Q: iPhone 4s Battery Life?

sbailey4 wrote:

 

Here is clarification on what Apple says is usage:

 

Viewing Usage Statistics

Awareness of how you use your iPhone and knowing how long your battery typically lasts can help you improve its battery life. You can view your iPhone usage statistics by tapping the Settings icon on the Home screen and choosing General > Usage. Under the “Time since last full charge” heading you’ll see two items:

• Usage: Amount of time iPhone has been awake and in use since the last full charge. The phone is awake when you’re on a call, using email, listening to music, browsing the web, or sending and receiving text messages, or during certain background tasks such as auto-checking email.
• Standby: Amount of time iPhone has been powered on since its last full charge, including the time the phone has been asleep.

Can read the full battery info here: http://www.apple.com/batteries/iphone.html

 

 

rphunte42 wrote:

 

In the absence of clear definition of just what increments usage from Apple, we just have to guess.  However, there SHOULD be a significant difference between usage and standby times, so if your are essentially the same, you probably have a rogue process that didn't terminate, and is continuing to use the processor.  There are some issues with the cell phone tower switching it would seem, which I hope are addressed by IOS5.1. 

BTW, you paid way too much for your iPhone.

That's hardly a clarification, more an obfuscation.  Surely there is some easily defined statement of just exactly which internal functions (such as the email check mentioned) constitutes usage.  If they can measure it, they should be able to define it, specifically.

I wonder how many users start playing music at random, and then just click the sleep button, unplug their headpones from their ears, and leave it playing?  What OTHER apps might respond the same way?

I have read that the iPhone terminates most tasks ater 10 minutes of non-use, but that others will continue until actively terminated.  Others, which I call 'internal processes' continue as long as the phone is powered.  So which of these increment the 'usage'?

hello friends, I wanted to clarify that only those who have posted here already exchanged theiphone 4 s in the other Apple store, just wanted to inform you that did not receive a new buta refurbished one, that's what he says in the contract of guarantee, given as a new but has been used by someone, I saw a lot of people here to say I already on my third and fourthiphone, never has an original as the first.

1AppleADayNoWay wrote:

 

Pavan Kulkarni wrote:

 

[...]Even with the bad battery, I still feel I am top of the food chain....

It is ironic that reducing caloric intake will yield a longer and healthier life, whereas status will not even result in a longer battery life lollll.

I think you mean 'standby', not 'status'.   Right?

My doctor one told me that if I would eat only a double handful of rice and milk a day, then I would live 100 years.  I asked who would WANT to live that way?

Jameson! wrote:

 

Doesn't that sensor also control the screen on/off when holding the phone up to your ear?   If so, it should be on at all times, or at least whenever the phone is picked up.

 

Also, an infrared sensor would be used to sense the presence of something near or in front of the phone, as it is a visible sensor.   The Siri lift to talk feature has nothing to do with visible objects, but only motion of the phone.   Something completely different in my view.

Motion sensing?  Makes more sense, since my raise to talk is off, and the phone still turn off the display when I have the phone to my ear.  Might also explain why 'raise to talk' isn't reliable.

haizz wrote:

 

I managed to install the very-very new iOS version and turn off 3G on my brand new iPhone 4S. The phone initially shown some noticeable battery drainage with factory-installed iOS version. So I turned off 3G, cellular data, Bluetooth, automatic date&time, maybe something else. Now after first charge&discharge cycle I've got 12 hours 46 minutes of usage and 2 days 4 hours of stand by. Most of usage was music, random stuff in contacts & menus, few camera shots, ~10 mins of FaceTime, iCloud syncing of contacts & photostream via wifi, about 1 hour 30 minutes of phone calls. I'm wondering, how does it compare to similar usage on iPhone 4? I have a feeling that my old iPhone 3G would still last more, although I didn't use video camera, push or iCloud there. What do you guys think?

That's very good battery life.  Just be ready for a few people here to call you a liar, and a fanboy, and other unkind names. 

As far as I know, there isn't a way to determine if you're phone is sleeping besides miniscule battery drainage.

It's like checking if the fridge light turns off by checking your electric bill.

I charged my phone this morning and left it on standby for 2 hours. I see 4 minutes of usage and and I lost over %1 percent of power. However, I did turn the screen on half a dozen times monitoring the usage and battery status.

Even though we use the term sleeping, our phones are never completely asleep. It's a really low power state.

rphunte42 wrote:

 

ricky_tang wrote:

 

I read a post a couple of days ago that sounded plausible. The problem may be the phone not sleeping when in standby. This person examined the diagnostic log and determined that the phone is not going to sleep, basically. If I find this post I'll repost it here.

 

That reminded me of using the iOS 5.0 beta. During one release my phone became warm laying on my desk in standb as if it was in use the entire time. That was fixed (for me at least) during the beta.

 

Users here have posted descriptions similar to my description above. Maybe people should post their diagnostic logs?

That may be true, but how can we tell if it is going to sleep?  It's rather like checking that the light in the fridge really goes off when you close the door, or the state of life of the famous cat in the box.  Maybe someone can point us to an app that does run all the time, and that can monitor the 'sleep state' of the phone.  Frankly, I thought the 'sleep' function just meant that the screen was dark, and the touch sensitive part was inactive.  As far as I can see, just about everything continues when I press that button, or allow 'auto lock' to set itself.  Just what IS 'sleep mode'?

Hey dont shoot the messenger. Just passing on info.  And it seems pretty clear i thought

[off topic] can someone please tell how can I stop receiving this messenges on my e-mail, I already turn all of theoptions to off on my preferences. I justa can't take it anymore, and for what I see its a problem with no solution. =[

rphunte42 wrote:

 

[...]constantly bad-mouthing the 4S, and making outrageous, and unproveable statements about it?  [...]

I make "outrageous" statements all the time on many subjects - it seems like that mostly because I think differently. On the other hand, I fail to see how I've been constantly bad-mouthing and making unproveable statements about the iPhone. I've recognized the quality of the design, the strenghts of iOS, the value of the software ecosystem, the talent of their engineers - and on many occasions. On the other hand, I've pointed out to a fact, which applies to users who come here - and those people have battery issues - and it's that the device is less than amazing compared to the 4 and doesn't deliver because battery life is an integral part of the value you get or that you don't get in the case of those users - it's not about the beauty of the circuit board. I've also pointed out to call quality - I've never said that the phone has poor call quality but surely that component of the device can be improved and I've never seen any iPhone user tell me about the amazing call quality of the device. I mean, you have to be fair. Each device and OS has strenghs and weaknesses and caters to different crowds and yields a different type of experience. The iPhone has never been and never will be a perfect device. The bad-mouthing often comes from the Apple users in relation to Android, WP7, BB and is often accompanied by a distorted enthusiam - and I've successfully toned it down on many occasions in the forum. Steve set a terrible example and some of his users followed in his condescending footsteps. One thing I've consistently challenged is lifestyle and status - and I will continue to do so, everywhere I go - and in many respects this applies to all smartphones.

Top right of the page, "stop email notifications".

rphunte42 wrote:

 

sbailey4 wrote:

[...]

http://www.apple.com/batteries/iphone.html

 

 

rphunte42 wrote:

 

In the absence of clear definition of just what increments usage from Apple, we just have to guess.  However, there SHOULD be a significant difference between usage and standby times[...]

That's hardly a clarification, more an obfuscation.  Surely there is some easily defined statement of just exactly which internal functions (such as the email check mentioned) constitutes usage.  If they can measure it, they should be able to define it, specifically.[...]

Throughout history, there are always moments of darkness, and surely your presence here constitutes some form of return to the stone age in terms of support - now we're debating the nonexistence of the iPhone "low power profile sleep mode" - there is simply no such thing. You come here to help fellow users, yet you're not even aware of Apple's definition of usage. You talk about guessing what it means, then you accuse me of making unproven statements, and finally you speculate on details whereas you acknowledge the meaninglessness of such things by saying that non-active usage should be significantly different than standby time (the phantome usage pattern was very often 50% of standby time so all this discussion is irrelevant). Of course Apple knows the intricacies of their device, but we will never know - it's called close source. My god.

The core of the problem lies within what Sticktron had said a long time ago in his brillant and poetic pseudo-code riddle:

_________________________________________

^^^^ This. QFT.

There is no Software, or Hardware bug, or defect,

Simply a matter of You Can't Power a Cell radio, wifi radio, GPS, and continuously running uploads (iCloud Photo Sync...   ) using a battery lighter than a big Nut,

and expect to get any kind of substantial life out of it.

Restoring/Resetting/all-these-voodoo-fixes are Placebos...

[CrazyMFGenius moreTruthPlease:YES];

Fine,

#DEFINE A @"a lithium battery does function like a niCad battery does" // #LookItUp) /// camelCase is mine

#DEFINE B @"removing suspended Apps from the Switcher will SLOW your device DOWN" // gotta wake up, reload from sloooow flashRAM

#DEFINE C @"Backing up your every move via net connection, 24/7, is a phenomenal advancement, but it's Expensive"

// one more and I'm out

+ (void)IWantToSaveBattery:(BOOL)doYou {

    if (doYou) { // and you should, do

        [Human taptheShinyOnOffButtonsWithBesideThemAndPurpleArrowsBecauseTheyAreHoldingOpenAl   lTjreeRadiosAndByDivineASSERTIONareNotAllowedToTurnOffUntilThatAssertionsLiftme n tByItsMaker];

    }

    // phew

}

PS I dev from my phone, have a hackintosh in my room I use to root, and upgrade (and Jam over iTunes with my Wii RockBand DrumKit (all praise Team GarageBand@APPLE.

_________________________________________

You will find this on the "5.0.1 update--even worst battery life" @start=825. Further bits @765 and 540. On the current thread, you might also look @start=5550, 5640 and 5790. Granted, he has an unusual style, but there is merit to what he had said, in my opinion. I don't understand why Apple can't implement a final fix for all users. Most likely there are other problems than this one (sim, carrier side stuff, data sanity, and some flaky handsets or parts) and other subtle considerations we'll never know. And possibly, as he also alluded to also, Apple has lost control of the quality control of the apps in the store and they're mostly badly coded and this compounds the persistence of the stuff that hooks on the radios, and it never releases them and they remain active all the time and drain the battery. They can't find the balance in the handling of the services - as "bad apps" or whatever pile up on the handset, a time comes when the conditions are met for this to happen, even months after no symptoms occured. Maybe resetting and all resets the counter towards inevitability. My god we're way beyond discussing the meaning of "usage" and which "one setting" solves it all and will reward you with some points from Scarface. Or was this problem solved already and the phone is already yielding its maximum potential and the remaining issues are hardware and data corruption related? Anyways, I rest my case. I'm not going back to the Middle Age.

Good luck and take care!

1AppleADayNoWay wrote:

I make "outrageous" statements all the time on many subjects - it seems like that mostly because I think differently.

 

Yes, I noticed.

 

 

On the other hand, I fail to see how I've been constantly bad-mouthing and making unproveable statements about the iPhone. I've recognized the quality of the design, the strenghts of iOS, the value of the software ecosystem, the talent of their engineers - and on many occasions. On the other hand, I've pointed out to a fact, which applies to users who come here - and those people have battery issues - and it's that the device is less than amazing compared to the 4 and doesn't deliver because battery life is an integral part of the value you get or that you don't get in the case of those users - it's not about the beauty of the circuit board.

 

I guess Apple needs to define 'amazing'.  Frankly, I think the phone is amazing, but if your ONLY criteria is battery life, then I can see how you would disagree.

 

 

I've also pointed out to call quality - I've never said that the phone has poor call quality but surely that component of the device can be improved and I've never seen any iPhone user tell me about the amazing call quality of the device.

 

Cell phone call quality is very largely dependent on some rather variable situations.  I have no problem with call quality, but then I live in a large metropolitan area, and generally have adequate signal strength.  The audio is 'phone call quality', which means that your voice is filtered, digitized, sent with time division multiplexing (chopped up in pieces), then switched between cell towers, and recomposed by a computer, then resent to the person on the other end.  It is amazing that most of the time it is disginguishable as human speech, and this goes for all cell phones.  You aren't going to get even phone line quality on a cell phone.

 

I mean, you have to be fair. Each device and OS has strenghs and weaknesses and caters to different crowds and yields a different type of experience. The iPhone has never been and never will be a perfect device. The bad-mouthing often comes from the Apple users in relation to Android, WP7, BB and is often accompanied by a distorted enthusiam - and I've successfully toned it down on many occasions in the forum. Steve set a terrible example and some of his users followed in his condescending footsteps. One thing I've consistently challenged is lifestyle and status - and I will continue to do so, everywhere I go - and in many respects this applies to all smartphones.

I only have things to say about Windows phones from recent experience.  My reason for not buying an Android phone is that even though the OS gets updated regularly, users don't usually get to enjoy those updates without buying a new phone.  This is the direct fault of the service providers, and the OEMs.

Helpppp my i4s battery 83%..Usage 55 minutes...Standby 2 hours, 21 minutes...this normal or not??

wifi = off

bt = off

service location = off

siri = off

push mail - off

T.T

Seems off to me. Try Davidsch's reset process in the other forum as listed below. Follow exactly as stated.

davidch North Carolina

For anyone new to the thread be sure to go through these steps to address the battery after updating to iOS 5.0.1:

1. Reset all settings (settings app-> general-> reset)

2 a. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)

2 b. If you do not get the complete new setup screen with language setup and setup as new phone or restore from iTune/iCloud backup, be sure to go back to #1 and reset all settings again (it should happen the second time)

3. Turn off system location services timezone and iAd (settings -> location services -> system services)

4. Fully discharge battery (until you get the spinning wheel and it shuts off)

5. Fully recharge battery (overnight if possible)

In my experience this improves the Standby battery drain issue significantly in most cases.  It reduces drain from 2-4% or more per hr to 0.5% or less. It has worked for many, many users now. If it does not work after a few try's you may have a real battery or hardware issue and should contact Apple.  Good Luck!