Did the lap test also. Mine is getting around 5:45-6:00 for each percentage. Started at 80%, ran it until 75%. Now when I am actually using the phone (for the test, I just set it down, didn't touch anything except the lap button), I lose about 1 percent every 1:30-2:00. Standby time is still excellent.
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Batterygate??
- Thread starter M33-1
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Fully charged 100%
44min use: 6 sms's, 10 min facebook app, 5 min email reading.
2h standby
= 88% omg
Before ios5, it took 7-8 hours in stand by to drop to 99%...
Something weird up with mine..
I did a restore last night, installed absolutely nothing, did not enabled icloud, only enabled location services, been on standby ever since:
55%
usage 9hr 35m
standby 19hr 28m
That usage figure is whack, it's been sitting on desk doing nothing all that time.
Everyone who is having battery drain issues.
Go into location services and turn everything OFF except "Cell Network Search". Then report back tomorrow. I think something in there is the cause of this problem. By process of elimination we can narrow it down.
Go into location services and turn everything OFF except "Cell Network Search". Then report back tomorrow. I think something in there is the cause of this problem. By process of elimination we can narrow it down.
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My first 2 charge cycles I lost 2% overnight
After messing with settings to what I thought would lessen the battery use I lost 20% the third night
I did settings> general> reset> reset all settings and things seem to be back to normal now.
My first 2 charge cycles I lost 2% overnight
After messing with settings to what I thought would lessen the battery use I lost 20% the third night
I did settings> general> reset> reset all settings and things seem to be back to normal now.
Agreed. I restored my phone last night and never opened the maps application this morning, yet I still had a grey arrow for "Traffic"...
Leads me to believe that there is something polling for GPS, even when it is not requested.
I have turned off all except for Siri, Maps, and Cell Network Search now.
Ok, I've already done some back-of-the-envelope calculations with standby battery drainage. First my data: from my last post, I mentioned my iPhone 4 lost 3-4% battery when left off the charger overnight. For the purposes of these calculations, we will assume a 4% drop (worst case) and the night lasted 8 hours. Now, in the hour or so since I last posted, I have left my iPhone 4S on my desk at work and have not touched it. For the record, it sat there for 51 minutes in a good signal area (full bars) and did nothing except receive 3 emails and vibrate for each one (I did not turn on the screen to look at the emails). I just checked it, and the phone lost 2% of the battery during that time. The settings of the 4S and the 4 are essentially the same (location services on, connected to wifi, 3 email accounts, all set to push, notifications on).
First, let's look at the iPhone 4. If we take the 4% drop over 8 hours as typical, that corresponds to 0.5% drop per hour of standby. This means the iPhone 4 should get 200 hours of standby time (not quite as high as Apple's 300, but I probably had some stuff turned on that they didn't). More importantly, let's say your normal work day is 16 hours long. During that time, you can expect to lose around 8% of your battery due to the iPhone just sitting in your pocket or on your desk. That's not bad considering all the things it does.
Now, let's look at the 4S. It lost 2% over the course of not even an hour (but we will round it off for the purposes of this calculation). If we have a loss rate of 2%/hour, that gives 50 hours of standby life per day. That is one quarter of what Apple claims! More importantly, over that same 16 hour work day, you can expect to lose 32% just to standby (the phone is just sitting there)!
Looking back on this analysis, it makes sense. I used to have around 40-50% left on my battery after a day of normal usage with my iPhone 4. Now, I am ending the day with 10-20% after normal usage on my 4S. What's the difference between those two numbers? About 30%!
The iPhone 4S is doing something in standby mode that is killing the battery! Apple needs to figure out what it is and release a software update ASAP!
First, let's look at the iPhone 4. If we take the 4% drop over 8 hours as typical, that corresponds to 0.5% drop per hour of standby. This means the iPhone 4 should get 200 hours of standby time (not quite as high as Apple's 300, but I probably had some stuff turned on that they didn't). More importantly, let's say your normal work day is 16 hours long. During that time, you can expect to lose around 8% of your battery due to the iPhone just sitting in your pocket or on your desk. That's not bad considering all the things it does.
Now, let's look at the 4S. It lost 2% over the course of not even an hour (but we will round it off for the purposes of this calculation). If we have a loss rate of 2%/hour, that gives 50 hours of standby life per day. That is one quarter of what Apple claims! More importantly, over that same 16 hour work day, you can expect to lose 32% just to standby (the phone is just sitting there)!
Looking back on this analysis, it makes sense. I used to have around 40-50% left on my battery after a day of normal usage with my iPhone 4. Now, I am ending the day with 10-20% after normal usage on my 4S. What's the difference between those two numbers? About 30%!
The iPhone 4S is doing something in standby mode that is killing the battery! Apple needs to figure out what it is and release a software update ASAP!
Update 2: Seeing 3 to 6min range of wifi "Internet usage" per battery percent drop
I am sure this is an imperfect test given the number of variables, but I used my configuration per earlier post and ran safari while hitting back to back links and downloads with typically 3 to 4 min times per drop in 1% point of battery. When I actually stopped and read some of the material downloaded, which is more consistent with my usage pattern, I was in the avg 5 to 6min range, which works out to the advertised Internet run time. Once I load up some additional apps, I think I will be able to exercise this one better. Standby times seems to still be strong as well.
Planning music and 3g call test with this baseline "clean" configuration. And then I will add back in items to attempt to isolate issue.
I am sure this is an imperfect test given the number of variables, but I used my configuration per earlier post and ran safari while hitting back to back links and downloads with typically 3 to 4 min times per drop in 1% point of battery. When I actually stopped and read some of the material downloaded, which is more consistent with my usage pattern, I was in the avg 5 to 6min range, which works out to the advertised Internet run time. Once I load up some additional apps, I think I will be able to exercise this one better. Standby times seems to still be strong as well.
Planning music and 3g call test with this baseline "clean" configuration. And then I will add back in items to attempt to isolate issue.
I'll try it, but it wasn't indicating that had used location services in last 24 hours, only setting time zone had the indicator next to it.
I am testing these system service options within Location Services, and it happened upon me to compare it to my 3GS.
My 3GS actually has ALL location services lit up, including all system services, weather, maps, etc....it's a cornucopia of location services.
In Standby Mode, my 3GS has went down to 97% since coming off charge at 8am. My 4S? Has lost 30% in the same time span.
So, if this is iOS setting based, why is the 3GS immune? Dual core chip? It seems there is just something off with the 4S.
My 3GS actually has ALL location services lit up, including all system services, weather, maps, etc....it's a cornucopia of location services.
In Standby Mode, my 3GS has went down to 97% since coming off charge at 8am. My 4S? Has lost 30% in the same time span.
So, if this is iOS setting based, why is the 3GS immune? Dual core chip? It seems there is just something off with the 4S.
My phone just died at 7 hrs usage and about 13 hrs standby (couldn't remember the exact standby figure).
HOWEVER, the same as you, I wondered what the usage figure was about, because its been sat on my desk too, I maybe sent a few messages but the actual total usage by me would be no more than 1 hr so what the hell is using it??
I guess something in the background clocks up the usage figure? maybe GPS polling, Fetch emails etc?
not sure if it's been discussed yet, but while going thru my settings last night I noticed that Facebook is set for about 8 different types of push notifications. I realize not everyone has Facebook, but it's worth looking into. I haven't fully tested the settings on a full charge yet, but am doing so today
interesting wondering if it's really notification center causing the issue, maybe on of the ios5 apps like cal, mesg, email, reminders etc Anybody try shutting everything down yet in notification center?
doesn't seem to effect maps or Siri. I told Siri I was hungry she still located restaurants near me. I used to even see a % drop asking Siri questions I'm still at 100%! I really think the compass might be the culprit here.
Edit: just FYI usage was 10min Standby was at 3hrs. 39 min. I JUST now dropped a percent.
Edit: just FYI usage was 10min Standby was at 3hrs. 39 min. I JUST now dropped a percent.
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There's so many scattered data points in this thread. So many variables (edit: and by this I mean all of the differences in configurations of our phones). It's mind boggling. When looking for the root-cause of a problem it's necessary to eliminate as many variables as possible. Granted, it's more appropriate for Apple QA to be doing this (have you called 1-800-MY-APPLE yet to report your battery problem?)
For the sake of meaningful comparisons, we need a simplistic baseline iOS configuration. The best such configuration is simply to do a clean reinstall of iOS, set up as a new phone, & change absolutely no settings whatsoever.
Any takers?
Oh, and I volunteered my wife's phone for this configuration yesterday (though she insisted on having FB installed and wifi turned on -- otherwise it's stock settings). Her phone is still dropping 2% per hour but it's still not possible to identify it as hardware or software because was don't have an identical phone w/ an identical setup to compare -- at least not yet (tonight I will configure my phone similarly). My phone, on the other hand, which is not currently a stock install, didn't drop a single percentage point during my hour drive to work, all the while I was listening to tunes and sending texts via Siri. Since then my phone's been on the desk, not being used, purely standby and has dropped 6% in an hour.
For the sake of meaningful comparisons, we need a simplistic baseline iOS configuration. The best such configuration is simply to do a clean reinstall of iOS, set up as a new phone, & change absolutely no settings whatsoever.
Any takers?
Oh, and I volunteered my wife's phone for this configuration yesterday (though she insisted on having FB installed and wifi turned on -- otherwise it's stock settings). Her phone is still dropping 2% per hour but it's still not possible to identify it as hardware or software because was don't have an identical phone w/ an identical setup to compare -- at least not yet (tonight I will configure my phone similarly). My phone, on the other hand, which is not currently a stock install, didn't drop a single percentage point during my hour drive to work, all the while I was listening to tunes and sending texts via Siri. Since then my phone's been on the desk, not being used, purely standby and has dropped 6% in an hour.
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There's a thread on the apple forums people are saying their data usage is hitting like 5gb per day without them even doing anything
There's a thread on the apple forums people are saying their data usage is hitting like 5gb per day without them even doing anything
it's got to be 4S problem..
Left 32G iphone 4S, right 32G iphone 4
I have no 2 working sim cards other than a foreign sim working on AT&T network.
Disable most of the location services for 4S, delete and re-add all mail account. Did couple full discharge already.
The difference shouldnt be that big!!!
Left 32G iphone 4S, right 32G iphone 4
I have no 2 working sim cards other than a foreign sim working on AT&T network.
Disable most of the location services for 4S, delete and re-add all mail account. Did couple full discharge already.
The difference shouldnt be that big!!!
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Thats about what Apple said they would have for usage - depending on what you are doing. Let's round your numbers for easy math - 2:30 usage for every 35% battery. That would equate to 5:00 usage for 70% and around 7:15 usage for 100%... totally rounded numbers, but you are within the 6-8 battery usage ball park.
Locations services on, all apps except Weather can use location services (same as my 4). For the system location services, everything off except for cell network search.
Found some info on these location services:
http://support.apple.com/kb/HT4995
Per link above:
"Crowd-sourced Wi-Fi and cellular Location Services
If Location Services is on, your device will periodically send the geo-tagged locations of nearby Wi-Fi hotspots and cell towers in an anonymous and encrypted form to Apple, to augment the crowd-sourced database of Wi-Fi hotspot and cell tower locations. In addition, if you are traveling (for example, in a car) and Location Services is on, a GPS-enabled iOS device will also periodically send GPS locations and travel speed information in an anonymous and encrypted form to Apple, to be used for building up a crowd-sourced road traffic database. The crowd-sourced location data gathered by Apple does not personally identify you."
http://support.apple.com/kb/HT4995
Per link above:
"Crowd-sourced Wi-Fi and cellular Location Services
If Location Services is on, your device will periodically send the geo-tagged locations of nearby Wi-Fi hotspots and cell towers in an anonymous and encrypted form to Apple, to augment the crowd-sourced database of Wi-Fi hotspot and cell tower locations. In addition, if you are traveling (for example, in a car) and Location Services is on, a GPS-enabled iOS device will also periodically send GPS locations and travel speed information in an anonymous and encrypted form to Apple, to be used for building up a crowd-sourced road traffic database. The crowd-sourced location data gathered by Apple does not personally identify you."
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Actually you logged an hour of additional usage so the delta is about what should be expected.