Bad battery life from iOS 10.2.1 to iOS 10.3.

[Shirasaki]

The keyword is unstable.

Then how to replace the "unstable" battery? Also, Apple diagnostic for battery runs for a good while, not just a snapshot.

I still think iOS 10.2.1 drains battery extensively. And I am not alone. I also notice constant CPU usage whenever I drag down NC and check my Widgets. I have no idea whether iOS 10.3 will resolve this issue when going official, but I hope it will.

I hope the constant CPU usage is caused by my widgets, not by the system itself.

In conclusion, I will keep watching.

 

[Mlrollin91]

Then how to replace the "unstable" battery? Also, Apple diagnostic for battery runs for a good while, not just a snapshot.

I still think iOS 10.2.1 drains battery extensively. And I am not alone. I also notice constant CPU usage whenever I drag down NC and check my Widgets. I have no idea whether iOS 10.3 will resolve this issue when going official, but I hope it will.

I hope the constant CPU usage is caused by my widgets, not by the system itself.

In conclusion, I will keep watching.

Software has nothing to do with hardware. Apple's battery diagnostic is more simple than you think. I have extensive time talking with genuis' about how it works. My friend is one. Apple's battery diagnostics takes a 2 week average when it spits out the health %. Therefore it is averaging all your numbers for 2 weeks. If the number is about 80% more than not, then the average will be above 80%, showing that your battery is not failing. But, because Coconut shows real time battery health, you can on your own verify that the battery is consumed and unstable. Eventually, if you keep pestering Apple, their diagnostics will sync up with your personal experience. So in reality, Coconut is more accurate than Apple. Because Apple is looking at an average while Coconut is real-time.

The reason why the tests takes so long is because it's transferring logs. Such as usage patterns and history. Your average usage time, your average standby time and what apps you use most frequently.

 

[Shirasaki]

while Coconut is real-time.

Could you give me a source of this claim? Thanks.

Software has nothing to do with hardware

Assume you play the game, battery of your MacBook will surely drain faster. Similar to iOS. If there is a process constantly using CPU, the battery will drain much faster. Also, before iOS 10.2, I don't see any significant battery drain. I don't think the battery will suddenly become unstable once I install iOS 10.2.1 beta 1.

 

[Mlrollin91]

Could you give me a source of this claim? Thanks.

Assume you play the game, battery of your MacBook will surely drain faster. Similar to iOS. If there is a process constantly using CPU, the battery will drain much faster. Also, before iOS 10.2, I don't see any significant battery drain. I don't think the battery will suddenly become unstable once I install iOS 10.2.1 beta 1.

What do you mean a source for the claim. You've used the app. You can see the battery life change in real time. You can see the time clock on he bottom of the app and it updates every 15 seconds. You see when it's charging, what current it's drawing and so on. That literally means real-time. If you need more proof than this, email the developer. He gets back to you quickly. I've asked him multiple questions over the months.

As for the second part. I understand what you are saying. But based on all of the information that you have provided me. Your battery drain seems to be because of a consumed battery. Not a rogue processor. If that was the case, your standby and usage times would be identical.

 

[stooovie]

Seriously just don't judge your battery life from using beta software. It's a software in flux and inferring anything from it is imprecise and ultimately useless. Betas are for developers to get ready for public release and that's it. Use your device in a normal way when 10.3 comes out and only of then you still have problems, run Coconut and go from there.

 

[deano1972]

So on iBackupBot it says my Full charge capacity is 3000/2890, for 103.8%. Did I get lucky with this battery?

My 2 month old replacement iPhone 7 shows above design capacity on iBackupBot too

How accurate is this program?

 

[C DM]

My 2 month old replacement iPhone 7 shows above design capacity on iBackupBot too
View attachment 688214
How accurate is this program?

https://forums.macrumors.com/thread...ios-10-2-1-to-ios-10-3.2031532/#post-24285434

 

[m4v3r1ck]

My 2 month old replacement iPhone 7 shows above design capacity on iBackupBot too
View attachment 688214
How accurate is this program?

The consensus in this thread is "accurate"! It reads the hardware, see previous posts from @MIrollin91

 

[Mlrollin91]

My 2 month old replacement iPhone 7 shows above design capacity on iBackupBot too
View attachment 688214
How accurate is this program?

It is very common for batteries to be above 100%.

"My current maximum capacity is higher than the design capacity. What's wrong?

"Design capacity" is the capacity your battery should have, when it left the factory. As battery manufacturing is still a more or less chemical process, it may be higher (congratulations) or lower when it is put into your MacBook." (This applies to any battery, not just MB)

http://www.coconut-flavour.com/coconutbattery/#faq

 

[deano1972]

The consensus in this thread is "accurate"! It reads the hardware, see previous posts from @MIrollin91

Interesting .. looks like I've got a good battery then

 

[Mlrollin91]

Interesting .. looks like I've got a good battery then

Yes you did. I'm at 148 cycles on my 7Plus and still above "design capacity". But I take care of my battery. I prevent cold, heat and letting it drop below 10%.

 

[deano1972]

Yes you did. I'm at 148 cycles on my 7Plus and still above "design capacity". But I take care of my battery. I prevent cold, heat and letting it drop below 10%.

That's holding up well after 148 cycles

I rarely let mine drop below 20% so hopefully it will maintain it high capacity a while.

Was interesting to check the cycle count on my old ailing 5s battery at 76% capacity .. 823 cycles!

 

[Mlrollin91]

That's holding up well after 148 cycles

I rarely let mine drop below 20% so hopefully it will maintain it high capacity a while.

Was interesting to check the cycle count on my old ailing 5s battery at 76% capacity .. 823 cycles!

Thats actually quite good. Considering it should have dropped below 80% at 500 cycles. Its now "unstable" but you should still get a decent charge out of it.

 

[deano1972]

Thats actually quite good. Considering it should have dropped below 80% at 500 cycles. Its now "unstable" but you should still get a decent charge out of it.

Yes it does still suffice as a spare phone/iPod.. last charge managed 5 hours usage over 90 hours standby on 10.3 beta 2 so it's usable still at 40 months old.

 

[Shirasaki]

Yes it does still suffice as a spare phone/iPod.. last charge managed 5 hours usage over 90 hours standby on 10.3 beta 2 so it's usable still at 40 months old.

Wish my battery was as good as yours but... *sigh*.
i may need to seek for battery replacement.

 

[deano1972]

Wish my battery was as good as yours but... *sigh*.
i may need to seek for battery replacement.

Reading this thread I reckon your battery may unfortunatley have premature failure.
I suspect these early betas of 10.3 are exposing failing batteries though, the standby drain on my 5s has noticeably increased compared to 10.2. You could try a dfu restore back to 10.2.1 but I think realistically a replacement battery is the way to go now if it's your main daily use phone.

 

[Shirasaki]

Reading this thread I reckon your battery may unfortunatley have premature failure.
I suspect these early betas of 10.3 are exposing failing batteries though, the standby drain on my 5s has noticeably increased compared to 10.2. You could try a dfu restore back to 10.2.1 but I think realistically a replacement battery is the way to go now if it's your main daily use phone.

This issue emerges when I use iOS 10.2.1. So restoring to that version won't solve the problem.
I will try to replace the battery when possible.

 

[m4v3r1ck]

Being very excited about coconutBattery, I just made a little 'Warning Centre' in Excel. I'll use this frequent till the end of time of my current iPhone 6 Plus and/or its battery - AC ended 12/2016 - and of course after buying a new iPhone in about 1-2 years!

Cheers

Edit: deleted excel sheet

 

[stooovie]

Apple won't replace battery of iPhones on beta OS anyway, make sure you restore to release software.

 

[Shirasaki]

Apple won't replace battery of iPhones on beta OS anyway, make sure you restore to release software.

Yes. The only thing I could do is waiting.

 

[Shirasaki]

Update: after a couple of days close watching, the battery maximum capacity is back to 80% level and coconut battery does not report consumed battery. A bit worse than I thought before but better than a few days ago.
Keep watching.

 

[uandme72]

Is there any harm in keeping the iPhone connected to charger or USB port of computer throughout the day even after the battery has reached 100% and using it while remaining connected.

 

[Mlrollin91]

Is there any harm in keeping the iPhone connected to charger or USB port of computer throughout the day even after the battery has reached 100% and using it while remaining connected.

Yes and no. If you leave your battery plugged in 24/7, it will decrease the health of the battery because its not getting used. Batteries need to be used to maintain being healthy. Now if you leave it plugged in overnight every night, that is fine because the device stops charging and will begin to discharge. Once it hits 95% it will begin to recharge. But because you are using it throughout the day, it counteracts any possible damage for keeping it at 100% for 6+ hours.

 

[jr866gooner]

Coconut battery is my go-to. It has been for several years now. The others are just as accurate, but Coconut is easy to use and easy to read.

Is it an iPhone app from the App Store?

 

[C DM]

Is it an iPhone app from the App Store?

It's a Mac app.