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Finally fixed my 6S battery life problem

Z

Zeos

macrumors 6502
Original poster
Jan 24, 2008
425
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My 6s had recently started to eat through its battery by 2 or 3 in the afternoon, and sometimes by noon. All would be fine, but then with all apps closed, the phone would periodically heat up and the battery level would drop like a rock.

Looking at the battery usage on the phone, it turns out Safari was using 82% of my battery during the day. However I never use Safari, I use Chrome. After some digging around, I found that the culprit is Safari syncing under iCloud. I turned that off, and my battery is now 30% to 40% when I go to bed.

Of course, this means that your Safari won't sync across devices, but I never found that to be super useful anyway. And, by the way, I now use Chrome across all my devices (Mac, PC, iPad, iPhone) and it works just fine compared to Safari.

But why did this just start now? I have had the phone for months, and this has not been an issue. Perhaps it coincided with my switch to Chrome, but I'm not sure. Is it possible that if you do not open Safari regularly, the sync happens exclusively in the background and that process is more of a battery hog?
 
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How do you turn off this feature because I'm also experiencing a lot of battery drain on my 6s.
 
I always have Safari turned on on all my devices, never drained too much battery.

I know it worked for you, but I think there may be an issue with your battery. I also have a 6S that has a bad battery.
 
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Zeos said:
My 6s had recently started to eat through its battery by 2 or 3 in the afternoon, and sometimes by noon. All would be fine, but then with all apps closed, the phone would periodically heat up and the battery level would drop like a rock.

Looking at the battery usage on the phone, it turns out Safari was using 82% of my battery during the day. However I never use Safari, I use Chrome. After some digging around, I found that the culprit is Safari syncing under iCloud. I turned that off, and my battery is now 30% to 40% when I go to bed.

Of course, this means that your Safari won't sync across devices, but I never found that to be super useful anyway. And, by the way, I now use Chrome across all my devices (Mac, PC, iPad, iPhone) and it works just fine compared to Safari.

But why did this just start now? I have had the phone for months, and this has not been an issue. Perhaps it coincided with my switch to Chrome, but I'm not sure. Is it possible that if you do not open Safari regularly, the sync happens exclusively in the background and that process is more of a battery hog?
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Aditya_S said:
How do you turn off this feature because I'm also experiencing a lot of battery drain on my 6s.
Click to expand...

ielessar said:
I always have Safari turned on on all my devices, never drained too much battery.

I know it worked for you, but I think there may be an issue with your battery. I also have a 6S that has a bad battery.
Click to expand...

Guys I know that there are multiple threads about "Battery Life" however, "we" are all using a 6s and not 6s plus from what I see. Could you please share your battery usage with screenshots just to compare how your phones are holding up? Because I am either not really amazed by my battery life on my 6s.
 
mich070 said:
Guys I know that there are multiple threads about "Battery Life" however, "we" are all using a 6s and not 6s plus from what I see. Could you please share your battery usage with screenshots just to compare how your phones are holding up? Because I am either not really amazed by my battery life on my 6s.
Click to expand...

cc5e86b15a42a5c5630f56971ccda16c.jpg



Here you go. Be noted that I'm jailbroken, and this phones battery has degraded a bit.
 
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ielessar said:
cc5e86b15a42a5c5630f56971ccda16c.jpg



Here you go. Be noted that I'm jailbroken, and this phones battery has degraded a bit.
Click to expand...

Thank you very much!! Until now it looks good in my opinion. And I think that the best is when you post ur battery usage later on in the day, like under 50% or around 30% and under. Like this it is better to keep a track of it :)
 
I'm going to give the technique suggested by the OP a shot, today, and see if I notice any difference. I have a 6S and I don't even turn it on until at least 1:00 or 2:00pm during the week - I have it shut off during most of the day at work - and when I do turn it on, after some moderate use, my battery is usually down to circa 40% after about 6 or 7 hours.

Of course, I do have a Mophie, so I'll be fine regardless, but I'm going to give the technique a shot for today and see if I notice any difference with otherwise normal use.
 
TWD98j said:
I'm going to give the technique suggested by the OP a shot, today, and see if I notice any difference. I have a 6S and I don't even turn it on until at least 1:00 or 2:00pm during the week - I have it shut off during most of the day at work - and when I do turn it on, after some moderate use, my battery is usually down to circa 40% after about 6 or 7 hours.

Of course, I do have a Mophie, so I'll be fine regardless, but I'm going to give the technique a shot for today and see if I notice any difference with otherwise normal use.
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How'd it go?

I'm trying it too but I just did it so I won't know anything till tomorrow.
 
I have no problems with battery drain and keeping Safari turned on in iCloud. I have had that enabled for years now and it has never negatively impacted my battery life. I still get 9+ hours of usage on my 6s and 20+ hours on my Air 2. As someone that only uses Safari across all my macOS/iOS devices, turning this off would remove bookmark syncing, iCloud tabs and auto-saved password syncing.
 
cynics said:
How'd it go?

I'm trying it too but I just did it so I won't know anything till tomorrow.
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image.png

I can tell it's not the culprit for me. I'll still get 5-6 hours of usage with Safari iCloud sync turned off.

Still trying to get back to that 10+ hours I had when I was iOS 9.1.

Oh well worth a shot.
 
cynics said:
View attachment 638341

I can tell it's not the culprit for me. I'll still get 5-6 hours of usage with Safari iCloud sync turned off.

Still trying to get back to that 10+ hours I had when I was iOS 9.1.

Oh well worth a shot.
Click to expand...

Oh wow 10+ on a 6s?? That is quite impressive.. I wish i had at least 8 hours. But 6 is all i can get i guess...
 
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