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Battery issues since update?
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And there are plenty of threads about that, while this one is more about battery life unrelated to performance.
Recently always turn off suddenly with battery at 25%, or even 30%.
iPhone 6S iOS 11
Your battery needs replacement.
Hi, could any post a comparison of iPhone 6s or iPhone SE of 10.3 vs 11.2.1. I think I will be updating to iOS 11 but am afraid it'll reduce my battery life by a lot
Hmm, how to replace the battery? I need to go an Apple store or an iFixit store, right?
Apple store if you’re not comfortable doing it yourself or iFixit kit if you’re into opening up your gadgets.
3 months and a brand new IPP 10.5 (iOS 10.3.2., haven't updated) already has 7-8% degradation. Seems the battery is being wasted too fast. I use the new charger and the one that came with it.
My old IPP Pro 9.7 (2016) took a lot longer than this to have that level of degradation. And I haven't even upgraded to iOS 11. I installed a tvOS profile to prevent that.
That just proves battery is a main issue in these Apple devices and unless they can fix this (say, improving from 10 to 15 hours) I'll never buy from them again.
I don't believe the apps are innacurate. I wonder if iPADs can have their batteries replaced.
Edit: the same app is now saying 5%, after a while. The real number is being read correctly after we remove from the charger (when it is at 100%) and let the iPAD waste more battery, waiting for a few minutes. Still I think this number is quite high.
My old IPP Pro 9.7 (2016) took a lot longer than this to have that level of degradation. And I haven't even upgraded to iOS 11. I installed a tvOS profile to prevent that.
That just proves battery is a main issue in these Apple devices and unless they can fix this (say, improving from 10 to 15 hours) I'll never buy from them again.
I don't believe the apps are innacurate. I wonder if iPADs can have their batteries replaced.
Edit: the same app is now saying 5%, after a while. The real number is being read correctly after we remove from the charger (when it is at 100%) and let the iPAD waste more battery, waiting for a few minutes. Still I think this number is quite high.
Some phones come under 100% from factory. My 6+ was like 104% of design capacity and my 6s+ was 96%. My 8+ is 102%. It can grow a little in the first 100 cycles. Always read at 100% charge.
iPads can have their batteries replaced, Apple do it as part of their refurb process. I doubt your battery has actually lost 8%, more likely it was under the exact mAh spec it is being compared to. You will also get variance in readings over time dependant on temp of the battery and a number of other factors, batteries are an analogue, chemical thing, not digital elements, you <will> get variances.
You mean read the battery’s mAh capacity at 100%? Why though? What difference would it make?
Because I assume the poster assumes that the phone started out at 100% design capacity from factory. So if coconutBattery or what not is reporting the phone to be at 97% it may not be that the phone lost 3%, just came that way from the factory.
If you mean why take a design capacity reading with coconutBattery only at 100% charge -- because it will be more consistent. I've found that reading battery capacity at 50% varies more and is less accurate than when reading at a full charge.
Makes sense. Thanks. My old 7 Plus has dropped 8% of its battery capacity over the past 3 months. I bought it in May 2017, and it’s been hovering around 99-98% for 5 months, and then after updating to iOS 11, dropped rapidly.
I’ve documented it.
Right now it’s at 89%...
It does when you see with your own eyes the same figures for CoconutBattery and all these iOS apps. Whoever is spreading that iOS apps don't show battery stats correctly didn't produce any evidence, not that I have seen.
4% loss in 15 days? Woooowwwwwwwwwww dude
I ain't never going to update this device to iOS 11... it's quite obvious what the endgame here is.
The developers of the iOS apps themselves provide that information, like Lirum, for example.It does when you see with your own eyes the same figures for CoconutBattery and all these iOS apps. Whoever is spreading that iOS apps don't show battery stats correctly didn't produce any evidence, not that I have seen.
4% loss in 15 days? Woooowwwwwwwwwww dude
I ain't never going to update this device to iOS 11... it's quite obvious what the endgame here is.
Guys - dunno and its early but 11.3 is awesome on battery Life. I am amazed
Correction: now the apps show 3, 4%. So this confirms that the battery stats are not accurate and we need a few more full charge cycles or wait for a while until the data read by these apps is closer to the real degradation.