Q: iPhone 4s Battery Life?

Nothing new to say, just adding my voice to say that my battery also seems to last about 10hours max whether I use it or not! Grrr...

Up until last week I was reliably getting 2.5 to 3 days of battery life with my 4S.  I really don't use it that much.  99% of the time the phone is in standby mode.  I am on 5.0.0.

Last week, suddenly, my phone started chowing battery.  This literally happened overnight.  I couldn't even keep the battery going for more than 8 hours without a charge.  Aside from a couple phone calls and a 20 minute game of Angry Birds the night before, I didn't use the device the whole day.  It is worth mentioning, Angry Birds mysteriously crashed on me twice that evening.  Something I'd never seen before.  Also worthy of mention, I'd been getting in to the habit of "cleaning" out my apps at the end of the day.

I tried *EVERYTHING* (short of a full reset) to get the battery life back.  I disabled EVERYTHING.  Not even airplane mode helped.

In a last ditch effort I fully powered the phone off and put it on the charger for a night.  During the night the phone automatically powered itself on and I subsequently powered it back down and continued to charge it.  The next day, the battery life was slightly better...I managed to get about 16 hours but, not nearly as good as before.  I noodled with more settings and played some more Angry Birds.  I did not "clean" my apps at the end of the day like I had been.  Last night, I charged the phone again while it was awake and today it is back to normal.  The phone has now been running for almost 10 hours and has only consumed 10% of its battery life.

My suspicion is that this is a result of a software issue it is an unhandled thread or something of the such.  It may be related to a specific app.  Angry Birds?

Well, IOS 5.1 has been seeded to developers and the early word is it makes battery life worse!

can you tell me your usaage settings? because i would to get two days out of mine.

my battery is ok, no problems, but i can't seem to get more than a day and a half with everything off!!!

I do have latitude (for good or for bad, I like seeing where I'm spending my time) running in the background, so I understand thats using GPS and data from time to time, however that hasn't changed from where I had "ok" battery to now having terrible battery life.

I think I'm just going to have to live with plugging the phone in at work, so that I can still have it usable when I don't go straight home. Or turing off push, lattitude, etc. Shame iPhones don't have the ability to schedule peak and off peak sync settings like you can on androids.

I have a battery drain of 30 percent per hour!!!   My phone is dead in less than 3 hours!!!!!

I thought this archived thread about the difference between fetch and push mail could be interesting. Under certain scenarios, push may be overrated:

iPhone 3G, Fetch vs. Push - What are the differences?

It may just be fetch 1hr or manual is the safest option. But if you test the differences, that might prove interesting. It's also conceivable that using Exchange with push will yield different results depending on server-side config.

Good luck!

Lets hope that this isn't something like Carrier IQ related.

1AppleADayNoWay wrote:

 

I thought this archived thread about the difference between fetch and push mail could be interesting. Under certain scenarios, push may be overrated:

 

iPhone 3G, Fetch vs. Push - What are the differences?

 

It may just be fetch 1hr or manual is the safest option. But if you test the differences, that might prove interesting. It's also conceivable that using Exchange with push will yield different results depending on server-side config.

 

Good luck!

Exactly. For me, i set to push because, I have very few emails on the account on my phone. Setting to push will mean, when there is email coming in, server side will push it to the phone. If there is no email, the server will not push. Hence no propagation to the phone.

However, if set to fetch at predefined interval, whether there is email or not, the phone will propagate the server to refresh and check for email... which to me, will be worse for battery life. But if you receive a lot of email every minute, then setting it to fetch every 30 minutes or 60 minutes, will reduce battery drain because the phone propagates the network only once every 30 or 60 minutes to download all the email at one go.

This is my 2 cents worth.

@Miless - so in the end it all depends... but also there is the possibility that a "push" config may become power hungry in a low reliability network scenario...

@Michael G. - ...or it may be the opposite, i.e. Apple couldn't make a complete fix for the battery issue and it took them a longer time because they didn't have enough feeback from the devices because CIQ was not (entirely) active lollllloll. I mean, when they were calling users to install some sniffing app for debug purposes, was it CIQ? lolll. It used to be Apple "knew" what its users wanted lollll

1AppleADayNoWay wrote:

 

@Miless - so in the end it all depends... but also there is the possibility that a "push" config may become power hungry in a low reliability network scenario...

 

@Michael G. - ...or it may be the opposite, i.e. Apple couldn't make a complete fix for the battery issue and it took them a longer time because they didn't have enough feeback from the devices because CIQ was not (entirely) active lollllloll. I mean, when they were calling users to install some sniffing app for debug purposes, was it CIQ? lolll. It used to be Apple "knew" what its users wanted lollll

CIQ could be place in there by AT&T under their exclusivity deal where AT&T agreed on Apple terms subjected to this to be placed in there.

I hope someone can check if this appears on Verizon's iPhone (iOS 4.5).

But its extremely annoying to know that your every move is being scrutinized.

Well, according to this http://www.theverge.com/2011/11/30/2601695/carrier-iq-controversy , the answer would be yes for AT&T and no for Verizon... but hopefully some testing app will pop up for the iPhones... with independent testing to validate any of this. Also, on December 14th, the carriers and CIQ will have to formally disclose it all... Extremely annoying. But the upside to the story is further awareness. Unfortunately, the presence or absence of the CIQ software is not the end of the matter, as manufacturers and carriers could develop/use similar yet different software to do exactly the same thing...

I am losing 30 to 40 percent per hour. I don't know what to do.  No one it seems can help.  Not even apple.

I have a iphone 3gs. Was pleased as punch with the battery life before downloading ios5 and the supposed fix. Now I'd like to punch APPLE! Tech tried to help, but not only did they NOT help, they lost some data.

Phone crashes often with the battery charge showing 40%-60% life. Crashes while talking, surfing whatever. Tried turning almost everything off! What the **** good is it if you must turn everything off anyway!!!

Here's my usage and standby time:

I had a battery drop from 50% to 35% while I was sleeping about 8 hrs. Before I went to bed I closed all the application turned of 3G and WiFi. The suprising part was even though all aplication and network was turned off there was a lot of usage of increase. I think it was around 1 to 2 hrs of usage time while I was sleeping.

Now I just tried to reset my phone and let the battery dropped to 0% and going to charge to 100%