Battery life on iOS 11 for 9.7 iPad Pro users specifically?

FeliApple

macrumors 65816
Original poster
Apr 8, 2015
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I wanted to know what's the battery life like for 9.7 Pro users who have updated to iOS 11. Lower than iOS 10, 9? Equal? If you can offer specifics such as duration in hours and usage, better.
I'm on iOS 9.3.4 and am getting 13-14 hours with 20% brightness and light usage. (Safari with Macrumors and news sites, a few light games and Twitter.) With heavier usage (a heavy game, higher brightness, maybe YouTube.) it's lasting around 11-12 hours.
How's yours?
 

LCPepper

macrumors 6502
Aug 5, 2013
270
151
United Kingdom
This is all very difficult gauge. I am getting about 12 hours, at least, with iOS 11 with my iPad Pro 9.7”

Just try it. Besides, it makes the iPad Pro so much more powerful/useful.
 

Perene

macrumors 6502a
Jun 29, 2015
835
301
Netherealm
Don't update to iOS 11 in any device.

I have an IPP 9.7 (128 GB wifi only) that wasn't used and most of the time I kept in the drawer. Then I installed the TSTAND in it:
https://goo.gl/64gMJp

(And since then it wasn't removed, because it's easier to leave it that way, removing would wear the stand and require two people). Also had to stop using the Smart Cover, then for some time I only used auto-lock for 15 minutes, later 10 and now 5.

And since then I started watching videos and using it as my single device, after my other IPP 9.7 was sold. Even this IPP 9.7 (256 GB Wifi+Cel) didn't have a 10% degradation in the battery. And I am sure it was used a lot.

In two months the degradation of the battery (from the IPP 9.7 128 GB) increased from 6, 7% to 10, 11. That alone would be acceptable, if for the first time during the day I didn't have to recharge the IPP 9.7 because the battery dropped to almost 0.

I don't remember having to do that since I had an iPAD 4, and when I sold this iPAD 4 it had almost a 30% degradation. And I don't believe at all that even by watching videos during the day and with 50% brightness the battery could be used so fast.

I would be deeply surprised if iOS 11 haven't done something wrong with all the batteries out there, and of course this can only benefit Apple, that forces you to replace your battery or the device, so this must be on purpose and is far from being a conspiracy theory.

My IPP 10.5 won't stop using iOS 10.3.2 and I plan to cease updating apps too, if they are going to become broken in it. I want my equipment to last as much as possible, and replacing any used battery (at least for iPAD) is either costly or can't be done.
 

CMoore515

macrumors regular
Sep 27, 2015
182
106
Des Moines, IA
My battery has sucked since iOS 11 update on 9.7 Pro. I use mine in bed and I've noticed significant drain while it's just sitting on my nightstand during the day. From 90% to 60% in a day or two with minimal use.
 
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FeliApple

macrumors 65816
Original poster
Apr 8, 2015
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My battery has sucked since iOS 11 update on 9.7 Pro. I use mine in bed and I've noticed significant drain while it's just sitting on my nightstand during the day. From 90% to 60% in a day or two with minimal use.
30% in two days??!! Mine drops 1% in a day, if that. The majority of times it drops nothing. I had 17% the other day, left it overnight for 8 hours, woke up, and it had 17%. That's too much.

This is all very difficult gauge. I am getting about 12 hours, at least, with iOS 11 with my iPad Pro 9.7”
12 hours seems - depending on usage - decent. That's what I'd get on normal with a bit of intensive usage. I'm glad it's working out just fine for you.

Just try it. Besides, it makes the iPad Pro so much more powerful/useful.
I can't have it work awfully/battery lasting nothing. I love what the new OS has to offer for the iPad, don't get me wrong, but I've been reading reports of performance and in every device other than the latest iPhones, performance and battery dropped. If I could come back to iOS 9.3.4 seamlessly if it goes awry, I'd update in a heartbeat, but isn't it too much of a risk to go now? Especially after reading everyone's answers?


Don't update to iOS 11 in any device.

I have an IPP 9.7 (128 GB wifi only) that wasn't used and most of the time I kept in the drawer. Then I installed the TSTAND in it:
https://goo.gl/64gMJp

(And since then it wasn't removed, because it's easier to leave it that way, removing would wear the stand and require two people). Also had to stop using the Smart Cover, then for some time I only used auto-lock for 15 minutes, later 10 and now 5.

And since then I started watching videos and using it as my single device, after my other IPP 9.7 was sold. Even this IPP 9.7 (256 GB Wifi+Cel) didn't have a 10% degradation in the battery. And I am sure it was used a lot.

In two months the degradation of the battery (from the IPP 9.7 128 GB) increased from 6, 7% to 10, 11. That alone would be acceptable, if for the first time during the day I didn't have to recharge the IPP 9.7 because the battery dropped to almost 0.

I don't remember having to do that since I had an iPAD 4, and when I sold this iPAD 4 it had almost a 30% degradation. And I don't believe at all that even by watching videos during the day and with 50% brightness the battery could be used so fast.

I would be deeply surprised if iOS 11 haven't done something wrong with all the batteries out there, and of course this can only benefit Apple, that forces you to replace your battery or the device, so this must be on purpose and is far from being a conspiracy theory.

My IPP 10.5 won't stop using iOS 10.3.2 and I plan to cease updating apps too, if they are going to become broken in it. I want my equipment to last as much as possible, and replacing any used battery (at least for iPAD) is either costly or can't be done.
You have said that battery performance dropped so my point is certainly moot. Just a thought: I don't think, that battery capacity is important unless battery life itself drops. I have 91% capacity in only one year and 170 cycles. Yes, it's low. Really low. But it lasts the same as when it was new, so I don't really give importance to that statistic.
The battery died in a day, but that doesn't say much. I am inferring that duration was low as well - say, 6 hours - because on heavy usage days (For example, I was doing some Pages work that was due too soon so I used it all day (13 hours, yes, it has happened) and the iPad died in a day, but I cannot complain about battery life.


Anyway, thanks all for tuning in. Appreciate it.
 

Perene

macrumors 6502a
Jun 29, 2015
835
301
Netherealm
I don't think, that battery capacity is important unless battery life itself drops. I have 91% capacity in only one year and 170 cycles. Yes, it's low. Really low. But it lasts the same as when it was new, so I don't really give importance to that statistic.
The battery died in a day, but that doesn't say much. I am inferring that duration was low as well - say, 6 hours - because on heavy usage days (For example, I was doing some Pages work that was due too soon so I used it all day (13 hours, yes, it has happened) and the iPad died in a day, but I cannot complain about battery life.
The more % it increases the less you can use the device without recharging it. Of course we can't expect to watch several hours of video (in a single day) and not having the battery dropping to 0%.

The problem is that a lot of factors can influence how much battery is going to be wasted. The level of brightness, the options you have enabled, the apps (if they aren't optimized for iOS 11, and I think most were not at least for a while)... oh, and there's also clean install, hard reset, the idea we should discharge the battery to calibrate...

Since it's never easy to measure these things then the most obvious way to do it would be to continue using as before. After all if we didn't change ANYTHING then we can only expect for the iPAD/iPhone to last the same from before iOS 11.

And that's when I noticed is not lasting as it should. I believe it has improved a little compared to the first weeks, but the fact remains that after iOS 11 we are wasting more battery than before. No question about it.

And if that's the case then follow my advice and don't update to iOS 11. Or at least wait until everyone says it's not draining a lot. I reached the conclusion that updating to a major new version right after its release is stupid.

Edit: looked into two different battery apps minutes ago and now it says 8%. Could it be that it took a while to adjust this data? 8% seems a realistic number.
 
Last edited:

FeliApple

macrumors 65816
Original poster
Apr 8, 2015
1,268
459
The more % it increases the less you can use the device without recharging it. Of course we can't expect to watch several hours of video (in a single day) and not having the battery dropping to 0%.

The problem is that a lot of factors can influence how much battery is going to be wasted. The level of brightness, the options you have enabled, the apps (if they aren't optimized for iOS 11, and I think most were not at least for a while)... oh, and there's also clean install, hard reset, the idea we should discharge the battery to calibrate...

Since it's never easy to measure these things then the most obvious way to do it would be to continue using as before. After all if we didn't change ANYTHING then we can only expect for the iPAD/iPhone to last the same from before iOS 11.

And that's when I noticed is not lasting as it should. I believe it has improved a little compared to the first weeks, but the fact remains that after iOS 11 we are wasting more battery than before. No question about it.

And if that's the case then follow my advice and don't update to iOS 11. Or at least wait until everyone says it's not draining a lot. I reached the conclusion that updating to a major new version right after its release is stupid.

Edit: looked into two different battery apps minutes ago and now it says 8%. Could it be that it took a while to adjust this data? 8% seems a realistic number.
I thought you were using Coconut Battery for Mac. iOS battery apps are useless. Apple removed the battery API in iOS 10 I think, so statistics are wrong. Only Coconut is accurate. And iBackUpBot for Windows I think, but I think it isn't free, and I'm not sure how it works.
I do agree that factors (Brightness, usage, settings) are crucial in determining if it lasts what it has to. For instance, if I increase the brightness to 80%, and only use YouTube, and heavy games, then 14 hours would be impossible, and maybe, what, 7-8 hours would be decent?
Anyway, what it matters is how much is lasts, and if it doesn't last even close to what I'm getting on iOS 9, as you say, then yes, iOS 11 did screw up battery life, including the 9.7 Pro. An even more accurate example would be comparing apples to apples (i.e, as you say, your battery life on iOS 10/9, and your battery life on iOS 11 with the exact same usage and settings.)
Do you know how many hours approximately you're getting, and can you describe your usage broadly? Maybe I can offer a thought regarding how long should your iPad last. Thanks for your reply.
 

Perene

macrumors 6502a
Jun 29, 2015
835
301
Netherealm
Do you know how many hours approximately you're getting, and can you describe your usage broadly? Maybe I can offer a thought regarding how long should your iPad last. Thanks for your reply.
I don't think informing anyone what was done during the day in the device would be useful, except perhaps Apple in the bug report (providing the 2 logs they ask, and for that you have to install something in your device to monitor during the day, and take note of the time the logs were created).

Note: I sent these logs I believe in Sep 28, and they haven't replied me at all after that.

I am saying this because you would have to inform how all your settings are configured, for example you will have to measure the level of brightness with this app (iOS does not inform the percentage):
https://itunes.apple.com/br/app/battery-life-app-health-200-for-iphone-ipad/id1182385439?mt=8

And I am also using paid apps here... such as this one, for videos:
https://itunes.apple.com/br/app/nplayer-plus/id539397400?mt=8

It could be that the app itself is wasting more than the rest and needs an improved version (who knows? maybe it's not optimized enough), and you wouldn't know that unless you were using the same version in another iOS or in iOS 11 in your own device.

I can't also state every single thing I did during the hours the device was used, so 3 hours just reading ebooks might waste 30% of battery while watching a video nonstop in nPlayer 55%.

There's no way for me to take note of everything I did that contributed to waste the battery and get only X hours during the day. Unless you want me to let the iPAD running an 8 hour video or anything of the sort.

That's why I said that if nothing changed in the way you use your device and you now have to recharge after 7 hours instead of 8, 9 (and ONLY AFTER iOS 11) then you know something went wrong.
 
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FeliApple

macrumors 65816
Original poster
Apr 8, 2015
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459
I've seen better but it works for me.

11.1 beta 4
Wow that seems high. If it doesn't include background music, then 11.1 is good.

I am currently showing 5 hrs 11 min usage 11 hrs 12 min standby with 55% battery left on 11.1 beta 5.
Depending on usage, it doesn't seem too low. Seems normal maybe? If usage is really light then yes, it might be a little low. If it isn't, then it's fine.
 

Royksöpp

macrumors 6502a
Nov 4, 2013
929
1,010
Usually the people that have ridiculously good battery life use very basic apps that use hardly any power. I use many power intense apps on my 10.5 and battery life can range from 8-10 hours.
 

FeliApple

macrumors 65816
Original poster
Apr 8, 2015
1,268
459
Usually the people that have ridiculously good battery life use very basic apps that use hardly any power. I use many power intense apps on my 10.5 and battery life can range from 8-10 hours.
Well I once used just iBooks, nothing else. All on-screen time, and it lasted 22 hours. That's just about the lowest possible usage other than 100% background music. Once in the summer I used a heavy app on 100% brightness and broad daylight and it lasted something like 2 hours on 75% or so. Even on lower brightness, I've found that battery life can vary in like 3 hours solely depending on usage.
This is all on iOS 9.3.4, if I shall remind, and so there is no increased OS usage, and standby drain is non-existent. In iOS 11 - particularly the first versions - this might not be correct in all cases. Then again, I don't know how the initial versions of iOS 9 were. Any similar problems?

Nope, no music. Just updated it to beta 5 last night so I'm sure I'll receive the same results. Y'all on 11.1 or 11.0.3?
Nice! That's really good battery life.