Q: iPhone 4s Battery Life?

Then there is at least a third cathegory, myself includes who do not complain about battery issues, have reasonable runtime of their battery. In most cases this cathegory are the people who do not have impossible expectationa for their iPhone battery capacity.

To use your car analogy, with the iPhone 4S we got an new type of car (because none of the cars on the market has sych dynamic), that is gapable of: very high speeds, very heavy workloads, gong where no other car has been before, accepting all kinds of add-ons and tuning of it's engine and operation etc. It is also capable of running many miles (much more than otherwise) if only you don't try to push it to it's limits otherwise (eg. insist to run all this way at the highest possible speed, or with the highest possible load or with all possible, even junk tuning you come upon).

This is because Perpetuum Mobile has not yet been invented and thus not incorporated into your iPhone 4S. It may, possibly be integrated in some later version ;-) But.. some people will tell you this is phylosophically impossible (not to speak of 'sicence') and, had you lived in the middle ages, you might even fear your head cut for spreading such, or what not else...

Until mobile phones come with integrated nuclear reactor, or ZPM of sorts, we just need to aling our expectations with current technology reality.

The iPhone 4S, like anything else created by humans have it's design imperfections. There are unaccounted for use scenarios, for which the software does not yet have workarounds. In situations like this, you have these options:

- wait for the software to be amended (for which you will help by submitting report to Apple. Not in this forum!)

- avoid using the features/add-ons/situations in which excessive power usage occurs.

- junk yur warranty, fix it yourself and declare victory.

Sometimes, Genius or Customer support people do not have full knowledge about Apple products. When I got my phone replaced, I had the build version 9A405 but the phone that went back to apple had 406. So, I just saw an apple store the other day and dropped in to ask does 'Restore' update the build and his reply was 'No, iPhone's build is 9A405 only and probably other products like iPad or iPod will have 9A406 or other build'...I was afraid to restore cos my replacement phone had good battery, but then I restored and the firmware was updated to 406 and phone battery remained unchanged....

This is simply dumb....

Maybe Apple stores should start putting quotatation marks around the word "Genuis" for ironic effect.

If you say so, then apple should actually put quotation marks on the specifications of iPhone 4S.....Lets hope Apple does what it does best....

In this thread, j_brahma is using Battery Doctor by Beijing Internet. And he has somehow pulled off 9 hrs usage and still left with 56% which is totally preternatural. Thought I suspect he might have plugged in sometime and have forgotten about it. His screenshot does not show the full screen of the battery usage window.

My doubt anyway is, Battery Doctor indicates the charging time remaining and it also indicates the charging process carried out (Fast Charge and Trickle Charge). The problem is the App charges my 4S way too long. Even when the plug appears in the battery icon (when the percentage is hundred), the app indicates Trickle Charging mode and the time remaining for comple charging will be around 1 hr 30 mins or more.

I do not know whether the app is good for the battery or not cos i belive though the phone has the intelligence to stop the charging once it is at 100%, this app I guess force charges the battery. I dont know whether to use the app or not.

Pavan Kulkarni wrote:

 

In this thread, j_brahma is using Battery Doctor by Beijing Internet. And he has somehow pulled off 9 hrs usage and still left with 56% which is totally preternatural. Thought I suspect he might have plugged in sometime and have forgotten about it

Pretty sure that plugging it in resets the timers and they stay blank until a full charge is completed.

I think I didn't express properly what I wanted to say. What I meant was something like a software issue, which in the most of the cases can be solved by a new software, but of couse hardware issues doesn't count here. If the hardware is OK and you are still having problems, if the update won't solve the problem, then I don't know what will! I'm on my second 4S and, like I did on my first one, I am STILL having the speaker's outgoing call no audio (in this forum there is a topic about it and thousands of people complaining about it). I was about to get it replaced for the third time when I decided to wait for the new iOS. I don't really think it is a good deal buying an expensive phone and then have to exchange it several times like people are doing with the 4S. For me, if replacing the phone doesn't solve the problem, getting the new software could possibly do. I just hope for the best!

No... It generally shows "iPhone has been plugged in since the last full charge"... So the screenshot is missing the 'cellular usage' tab... Hence this above statement is not visible...

Pavan Kulkarni wrote:

 

Sometimes, Genius or Customer support people do not have full knowledge about Apple products. When I got my phone replaced, I had the build version 9A405 but the phone that went back to apple had 406. So, I just saw an apple store the other day and dropped in to ask does 'Restore' update the build and his reply was 'No, iPhone's build is 9A405 only and probably other products like iPad or iPod will have 9A406 or other build'...I was afraid to restore cos my replacement phone had good battery, but then I restored and the firmware was updated to 406 and phone battery remained unchanged....

 

This is simply dumb....

It appears that customers don't have exclusive rights to be misinformed. 

Pavan Kulkarni wrote:

 

In this thread, j_brahma is using Battery Doctor by Beijing Internet. And he has somehow pulled off 9 hrs usage and still left with 56% which is totally preternatural. Thought I suspect he might have plugged in sometime and have forgotten about it. His screenshot does not show the full screen of the battery usage window.

 

My doubt anyway is, Battery Doctor indicates the charging time remaining and it also indicates the charging process carried out (Fast Charge and Trickle Charge). The problem is the App charges my 4S way too long. Even when the plug appears in the battery icon (when the percentage is hundred), the app indicates Trickle Charging mode and the time remaining for comple charging will be around 1 hr 30 mins or more.

 

I do not know whether the app is good for the battery or not cos i belive though the phone has the intelligence to stop the charging once it is at 100%, this app I guess force charges the battery. I dont know whether to use the app or not.

First, I am pretty sure that if the app were not good for the hardware, Apple wouldn't have approved it for the store.  Second, the Apple supplied charger for the iPhone seems, to put out 1Amp.  That's no trickle charge.  However, by the looks of the app, it can read the charge that the hardware in the phone is applying to the battery, and the normal way to charge a lithium polymer battery is to start out fast (max amps), then slowly reduce the amperage as the battery approaches full charge, then about 95% or so, drop to 1/10 of the maximum charge rate to finish the charge.  Given that a chip in the battery package prevents overcharging, I don't think there is any damage this program can do to the battery.

I suddenly got unusual battery drain after I migrated to iCloud. Iphone was warm all the time and battery would not last more than 5 hours till it powered off. I did usual things and found out that Battery drain was down to sending data on 3G or Wifi continuously.

All my other IOS devices were syncing happily with no problems.

By switching off syncing for various Icloud apps like Mail etc,  one at a time, I discovered that the Bookmarks file was the culprit. I  took the option of deleting the bookmarks file on the Iphone and resyncing from the Cloud.

Instant fix.

I guess there must have been a corrupted file on the Iphone. Restoring from Backups did not fix the problem.

I now have normal acceptable battery life. Over 30 hours for me...

This might help someone on here with similar problems.

Chris CA wrote:

 

Pavan Kulkarni wrote:

 

In this thread, j_brahma is using Battery Doctor by Beijing Internet. And he has somehow pulled off 9 hrs usage and still left with 56% which is totally preternatural. Thought I suspect he might have plugged in sometime and have forgotten about it

Pretty sure that plugging it in resets the timers and they stay blank until a full charge is completed.

Well, usually.  I plugged mine in this morning to transfer some files into my book reader, and do the iTunes backup, and when I unplugged it, the reading was 95%, but the counters reset to 0.  Maybe that 'full charge' thing is 'fuzzy'.

Iyengar wrote:

 

I suddenly got unusual battery drain after I migrated to iCloud. Iphone was warm all the time and battery would not last more than 5 hours till it powered off. I did usual things and found out that Battery drain was down to sending data on 3G or Wifi continuously.

All my other IOS devices were syncing happily with no problems.

By switching off syncing for various Icloud apps like Mail etc,  one at a time, I discovered that the Bookmarks file was the culprit. I  took the option of deleting the bookmarks file on the Iphone and resyncing from the Cloud.

Instant fix.

I guess there must have been a corrupted file on the Iphone. Restoring from Backups did not fix the problem.

I now have normal acceptable battery life. Over 30 hours for me...

This might help someone on here with similar problems.

Let's hope that IOS 5.1 will be a bit more tolerant of this data corruption thing.  It might decrease traffic on this forum....

I am not very confident any of these 'battery doctor' type applications does anything related to charging the battery. At best, they will inform you when it is 'fully' charged.

This is because charging lithium-ion batteries is tricky and dangerous process and given all other restrictions put on applications in iOS, I don't believe Apple has left this option to damage the phone open to anyone.

What follows form this is that

- your iPhone will charge perfectly without any "battery doctor" apps, as long as you leave it connected for enough time.

- these applications exist for the pretty graphics etc.

Battery Doctor is just a more detailed monitor and does NOTHING to change how the phone is actually charged.    It simply provides more details of progress and status.

dkalchev wrote:

 

I am not very confident any of these 'battery doctor' type applications does anything related to charging the battery. At best, they will inform you when it is 'fully' charged.

 

This is because charging lithium-ion batteries is tricky and dangerous process and given all other restrictions put on applications in iOS, I don't believe Apple has left this option to damage the phone open to anyone.

 

What follows form this is that

- your iPhone will charge perfectly without any "battery doctor" apps, as long as you leave it connected for enough time.

- these applications exist for the pretty graphics etc.