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Restored iPhone 6 Plus, Now Battery Life is Crap

MBP13

MBP13

macrumors 6502
Original poster
Mar 13, 2011
278
1
Hi. I restored my iPhone 6 Plus because my 16 GB Plus was literally full with barely nothing on it. Once I got the "cannot take picture because there's no memory" space when I only had 3 pictures, no music, and only 24 apps on it.

AT&T suggested I back up my phone, then factory restore it, then put the backup back on the 6 Plus. I did that, and I was able to regain 7 GB or so of memory.

However, by doing that, the battery life in my Plus has gone down severely. Since I've unplugged my phone an hour ago, I'm already down 7%. I've been on wifi and have been texting. Brightness is all the way down, not much running in the background. It seems like my battery will drop 10% just from me not doing anything major. It's enough for me to notice now. I sorta wish I wouldn't have restored my phone.

I was really impressed with the Plus' battery life before I restored my phone, but now I'm not so happy with it. Is this normal?

Please help!
 
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i think its a software issue. Some app is draining your battery.
 
Natzoo said:
i think its a software issue. Some app is draining your battery.
Click to expand...

I've closed out all apps, so I'll see if the battery percentage goes down without anything running.

----------
asfalloth said:
Lol in that case I think it won't be the restore process doing it.

Any clues is battery usage in settings?
Click to expand...

Home and Lock Screen 40%
Messages 19%
Facebook 10%
Snapchat 10%
Safari 8%

Anyway to reduce the battery usage the lockscreen uses? 40% is quite a bit.
 
My 6+ had a great battery life out of the box with 8.1 using my iPhone 5 iCloud backup. 8.1.1 was fine OTA too, but when I did an OTA install of 8.1.2 the battery life was rubbish (comparatively), and a clean install through iTunes didn't improve it. If I start again with my old iPhone 5 backup then all is well again, but the two month old 6+ backup is lousy.

What I find *really* odd is that if I load my old i5 backup and then do a 'reset all settings', the battery life instantly becomes lousy again even if I toggle all the settings to be identical. The only constant here is 8.1.2, so I'm hoping that 8.1.3 will fix things.
 
Hi,

Did you setup iPhone as new and then restore ? If not try that instead of setting up phone from the backup.

Sal
 
Sal09 said:
Hi,

Did you setup iPhone as new and then restore ? If not try that instead of setting up phone from the backup.

Sal
Click to expand...

Nope, I set up my 6 Plus as a brand new phone. I didn't restore from my iPhone 5 because I wanted to save space.
 
Let it drain down till 0% and auto shuts off, then do a full charge to 100% plus an hour or two at 100% without unplugging. Should fix it.
 
MBP13 said:
Nope, I set up my 6 Plus as a brand new phone. I didn't restore from my iPhone 5 because I wanted to save space.
Click to expand...

I had the same problem. Even the charge cycle didn't make a difference.I restored the phone but instead of setting up as a new device and then restoring it from backup I kept setting up device from backup. This time I restored the iPhone setup as new device and then restored from backup. Now the battery is holding up fine. The backup I used was made before I began the restore process.
 
As others have said, it might be a calibration issue. And the only way to recalibrate the phone correctly is to let it drain all the way down, and then charge it all the way back up without powering up the device in between.

I believe that when you restore the device, it will also switch Bluetooth on by default. Check that. And also verify whether any location services or background updating settings have changed. If all your apps are using location services and background updating, then that's a big time power drain.

You'd also indicated that you were texting. How strong was the cell signal? I've seen my battery drain go way up when I travel into a weak coverage area. With a weak signal, your phone has to boost the transmitter to lock on.

A lot of variables when you restore the phone as new.
 
I've heard 8.1.2 6+ battery life is a dog. Even though it's jailbreakable as well, im glad I stayed on 8.1.1 for peace of mind. The improvements seem incremental/ non existent anyways from what I've read.
 
thadoggfather said:
I've heard 8.1.2 6+ battery life is a dog. Even though it's jailbreakable as well, im glad I stayed on 8.1.1 for peace of mind. The improvements seem incremental/ non existent anyways from what I've read.
Click to expand...

My battery might have been exceptional, but the performance on 8.1.1 was terrible. App crashes, an inability to open links in landscape mode and WiFi dropouts. 8.1.2 improved all of these things, but it didn't completely cure them. Sadly battery life took a hit though, which was pretty annoying at the time for a two week old phone! I'm hoping that 8.1.3 brings back the battery life I had out of the box.
 
Woochifer said:
You'd also indicated that you were texting. How strong was the cell signal? I've seen my battery drain go way up when I travel into a weak coverage area. With a weak signal, your phone has to boost the transmitter to lock on.
Click to expand...

I was on iMessage. The signal strength isn't important because I have wifi.

Do you really think that 8.1.2 is the culprit here? I think when I reset my phone it updated the phone as well.
 
Maybe the battery isn't bad? I've been playing Trivia Crack for a few hours and I'm still on 58%. I've not put the phone on the charger since I took it off before posting this topic.
 
MBP13 said:
Hi. I restored my iPhone 6 Plus because my 16 GB Plus was literally full with barely nothing on it. Once I got the "cannot take picture because there's no memory" space when I only had 3 pictures, no music, and only 24 apps on it.

AT&T suggested I back up my phone, then factory restore it, then put the backup back on the 6 Plus. I did that, and I was able to regain 7 GB or so of memory.

However, by doing that, the battery life in my Plus has gone down severely. Since I've unplugged my phone an hour ago, I'm already down 7%. I've been on wifi and have been texting. Brightness is all the way down, not much running in the background. It seems like my battery will drop 10% just from me not doing anything major. It's enough for me to notice now. I sorta wish I wouldn't have restored my phone.

I was really impressed with the Plus' battery life before I restored my phone, but now I'm not so happy with it. Is this normal?

Please help!
Click to expand...

That seems relatively normal. After a restore the battery is terrible because the phone will be indexing and downloading and installing background stuff like HQ siri. Even a restore from backup still has to download background stuff
 
Last edited:
Sal09 said:
I had the same problem. Even the charge cycle didn't make a difference.I restored the phone but instead of setting up as a new device and then restoring it from backup I kept setting up device from backup. This time I restored the iPhone setup as new device and then restored from backup. Now the battery is holding up fine. The backup I used was made before I began the restore process.
Click to expand...


The same happened to me. Battery on the 6+ was horrible. Had to wipe it and setup as a new phone. Ironically I also had turned off a lot of stuff that was supposed to save power and it was so bad. Now I only enable or disable Bluetooth or wifi. Everything is at default. Battery holds up good.
 
MBP13 said:
I was on iMessage. The signal strength isn't important because I have wifi.

Do you really think that 8.1.2 is the culprit here? I think when I reset my phone it updated the phone as well.
Click to expand...

But, if your cellular antenna is on, then the signal strength does matter ... a lot actually. Even if the phone is on standby, it keeps trying to maintain a lock on the cell signal. And if the signal strength is low, then the phone needs to boost its signal.

Power drain comes from many sources. As I indicated, you need to first check your settings to make sure that power-robbing background activities like location services, and background app refresh didn't get enabled across all apps.

Can't blame the OS until you've eliminated all the variables, and restoring as a new device introduces a lot of them.
 
Draining the battery down to 0% and charging it over night worked. It's been off the charger for about 2.5 hours now and still on 97%.

Thanks for your help!
 
I seriously doubt your battery is that good. It's probably just not reading right.

Edit: unless it's mostly been not in use and you just mean idle drain. IN which case my mistake
 
thadoggfather said:
I seriously doubt your battery is that good. It's probably just not reading right.

Edit: unless it's mostly been not in use and you just mean idle drain. IN which case my mistake
Click to expand...

As of 11:29 PM CST, I'm on 42% and haven't yet touched a charger since I unplugged it earlier today at 1 pm or so. I've had Bluetooth on getting connected and disconnected each time I've been in my car, made calls, played multiple games of trivia crack, browsed FB, was on safari, watched Vines, went on Instagram, etc.

Yes, the battery is that good.
 
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