Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
iPhone 7 battery life
- Thread starter stuey12345
- Start date
- Sort by reaction score
Just to keep you guys posted, I went to the Apple Store yesterday and mentioned the battery drain issues (and also, the unexpected reboots when around 30% of battery remaining). The Genius ran several diagnostic tools. First one showed that my battery was in perfect condition (100% cells capacity). 2nd one showed graphs monitoring the battery drain on selected days. The Genius witnessed some heavy and abnormal drains on certain days, though he couldn't find the culprit in the logs. He suggested the usual tips (disable background refresh, disable location for certain apps, etc), and eventually asked me to perform a full reset. Given that I've had tried that before, I was given a new phone, which I've set up as 'new'. Unfortunately, the battery drain continues, even though I'd rather wait for a few days before drawing any conclusion, given that indexing may be working in the background. For now, I'll keep on using default settings and won't disable any feature just to give this fresh install a try in the long run.
I'm confident using any internet related features uses more battery and warms the phone up more compared to previous iPhone models.
Hey man I am having the exact same issues on my iPhone 7. It switches off at 20% and when I charge it back up, its at 20%. I tried performing a full hard reset and it didnt work. Apple said it was a software issue as well.
Should I get mine replaced?
No
I think so, at least you should get an appointment at the Genius bar. Mine hasn't rebooted since the exchange.
Back to topic, I felt battery life was kind of better when I spent two nights with the battery losing 3% in standby, as opposed to 10-15% before. I've upgraded 10.1.1 (the new phone that was given to me was running 10.0.3) and installed a few apps (got no more than 6 atm, with location/background refresh & notifications disabled for all of them), it went downhill.
10.1.1 is no worse than 10.0.3 for battery drain if nothing went wrong on the install
I advise to update via iTunes rather than OTA though
Cheers
Mine certainly was not. I had drain issues with a new/fresh install with no iCloud settings in Airport mode. I'm sure there are multiple issues though.
I updated to IOS 10.1.1. and it eats the battery like crazy, will be done to 20% after 3- hours, before it used to last 14-15 hrs. Put it on battery Low Power Mode and turned off Bluetooth but it seems to me that the 10.1.1 update is causing the problem, in addition the phone gets really hot when charging. IPhone 7 Plus, 256k.
I did a DFU restore on my iPhone 7 plus jetblack that was dying after 2 days of it just sitting on the shelve. This means a clean install, skipping all the setup prompts and then leaving it.
Still ended up dying after 2 days.
Leaving it unplugged at 100% result in a 15+% drop after about 8houre.
So now I've set it up but this time taken out the SIM card and it's on wifi only.
So far 100% still after 25 min of constant usage.
If it lasts long it'll prove that it's the cellular chip which is drawing significant amount of battery
Still ended up dying after 2 days.
Leaving it unplugged at 100% result in a 15+% drop after about 8houre.
So now I've set it up but this time taken out the SIM card and it's on wifi only.
So far 100% still after 25 min of constant usage.
If it lasts long it'll prove that it's the cellular chip which is drawing significant amount of battery
So how is it going without the SIM card?
If it's ok try a different SIM card In Your phone ., it's a long shot but if you google it the actual SIM card draining the phone is not unheard of.
Nope still the same. Severe drain in standby. Left it at 100% and woke up 7hrs later it was 88% No sim inserted. Next test is wifi off
I also have the battery drain while the phone is idle issue. Chatted with Apple Support last Saturday and did a restore with iTune. The issue persisted. Then yesterday I did a DFU reinstall. So far it looks like the issue is still there. The two screen shots show that my actual usage is around 140 minutes, but the usage indicator has almost 4 hours (240 minutes). I have an appointment with Genius Bar this Saturday. Wish me luck!!
When I say download processes, I mean playing videos on safari, downloading something from the App Store... those tasks drain the battery down quicker compared to my 6. Does anyone have similar observations?
I had the same issue as the other people in this thread. My iPhone 7 would drop about 3% an hour on standby. My last phone, a 6s Plus, had fantastic standby battery life and I'd get about 9 hours of usage. Went to the Apple Store, got a Genius who understood there was something definitely not right. He did a diagnostic on the battery and found nothing as I expected. I told him that I'd already reset the phone multiple times and put it into the DFU mode thingy which didn't fix it. He said he wanted to completely rule out software as being an issue and so he reset the phone and put some different version of iOS on it (I didn't really understand this, he said something about how our phones get the software from different servers or something like that). He had written down notes of my problem and told me to come in again if what he did didn't fix the issue and I'd get a replacement iPhone.
The issue was not fixed.
Five days later I went in again and got a different employee who I explained the issue to and how the last guy told me to come in again and they'd replace my phone. This guy didn't seem interested in what I was told five days ago and instead tried to school me on how iPhones work and that the standby battery drain was normal because the phones are "so powerful" he said. I sat patiently and listened to his spiel but then reminded him of what I was told by the last employee. He went off for about 10 minutes and came back to tell me that I would get a replacement iPhone because that's what I'd been promised. I got the feeling he wasn't happy and that he'd rather send me off thinking he'd educated me.
My replacement works perfectly and I now get similar battery life to my old 6s Plus.
This really shows that it all depends on who you get at the Genius Bar. If I had gotten the second guy on my first visit, I would still be stuck with a defective phone. Good luck, guys.
The issue was not fixed.
Five days later I went in again and got a different employee who I explained the issue to and how the last guy told me to come in again and they'd replace my phone. This guy didn't seem interested in what I was told five days ago and instead tried to school me on how iPhones work and that the standby battery drain was normal because the phones are "so powerful" he said. I sat patiently and listened to his spiel but then reminded him of what I was told by the last employee. He went off for about 10 minutes and came back to tell me that I would get a replacement iPhone because that's what I'd been promised. I got the feeling he wasn't happy and that he'd rather send me off thinking he'd educated me.
My replacement works perfectly and I now get similar battery life to my old 6s Plus.
This really shows that it all depends on who you get at the Genius Bar. If I had gotten the second guy on my first visit, I would still be stuck with a defective phone. Good luck, guys.