Battery Standby Draining.

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
So there's something I don't understand.
When I put my iPhone 6 into airplane mode, turning off location, Wi-Fi, no apps in background, etc.. it still drains fast!
1% drops in 10-15 minutes!
The iPhone almost doesn't do anything at all in that case, so why don't we see a bigger difference between draining while using or while on standby?
*Checked my battery, it's fine.*
Apple should do something about it...
 

Stefan johansson

macrumors 65816
Apr 13, 2017
1,294
607
Sweden
You have screen turned on? That's the thing that drag most battery power. Every time you light up the screen,it drains power,and it's exactly the same with all large screen phones,regardless of system.
 

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
You have screen turned on? That's the thing that drag most battery power. Every time you light up the screen,it drains power,and it's exactly the same with all large screen phones,regardless of system.
That's not my question...
I asked why it drains so fast with screen off and while on airplane mode, while almost everything is off.
 
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stevemiller

macrumors 68000
Oct 27, 2008
1,742
1,170
mine has this issue in totally random fits and spurts. yesterday it was so bad at some points it actually was draining while plugged in and not being used. battery settings reported most usage was messages - of which I had sent maybe 40 total the whole day. restarting didn't seem to stop it, and recharging took forever. its frustrating :(
 

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
Check if wifi is active.
No, it's not.
Everything that can be turned off is turned off (expect the iPhone itself).
Still, it drains so fast while it's supposed to be doing *almost* nothing.
And, battery settings always show that iPhone was on standby while draining.
 

Mlrollin91

macrumors G5
Nov 20, 2008
13,535
9,080
Ventura County
I've just changed it recently.
And when I went to check it again, they said it's 100% OK.
Who said its 100% okay?

If you have a Mac, download Coconut battery and check the battery health. If you have zero apps open and everything turned off and its draining, it definitely sounds like a battery problem.
 

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
Who said its 100% okay?

If you have a Mac, download Coconut battery and check the battery health. If you have zero apps open and everything turned off and its draining, it definitely sounds like a battery problem.
They told me that in an Apple Store.
Can you estimate how fast your iPhone (even if you have another model) drains while everything is off?
Would it last a full day?
 

Mlrollin91

macrumors G5
Nov 20, 2008
13,535
9,080
Ventura County
They told me that in an Apple Store.
Can you estimate how fast your iPhone (even if you have another model) drains while everything is off?
Would it last a full day?
If I turned everything off, it would last multiple days. I get 0% standby drain overnight on my 7Plus with BT/WiFi turned on.

Just because the Apple store said its 100% okay, doesn't actually mean it is. The system they use to determine battery health is less accurate than using something like Coconut battery which gives you a real time reading.
 

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
If I turned everything off, it would last multiple days. I get 0% standby drain overnight on my 7Plus with BT/WiFi turned on.

Just because the Apple store said its 100% okay, doesn't actually mean it is. The system they use to determine battery health is less accurate than using something like Coconut battery which gives you a real time reading.
Looks like the 7 Plus has a really improved battery life.
I think it's a software bug (maybe effecting specific models), and hope it'll get fixed soon.
 

Mlrollin91

macrumors G5
Nov 20, 2008
13,535
9,080
Ventura County
Looks like the 7 Plus has a really improved battery life.
I think it's a software bug (maybe effecting specific models), and hope it'll get fixed soon.
I think its your particular device. There would be a lot more threads about it if it were an issue that was affecting multiple people.
 

mman454

macrumors newbie
Jul 12, 2015
23
12
How did you test your battery drain? (i.e. Did you have it sitting plugged in at 100% for a while before starting) Put it in airplane mode, and don't touch it for an hour. How much charge do you lose?

You also said you had the battery replaced. How long ago, and who did the replacement? If you had someone other than apple replace it, they may have used a cheap replacement battery. After all, with apple charging only $79 for a new battery install, other shops would have to cut corners somewhere to compete.

I second what Mlrollin91 said, use a 3rd party program to tell you your battery health. In terms of warranty and AppleCare, apple considers anything over 80% of original capacity to be "100% ok." The funny thing I've noticed regarding the batteries internal capacity reporting, is that it can actually jump around through a single charge/discharge cycle.

If you have windows you can use iBackupBot. You just click the name of your device in the left hand devices pane, then click "more information" under the the main window. The first three items that will show up in the long list of info is cycle count, design capacity, and full charge capacity. What are those values showing?
 
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stevemiller

macrumors 68000
Oct 27, 2008
1,742
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I think its your particular device. There would be a lot more threads about it if it were an issue that was affecting multiple people.
it could be either. mine was draining like crazy yesterday but more acceptable today, which seems like an out of control process.
 

pacorob

macrumors 68000
Apr 8, 2010
1,774
311
the Netherlands
It could be a rogue/buggy app that keeps active while it shouldn't be.

Definitely look into settings such as:
* Settings app > Battery usage per apps - do you see apps that you didn't use so much as indicated?

* Settings app > Battery > scroll all the way down Is Usage and Standy-by time different if not it's definitely a rogue app causing this drain. It's unfortunately really difficult to track such an app. I had it during switch from iOS 6> 7 and luckely someone else in forum mentioned an app which I also had installed so I was able to find it easily.

* Settings app > Notifications - check if only the apps that need to send notifications are on and if the specific notification (sound, message) are needed for those apps

* Settings app > General > Refresh in background - Look close which apps actual are allowed to do this. I have this feature turned off completely for all apps

* Settings app > Mail > Accounts > New data > Turn push off, set e-mail fetching to either manual or e.g. per hour to save battery usage as well
 

simonsi

macrumors 601
Jan 3, 2014
4,850
734
Auckland
They told me that in an Apple Store.
Can you estimate how fast your iPhone (even if you have another model) drains while everything is off?
Would it last a full day?
My 6 will go about 2 full days in normal standby, so mail and all apps checking as normal on a 30min fetch cycle, wifi and BT turned on. There is definitely something wrong with your device and if it started when you recently changed the battery then that is a much more likely cause than than a random specific-to-device software bug that you hope Apple will fix (hint, they may not even see such a thing if it is too specific to devices...).

I'd perhaps hazard a guess that a non-genuine battery was used in the swap, it was either under-spec on capacity (so the % drains faster), or it is starting to degrade almost instantly, or both.
 

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
It could be a rogue/buggy app that keeps active while it shouldn't be.

Definitely look into settings such as:
* Settings app > Battery usage per apps - do you see apps that you didn't use so much as indicated?

* Settings app > Battery > scroll all the way down Is Usage and Standy-by time different if not it's definitely a rogue app causing this drain. It's unfortunately really difficult to track such an app. I had it during switch from iOS 6> 7 and luckely someone else in forum mentioned an app which I also had installed so I was able to find it easily.

* Settings app > Notifications - check if only the apps that need to send notifications are on and if the specific notification (sound, message) are needed for those apps

* Settings app > General > Refresh in background - Look close which apps actual are allowed to do this. I have this feature turned off completely for all apps

* Settings app > Mail > Accounts > New data > Turn push off, set e-mail fetching to either manual or e.g. per hour to save battery usage as well
For each minute I USE my iPhone, a minute gets added to BOTH usage and standby times. Weird.
Refresh in background is off and mail is set to manual.
 

Mlrollin91

macrumors G5
Nov 20, 2008
13,535
9,080
Ventura County
For each minute I USE my iPhone, a minute gets added to BOTH usage and standby times. Weird.
Refresh in background is off and mail is set to manual.
That's how it's suppose to work.

When the phone is used. Standby and usage goes up one minute per minute of usage.

When the phone is not being used, standby goes up one minute per minute of standby.

Standby should really be called "since removed from charger".
 

pacorob

macrumors 68000
Apr 8, 2010
1,774
311
the Netherlands
For each minute I USE my iPhone, a minute gets added to BOTH usage and standby times. Weird.
Refresh in background is off and mail is set to manual.
Is the usage and standby time exactly the same? If so then it probably is a rogue app, however other options that might cause it are e-mail or network settings. To solve that you can do these three things:
- do a hard reset
- a network settings reset
- deleting and reinstalling your email accounts

See also this topic.



It should look like this if no rogue app is causing battery drain:

 

adham7897

macrumors regular
Original poster
Jan 27, 2017
122
24
That's how it's suppose to work.

When the phone is used. Standby and usage goes up one minute per minute of usage.

When the phone is not being used, standby goes up one minute per minute of standby.

Standby should really be called "since removed from charger".
I just tested it.
It dropped 13% in excatly 4 hours while on standby, everything off.
Is that normal?
 
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