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iPhone 7+ Overnight & Standby battery drain

F

fabytmHD

macrumors regular
Original poster
Jul 31, 2011
117
24
Romania
Coming from an iPhone 6+ with its beastly battery, I was expecting the 7+ to be at least as good when it comes to battery life. However, ever since I got it, I haven't been able to get 10 hours of usage out of it(which I got on the iPhone 6+ all the time).

While I use the phone it doesn't seem to drain the battery as much, but a lot of the times when it is on Standby, it drains almost as much battery as when I use it.

Now before someone tells me to restore as new, I already did that, turned off Background App refresh and some Location services but it didn't seem to help.

Also, I've tried to see how much the battery would drain overnight after unplugging it before going to sleep and not using it at all(the phone was also on DND, so the screen didn't turn on). Considering the fact that it usually takes me 25-30 minutes of usage to drain the first percentage(100%-99%), I think it should've stayed at 100% the whole night, at least when it was on Airplane mode.

Anyway, I have a few screenshots showing off overnight drain while having the radios on, while having Airplane mode on and another one after a whole day of usage, which is the best battery life I got out of this thing.

Am I overestimating how long my 7 Plus should last? The reason I buy the Plus version is for the battery life, yet the battery life is not even impressive. Where are the days where an iPhone wouldn't even drain battery overnight(or would drain something like 1%)?

TL;DR: I'm getting about half the usage times of my old 6 Plus with my new 7 Plus and it drains battery while in standby and not doing much.
 

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Last edited:
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The only time I've had an iPhone lose significant amounts of energy while in standby for several hours is when I have a very weak signal and it therefore burns power constantly trying to connect.
 
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Danjrel said:
Wow there in not reading all that.

Cliff notes ?
Click to expand...
TL;DR:I'm getting about half the usage times of my old 6 Plus with my new 7 Plus and it drains battery while in standby and not doing much.

joeblow7777 said:
The only time I've had an iPhone lose significant amounts of energy while in standby for several hours is when I have a very weak signal and it therefore burns power constantly trying to connect.
Click to expand...

Mine is draining all the time, doesn't matter if I have 1 bar or 5 bars.
 
Charge at 10 percent and go to 100 then repeat. I guess batteries might improve over time. Idk tho
 
Danjrel said:
Charge at 10 percent and go to 100 then repeat. I guess batteries might improve over time. Idk tho
Click to expand...
It hasn't improved since release day. :( I usually charge at 10-20-30%, depending on how much I have left at the end of the day.
 
Whenever I am in 3G is the worst for my iPhone. Cellular signal seems to be the worst part when searching.
 
I definitely think there a problem with your phone. I use my 7 + a ton and even with heavy usage I make it all day until bed with at least 30 percent left. Take good screenshots and bring it to apple. It's not just something you should have to deal with
 
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Jal217 said:
I definitely think there a problem with your phone. I use my 7 + a ton and even with heavy usage I make it all day until bed with at least 30 percent left. Take good screenshots and bring it to apple. It's not just something you should have to deal with
Click to expand...
I went to an authorised retailer and service partner and they did the diagnostics test and they said it came out fine. If I could prove that it's dropping too fast, then they would send it to Apple, but I'm not sure I can convince them...
 
fabytmHD said:
I went to an authorised retailer and service partner and they did the diagnostics test and they said it came out fine. If I could prove that it's dropping too fast, then they would send it to Apple, but I'm not sure I can convince them...
Click to expand...
Don't go to a reseller. They won't have the customer service of Apple because if Apple disagrees with them they get charged. If there is no Apple Store near you call apple. Tel them everything you've tried. They will likely try to make you do other stuff but if you ask to send it in for a replacement 90% of the time they'll say yes. Talk to apple directly and tel them honest straight up what is happening and that the reseller ran diagnostics. Be up front honest and kind to the person you are talking to and they will help you out. They have never let me down.

Perfect instance is my apple watch was making a weird sound but only on certain occasions in quiet areas. I did everything they told me as far as resets and it didn't fix it. They had me send it in and they called me saying they couldn't replicate it. I told them honestly that it's tough to hear and to replicate, I'm not trying to rip anyone off, but I'd really like a replacement. I had a new watch on my wrist in 2 days.
 
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I'm having a similar problem with my 4.7" iPhone 7. I felt the battery was draining suspiciously fast while in standby although I can get through a day on one charge fairly easily. I tested it twice overnight and it drops around 2% per hour which seems a little unusual. So an average night I sleep about 7 hours. About 14% will be drained from the phone doing nothing by the time I wake up. I scheduled an appointment with the Genius Bar next week.
 
Was having the same problem and still kinda investigating, was at 97% other night and when woke up the plus was at 87%, I have disabled a good few of the system services and background data , but last night I set my email to fetch every hour instead of every 15 mins and I only lost 1% from a 100 though so I'm still unsure if this was the cause of the drain, even though I had same settings on my 6s without drain!
 
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Jal217 said:
Don't go to a reseller. They won't have the customer service of Apple because if Apple disagrees with them they get charged. If there is no Apple Store near you call apple. Tel them everything you've tried. They will likely try to make you do other stuff but if you ask to send it in for a replacement 90% of the time they'll say yes. Talk to apple directly and tel them honest straight up what is happening and that the reseller ran diagnostics. Be up front honest and kind to the person you are talking to and they will help you out. They have never let me down.

Perfect instance is my apple watch was making a weird sound but only on certain occasions in quiet areas. I did everything they told me as far as resets and it didn't fix it. They had me send it in and they called me saying they couldn't replicate it. I told them honestly that it's tough to hear and to replicate, I'm not trying to rip anyone off, but I'd really like a replacement. I had a new watch on my wrist in 2 days.
Click to expand...
I went to the retailer because there is no Apple Store in my country. :(

I will try to call them and hopefully the outcome will be positive. Thanks a lot for your input!

jkim3691 said:
I'm having a similar problem with my 4.7" iPhone 7. I felt the battery was draining suspiciously fast while in standby although I can get through a day on one charge fairly easily. I tested it twice overnight and it drops around 2% per hour which seems a little unusual. So an average night I sleep about 7 hours. About 14% will be drained from the phone doing nothing by the time I wake up. I scheduled an appointment with the Genius Bar next week.
Click to expand...

Keep me updated! I am curious what the guys at Apple will do! I do agree that the drain you are experiencing is not normal.

Techman82 said:
Was having the same problem and still kinda investigating, was at 97% other night and when woke up the plus was at 87%, I have disabled a good few of the system services and background data , but last night I set my email to fetch every hour instead of every 15 mins and I only lost 1% from a 100 though so I'm still unsure if this was the cause of the drain, even though I had same settings on my 6s without drain!
Click to expand...

Well, I have Push Mail off completely(set to manual) and a lot of other settings off and it still does this...
 
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Sounds like it's an individual phone issue. I lose maybe 2% overnight with my 7+ and I do not keep it in airplane mode.
 
jkim3691 said:
I'm having a similar problem with my 4.7" iPhone 7. I felt the battery was draining suspiciously fast while in standby although I can get through a day on one charge fairly easily. I tested it twice overnight and it drops around 2% per hour which seems a little unusual. So an average night I sleep about 7 hours. About 14% will be drained from the phone doing nothing by the time I wake up. I scheduled an appointment with the Genius Bar next week.
Click to expand...
2% an hour would be a bonus for me! Was on 90% last night, 8 hours later when I wake up it's on 46%! Going to do a restore and start from fresh (restored from back up first time round) and hope that helps
 
fabytmHD said:
TL;DR:I'm getting about half the usage times of my old 6 Plus with my new 7 Plus and it drains battery while in standby and not doing much.



Mine is draining all the time, doesn't matter if I have 1 bar or 5 bars.
Click to expand...

So use your iPhone 7+ more and the usage time will increase. It isn't magic. If you don't use it, the standby time will get bigger.
 
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Just woke up. 7 hours of sleep on full charge. Phone at 100%.
 

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macfacts said:
So use your iPhone 7+ more and the usage time will increase. It isn't magic. If you don't use it, the standby time will get bigger.
Click to expand...
Standby times are already pretty low. I can't use my phone from 8AM to 6PM non stop just to get 10 hours of usage! I am using it exactly like I used my 6 Plus and the drain is much higher, nothing about the way I use the phone has changed!
 
fabytmHD said:
Standby times are already pretty low. I can't use my phone from 8AM to 6PM non stop just to get 10 hours of usage! I am using it exactly like I used my 6 Plus and the drain is much higher, nothing about the way I use the phone has changed!
Click to expand...

If I were you and I could afford to be without my phone for a good few hours I would connect the phone to iTunes and carry out an Encrypted Backup to the computer.
Next I would kill everything on the phone just like the day you got it with nothing installed.
Now leave the phone alone for a few hours and then come back and check the battery.
If the battery has run down at the same pace you then know it's a hardware issue.
If on the other hand it's not budged then you can be assure it's an app or more likely a setting that is the culprit.

Now you have a choice: either go back to your iTunes and restore that encrypted backup or build the apps and settings back bit by bit checking as you go on.
 
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Techman82 said:
Was having the same problem and still kinda investigating, was at 97% other night and when woke up the plus was at 87%, I have disabled a good few of the system services and background data , but last night I set my email to fetch every hour instead of every 15 mins and I only lost 1% from a 100 though so I'm still unsure if this was the cause of the drain, even though I had same settings on my 6s without drain!
Click to expand...
log off your icloud account for now and see if issue persists
 
this is most likely an iOS 10 issue, and not an issue specific to the iphone7. some process is continuously running, which is why your usage is high even though your phone was idle. if you are familiar with xcode, you can easily see what apps and system processes are using the phone's CPU.

by any chance are you using an http proxy in your wifi settings?
 
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