that I've been logged into. I finally went up to the Apple Store and they were just about to give me a new phone when they suggested doing a DFU to restore. So, we did that while we were there. I'm now 10 days post DFU restore and no signs of issues. I actually just completed a 51 hour cycle without charging (before doing this I was getting about 20 with the same amount of usage). If you're still having issues, I might considered giving this a shot. It's worked so far for me. If I have the problem again I will post an update.

iPhone 7+ running 10.2.1

Did you jailbreak your phone? I've read some articles about DFU and your warranty might be revoked by doing this. Could you tell me how to do it step by step please? I've tried all the things they suggested in here and my battery still drain.

I did not jailbreak my phone. As far as I know it won't hurt the warranty, but maybe look a little more into it before doing it. The Genius actually did the DFU restore, although I've done them myself before (not sure why I didn't think to do it this time around). Here is a link for instructions on doing the DFU restore.

Also, after it was restored I set my phone up as new. It's no fun to lose the data, and for me my Apple Watch health data, but I didn't want to risk anything transferring over from a backup. Hope it helps. Let me know if you have any other questions.

I've read the comments on the link of the article you said and some of their iphone was disabled after doing this. Does this mean that this process is a 50-50%. I can take the risk of losing my iphone since I cant claim my warranty because I'm in different country now.

I don't think that the process is 50-50. I would think maybe it's more people not familiar with the process and not familiar with troubleshooting. I would suggest making sure your phone is running the latest software (10.2.1) and iTunes is up to date. Like I said, I've personally done DFUs myself and it is something that they showed me at the Apple Store, so I think it's safe.

If possible, maybe take it to an Apple Store and have them show you or do it for you. If not, the decision is up to you whether or not you're comfortable trying it.

I too want to thank you desiadri for your suggestion! So far after several weeks it is still running well- 100% battery left after being off the charger for 6+ hours! I was getting ready to dump the iphone and go back to android with its crappy battery life, but it was still better than what I was experiencing with my iphone draining 6-8% per hour! I'm happy with my iphone again! I appreciate your posting this on as many forums as you can so we can all have it figured out! Hopefully Apple will too someday...

I'm glad it has also worked for you. I'm sure that if more people with similar issues do the same, most of them will also fix their issue.

There is always a chance an issue that looks similar or the same is caused by other things but I think that EVERYBODY with the same or similar issue should Uninstall iCloud for Windows first, reboot or add a network reset and see if it helps, then obviously report this to Apple so they finally do something about this obvious issue with such an important piece of software that they seem to be ignoring so far.