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iPhone 4s Battery Life?

My iPhone 4s battery seems terrible! Almost equivalent to my 3GS and it's terrible battery life. When I got my iPhone yesterday and restored from backup I noticed nothing really changed with minimal usage and standby! Is this normal or should I consider setting it up as a new phone because maybe something is running in the background that's causing it to drop a percentage every few minutes under light usage? Input would be great!

Posted on Oct 15, 2011 7:14 AM

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12,787 replies

Oct 19, 2011 11:55 AM in response to BoomStreet

Here's my own observations (posted in the Hardware forums):


https://discussions.apple.com/thread/3412832


I have an iPhone 4S, with Sprint. I use Gmail and had it running on hourly fetches. After power off the phone and then back on, and also draining the battery after a full recharge, things seem to be better (but still not anywhere close to the advertised battery life). Using 3G puts a huge drain on the battery, from what I can tell. I am switching push on for my Gmail account to see if that changes anything.

Oct 19, 2011 12:09 PM in response to Scarface.

The only way I found to prolongthe battery life was in settings / general / network /cellular data (disable)This prevents information from being exchanged with siteslike:push Apple, deploy.akamaytechnologies and other ftps.(thisconsuming charge of battery)who want to use the netstat app (free in the Apple store) may verifywhat I am saying.If the "cellular data" is on, the device exchangesinformation.I find it absurd to have to shut down the exchange of datavia the cellular network on a cell phone to preventinformation unknown to be exchanged with people who donot know who they are, without my permission and also byeating up my battery for it.I look forward to a solution that is not trade my iphone fora handset of another make.

Oct 19, 2011 12:10 PM in response to Chris Mearing

For info the iPhone 4s has just gone past 35 minutes with the new SIM card installed and it hasn't dropped 1% yet. The old SIM card would have got through 2% by now.


I don't want to get people's hopes up. I'm going to run this on for another half hour and see what happens. I'm then going to turn things back on in stages and see what happens to battery life.


Stay tuned.

Oct 19, 2011 12:25 PM in response to Scarface.

Listen everyone.


We shouldnt have to disable or turn off ANYTHING at all! This phone should be working completly fine and last the 200 hours of standby like it was advertised to do. Obviously there is something wrong and Apple needs to send a fix for it.


I did talk to the Apple rep yesterday and he said they are checking the forums.


Everyday though, I am seeing my battery last about 1-2 hours longer with the same amout of use. I have done about 3 calibrations and they seem to work. I expect about Sunday or mid next week to be getting about 2 days of battery with moderate to heavy use. If not , then there is a problem.

Oct 19, 2011 12:38 PM in response to Scarface.

Since my update to iOS 5 on Sunday, my iPhone 4S runs empty within 6 hours (from 100 to 0%!) That never happened before that. I close all the apps regurarely but during the day I need more apps to be working: GPS, facebook, wordfeud 🙂, iCal, mail, I don't even use Safari that much. Why! I read that this was an issue on the beta version. It shouldn't be in this alfa version. HELP!

Oct 19, 2011 12:47 PM in response to bwulfe

iPhone 4s 32GB GSM (AT&T) black


Received mine via UPS on launch day.

settings -> general -> usage -> time since last full charge:

Usage: 2 hours 47 minutes

Standby: 4 hours 37 minutes

Combined Total: 7 hours 24 minutes (I don't know how this is possible when I unplugged it from the charger at 7:30 am, which is a little less than 5 hours ago?)

Current battery remaining: 64%


Turned off everything that isn't necessary as posted numerous times in previous posts beginning Monday. Same problems occurring as evidenced by my above statistics.


NOTE: Our household also upgraded iPhone 3GS 16GB and iPad1 wifi only 64GB to iOS5 and seeing similar battery draining problems.


In my humble opinion this is a combination of iOS5 and iCloud software issues and the fact that the A5 processor requires a heck of a lot more power than it's predecessor. Look at the dramtatic increase in battery hardware from the iPad1 to the iPad2. The original iPad had a couple of batteries that occupied about 65% of the bottom of the case. The iPad 2 has 3 batteries that occupy 100% of the bottom case. Why? Because the processor needs it!


As an earlier post notes, the battery increase from the iPhone 4 to 4S was insignificant. So why would Apple make a significant change in the iPad and not the iPhone when moving to more powerful processors? Because they needed to get a product to market and weren't ready to launch the iPhone 5 (which all reputable sources show a larger cased version to accommodate a larger battery).


Apple will most likely come out with some firmware patches that will help to resolve this issue. But no matter what device you own, if you're running iOS5 and iCloud you're going to see a reduction in battery performance. More functionality requires more power. In the case of the iPhone 4S, don't expect to run Siri and all of the other features that a smartphone is supposed to be able to run (without having to toggle things on and off all day to spare battery life) and expect a full days use out of it with the current hardware configuration.


I'll stick it out until next Thursday and if Apple can't get it right by then they'll be taking another 4S back and I'll wait for the 5. Unless Android comes up with something better.

iPhone 4s Battery Life?

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