iOS 4 draining the battery on older iPhones?

While the iPhone 4 may be getting all the attention with its antenna issue, all other iPhones are facing another issue with iOS 4.  While at first thought to be a teething issue with older iPhones and iOS 4, it appears that the new OS is thrashing battery life for previous generations of iPhones.

According to Apple support forum user Calgarystar, there is a thread on Apple’s own support forums discussing the issue.  On the 31 page forum post, users are complaining that their battery life is dropping at far higher rates than with iPhone OS 3. 

While one might first think that the users are running background apps and that’s draining the battery, users are saying that they have removed all running applications with no change in battery drain.  “There is something seriously wrong with this update. I have my phone in sleep for about 10 min and the battery went down 4% more.”.

There have been a wide range of potential issues from phones being stuck trying to tether to possible applications not truly being killed when taken out of the multi-tasking stage. “ I just went back in there and hung in until it connected with ATT (and told me to contact ATT if I wanted to add tethering..duh) and I hit 'cancel' and the activity finally stopped”.

The battery life issue has become far too widespread for it to be isolated to a select group of users.  As Apple has yet to publicly comment on the issue and there is no known fix (for the masses),  iPhone users are forced to wait for an official update to get the issue resolved. 
 

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I noticed that on my iPod Touch. When playing music ONLY, my battery use to last a full day and a half before needed a charge. After upgrading it lasts for about 1/2 a day. I too closed all so-called running apps and just ley the phone sit after a full charge over night. And I turned it on after a 1/2 day and nearly 50% of the battery had been used. Once I played music I listen to 2 mixes that lasted 60 mins each and my iPod popped up the message that my battery was 20% low. When it use to say that I could use it for nearly another hour. Now right after saying 20%, in just 30 mins it is red and powers off. I stopped using it now as I have a POS iPhone 4. The new phone simply has a bigger battery.

Now that the new OS drains the battery much faster, now the iSheep can see why USER REPLACEABLE BATTERIES IS SUCH A GOOD IDEA.

I never seen such a flock of dumb@$$'S

hey all, i upgraded to ios4 on my 3gs a few days back, and it is very true, i am dropping close to 40% battery every day with no gaming, no wifi, no bluetooth, no internet, and just handfull of calls. any idea if ios 4.1 will fix this?

Looks like Apple needs to take the Microsoft approach to testing stuff: Just give the software away for a year, and let the feedback flow in.
When you have more testers, the software tends to be a lot better.

If this was a Microsoft product, everybody and I mean EVERYBODY (including those who don't use/own a Microsoft product) would have ripped them to shreds and attacked anything and everything Microsoft. I hope the die-hard Apple fans (aka fanboys) will realize that Apple can (and do) make huge mistakes and royally screw up as they did with iPhone 4 and now the iOS 4 (not testing it thoroughly with their entire compatible product line up).

When Microsoft screws up (and they do), it seems so much bigger because the fact is Microsoft has a wider presence than Apple.

I am a Microsoft guy, but was looking forward to buying an iPhone 4 (not sure now unless all these issues are fixed). I have issues with Steve Job's and his god complex (or it just seems that way to me), but won't deny that the iPhone is a commercially successful product with style and merits.

Hopefully Jobs/Apple will just own up to their mistakes and do whatever it takes to correct themselves/the products, for their own sake.

Microsoft does drag their feet a bit at times, but they do own up and make amends, even if it is costly or downright embarrassing (Kin anyone?).

Just sharing a thought.

3G user here, battery problems are the least of my problems now since I can't even take a picture anymore with my phone as camera roll can't retain any picture taken. Well done Apple.

I have the 3gs and as far as I can tell the battery is a little better for me.. The only thing I don't like is the texting bug, as someone else as already mentioned, when you do a long text, when you go to send it it over laps the top and looks funny. Small bug, one that can be fixed, but I don't like it all the same... Also a small problem I have noticed with this multi tasking is if a program goes wrong in anyways, like my spotify play list did. You close it, but it saves it as it was, so the only way to fix a program is the restart your phone. That sucks balls lol

Curious if a fresh restore (and no backup) fixes this.
It did seem to drain faster tho on my iphone3gs before I upgraded to iphone4

My biggest problem with iOS4 is the general lag on my 3g iPhone. When try to txt someone, I click on the icon and I have to wait 5-10 seconds before it pops up and is usable. Sending pictures in email also take a long time. The battery is going down quicker, but I think some of that was expected with iOS4, IMO. I'll wait to see what the next updated does but if it's not any better, I may just downgrade.

You people wine about everything. Its a more powerful OS built for a phone that has better battery life running on older hardware.

Its like putting Win7 on a much older laptop. It will kill the battery faster.

Strangely, even with alllllllll these apps open, it's not draining my battery much more than before. I actually had to make them a thumb up for implementing multitasking correctly, unlike the competitors. But it seems I'm the only one who runs it so fine!?

YES! I'm not crazy... I noticed this last night on my ipod touch. At least I'm not the only one having battery issues. Hopefully this will get fixed soon.

hdca18 said,
The battery life on my iPhone OS 4 is also very poor.

You have a battery on your OS? I only have one in the iPhone itself, but if you can tell me where to get one on my OS, maybe it'll make it last longer...

I've downgraded my iphone 3G back to 3.1.3. iOS4 was a headache, and I didn't care for any multitasking. It was annoying if a game got interrupted by a call, but then again I have my phone because I want to take calls more than play games.

From what I've read, this seems to affect 3GS iPhones, probably because of the slower processor and multi-tasking being allowed on it. My 3G has actually been better with the battery since the iOS4 upgrade

No complaints here!

Neobond said,
From what I've read, this seems to affect 3GS iPhones, probably because of the slower processor and multi-tasking being allowed on it. My 3G has actually been better with the battery since the iOS4 upgrade

No complaints here!

I upgraded my iPhone 3G and jailbroke it to enable wallpapers and multitasking, and I still don't see a noticeable battery drain.

I had this with the last 3.x version and a factory restore + backup did not fix it. A factory restore and from scratch rebuild did.

Well that explains it. I upgraded my wifes OS to version 4 and she has been complaining about the battery ever since.

Oh man....I knew something was up with my 3G iPod Touch.....After iOS 4 upgrade my ipod eats battery like I'm serving it on a platter with all kinds of assortments! The battery reaches 20% after only a couple hours of light use, with wifi turned on. In my car I have an FM transmitter that also charges the iPod so I have had increased use out of that since iOS 4. Come on Apple, let's come out with a fix!

I upgraded to an EVO 4G but I still had one left laying around( 3GS 16GB) and I thought I would install IOS4 on this one and sell it. Well I had the phone on standby for 24 hours and it went dead. It has no service and is in airplane mode. I thought maybe I left something on but its been wiped. Left it again and it drained again.

I just saw this post and glad it wasn't just me. I don't think IOS4 is a good upgrade for the 3GS with what I just read and what I had just experienced personally with the battery drain.

Add another one to your list of to DO's APPLE!

Probably something to do with the antennae, the iPhone 4 antennae use more power but have bigger batteries to cope. apple may not have accounted for this so are running previous versions of the iphone antennae at a higher power output. this would account for the reason why battery drains fas even when the phone is sleeping

As many of you I am sure you looked to the support at apple that is linked I Am infact Calgarystar.. I have tried a few new things on my brand new 3gs..

I have the following settings after restoring to factory and as new with nothing on it
1. set up email contacts & calander etc (reset the phone not restore but reset
2. then put apps back on . anything that runs in the background will cause issues (windows messenger is one app causing an issue & others that where released prior to the IOS 4 update but actually not suited for it.. try only ones that got updated

3. The Apps I have that are not causing issues are

GOOD ONES:
Facebook,
Shazam Encore
Battery Doctor Pro
Calgary Stampede,
Converter (one with the two rulers)
Cbc Hockey
Tsn Mobile
Box.net
Bump (to get contacts information
*** PLUS THE APPS ON THE PHONE*** since you can not delete them

Ones I Have Pin pointed to be killing the battery when running or running in the background
1. Windows Live Messenger (I think Microsoft is trying to screw apple with this app)
2. Free Wi-FInder (might make it search when you dont want it to search)
3. Google Earth (could be looking for a location setting when you dont know)
4. Mixologist Drink Recipes (for some reason this one is killing when I use it)
5. Monopoly (however its a game so when you play it surely it will use power tested the other day iand in 2 hrs of play killed the battery 15 percent)
6. Flixster Movies (not sure this one might be ok it will be added to the next bunch) (could be cause it was not updated yet)
7, myStarbucks Canada (I love this app but again searches for location and causes abit of battery drop)
8. Urbanspoon (resturant app might be searching for location settings)
9. Walmart (also has to do with location settings causing battery drain when using)
10. WhatsApp Messenger (although I think this app is ok it could cause its a messenger I have yet to set it up with anyone i know using it so right now this app i doubt has anything to do

With this I have the following settings .. that are working
Airplane Mode - OFF
WI-FI - ON (I use this at home whenever I am on web browser might be an issue with this constantly looking well sleeping if you do not turn it off .. I forgot last night and it dropped from 31 to 26 in 8 hr period.. so that will kill as well as things running in the background I still believe this.
Notifications > ON ....Facebook sounds > ON... Alerts ON Badges >OFF (cause I do not use Badges)
Carrier > TeLUS for me this is where it could make a different with some peoples issues just depends mine is set to >AUTOMATIC

SOUNDS > Leave it set up the way it is I have everything on in there nothing causes issues

BRIGHTNESS > is at 70 percent for me with Auto BRightness >ON

WALLPAPER > is whatever you want it to be

OK NOW THE BIG GENERAL TAB

GENERAL > NETWORK > Enable 3G (ON) Celluar Data (ON) Data Roaming (OFF) Internet Tethering (OFF) VPN (NOT CONNECTED) WI-FI (is my network

BLUETOOTH > OFF

LOCATION SERVICES > ON **** Now for me its been on for about 2 hrs now and on standby without using the phone but like anything if you use it and location service use alot of power so turn it off if you are not using it (for certain apps)

AUTO LOCK - is set to 1 min
Pass Code lock - OFF
RESTRICTIONS > OFF

anything else in the general tab does not matter

MAIL, CONTACTS, CALENDERS
I have one mail account (Windows LIVE)

FETCH NEW DATA > OFF - PUSH - OFF FETCH - Manually

everything else in this Mail, Contacts, Calenders does not matter\

PHONE/SAFARI/IPOD/PHOTOS/STORE have nothing to change

if you are using FACEBOOK

Shake to reload > ON
VIBRATE > ON
PUSH NOTIFICATIONS > ON (for everything in the list anything in here can be changed wont make a difference)

I HOPE THIS HELPS
any questions email me dustin.guspodaryk@live.ca

so, are you saying that the problem is not ios4 but those new program (ios4 compatible) that run on background?.

It's not just older iPhones that have rubbish battery life. After reading reviews from the journos claiming 2, even 3, days of decent usage I finally thought the days of daily (sometimes bi-daily) recharging were over. Alas I was wrong. The iPhone 4's battery is the same as, if not slightly worse than, my 2 year old 3g running iOS 3.1. I suspect some of the juice is lost is through all the heat it produces! It's really quite disappointing and I do hope this gets sorted in 4.1.

mrleee3 said,
It's not just older iPhones that have rubbish battery life. After reading reviews from the journos claiming 2, even 3, days of decent usage I finally thought the days of daily (sometimes bi-daily) recharging were over. Alas I was wrong. The iPhone 4's battery is the same as, if not slightly worse than, my 2 year old 3g running iOS 3.1. I suspect some of the juice is lost is through all the heat it produces! It's really quite disappointing and I do hope this gets sorted in 4.1.

My experience has been the opposite for the iPhone 4. I can go 2 days on the iPhone 4. I had to charge my iPhone 3gs nightly. Idk...usage patterns are probably different which may explain the issue.

My iPod Touch 3G does have that new draining problem. I did do a clean install (without restoring) and it did not work. It's also slower now with iOS 4 than it was before.

I have a 3g, and I definitely notice a shorter battery life with iOS4. I also experience random freeze ups or extreme slowdowns. Web browsing is also much slower.

Oh yeah it's a pain in the ruddy backside, leave an APP open or Safari and you iPhone and/or iPod Touch and it drops into standby and the battery drains like a sinking ship. I have to charge my iPod Touch whenever I use it now because the battery is practically dead.

OK but now I've got the ultimate killer question in relation to IOS 4...
I've got an ipod touch2 with 2.1.1, mother's got an ipod touch2 with 3.x, and I absolutely love how mine has the 'fading' parts on lock and unlock, and think 3.x looks terrible, it just turns on to full brightness with no fade (looks awful), so, does IOS4 reintroduce the classic fade at all?

n_K said,
OK but now I've got the ultimate killer question in relation to IOS 4...
I've got an ipod touch2 with 2.1.1, mother's got an ipod touch2 with 3.x, and I absolutely love how mine has the 'fading' parts on lock and unlock, and think 3.x looks terrible, it just turns on to full brightness with no fade (looks awful), so, does IOS4 reintroduce the classic fade at all?

I'm not an Apple user, but let me get this straight; you're avoiding a whole version jump in software for the only reason that you like the fading animation for the locking?

I'm sorry, that's just sad.

I noticed this on my 3gs, and my boss was complaining last week about it too on his 3gs.

There were quite a few people who beta tested iOS4...you would think that this would have already been known prior to release...

It will likely be fixed in 4.1. You people screaming bloody murder or just want to continue to hate on Apple because you are too cool for school, need to calm down. Downgrade back to v3. It isn't like Android phones don't have their fair share of battery life issues... This is something Apple can likely fix, and they probably will soon.

I have a iPod Touch 2nd Gen and found a solution on one of those forums that worked-- you basically have to restore your device to factory settings-- AND *do not restore* from a backup. Sync it back instead. Apparently there is something leftover from the previous OS that is causing v4 to go nuts. Wiping clean and restoring a fresh iOS4 image works fine, at least for me it did. My iPod Touch wouldn't last a night totally asleep before I did this.

bitslasher said,
I have a iPod Touch 2nd Gen and found a solution on one of those forums that worked-- you basically have to restore your device to factory settings-- AND *do not restore* from a backup. Sync it back instead. Apparently there is something leftover from the previous OS that is causing v4 to go nuts. Wiping clean and restoring a fresh iOS4 image works fine, at least for me it did. My iPod Touch wouldn't last a night totally asleep before I did this.

This is EXACTLY what worked for me a couple of weeks ago. My 3rd gen. iPod Touch's battery would be nearly dead in the morning unless I turned Airplane Mode on to disable the Wi-Fi. After I restored the device to factory settings, my battery drain problem disappeared. Now it can go several days without dying.

This always happens with older smartphones receiving important OS updates. Talk to a RIM user and will tell you how slow the phone gets. Why would they release a useless update like this?.

Of course, Apple should comment on it soon enough. Maybe some fake Jobs mails? Where are they I want to laugh. Or even better some real ones lol

Now it's crazy how the image of Apple is being deteriorated so quickly for some mistakes, but what's even more crazy is that their phone are still considered the best. It's too quickly to point out that "it sucks" without really comparing the other offerings. Should I give Android a +1 if they currently have the exact same problem on their most advanced cell phones? Do you still remember the EVO battery problems?

What was the response for this one? you have to actually wait for the OS to properly detect your battery capacity by waiting for it to run out and then charge it up to the max FOR A MONTH?, an even after that you don't get decent battery life.

I'll just say Apple -1 AND Android -1. And I hope they fix their thing soon enough.

rahvii said,
This always happens with older smartphones receiving important OS updates. Talk to a RIM user and will tell you how slow the phone gets. Why would they release a useless update like this?.

Of course, Apple should comment on it soon enough. Maybe some fake Jobs mails? Where are they I want to laugh. Or even better some real ones lol

Now it's crazy how the image of Apple is being deteriorated so quickly for some mistakes, but what's even more crazy is that their phone are still considered the best. It's too quickly to point out that "it sucks" without really comparing the other offerings. Should I give Android a +1 if they currently have the exact same problem on their most advanced cell phones? Do you still remember the EVO battery problems?

What was the response for this one? you have to actually wait for the OS to properly detect your battery capacity by waiting for it to run out and then charge it up to the max FOR A MONTH?, an even after that you don't get decent battery life.

I'll just say Apple -1 AND Android -1. And I hope they fix their thing soon enough.

Um, you are mixing two different things here...

Android is an OS, and having a battery issue with a select MFRs hardware is not the same.

Apple has complete control over the OS and the hardware, they have no excuse for this to also get through quality control.

As for new OS on old hardware being a problem, again this doesn't also hold true. Motorola Droid users running 2.2 will tell you it does much better than the OS version it was released with.

In the non-mobile market, take PCs that are older and users have found that Win7 is faster than Vista that shipped on the computers, and often times, faster than WinXP that shipped on the devices.

Apple has complete control over the hardware here, that is why you can't go, "well android did this on the EVO." In fact Apple not only has complete control over the hardware, but they are using a very limited design and hardware set in contrast to Android or Windows that runs on a lot of configurations and various hardware.

I've been pulling me hair out over battery usage since iOS4. I figured though it was Google/O2 since the phone seems at worst when it cannot complete a successful mail sync.

Well I turned my phone last night to manual mail sync and noticed this morning the battery was still pretty full. Went into my mail and found that I still have sync issues getting mail from two Google Mail Exchange profiles. I think the phone seems to sit retrying a connection constantly when it can't sync making the phone waste its battery pretty quickly.
I'm not sure its Google at fault here but O2 who's network seems to be damned **** since iOS4 was released. If I shove it on the wifi I can sync my mail.

Steve Jobs I present to you the slow and painful death of Apple Inc. A shame that iOS 4 is bringing down alot of other iphones and ipods with the battery life problem. Hope this will not be the case with WP7

All this problems are because the Wi-Fi conection stays ALWAYS on, even when the iPhone or the iPod Touch is sleeping.

It's a 'feature' of iOS 4: http://www.apple.com/ipodtouch/ios4-software-update.html

The problem is that you CAN'T disable this feature.

I have to connect my iPod Touch every night in order to charge baterry. If I let it disconnected, battery drains because I have a Wi-Fi in my home.

That's all about. If Apple put a Switch to disable this feature, this will be fixed for me.

Cheers.

Jolo said,
All this problems are because the Wi-Fi conection stays ALWAYS on, even when the iPhone or the iPod Touch is sleeping.
Not so much. I rarely ever turn on my WiFi for my iPhone 3GS, but I definitely have had worse battery life since iOS 4.

Jolo said,
All this problems are because the Wi-Fi conection stays ALWAYS on, even when the iPhone or the iPod Touch is sleeping.

It's a 'feature' of iOS 4: http://www.apple.com/ipodtouch/ios4-software-update.html

The problem is that you CAN'T disable this feature.

I have to connect my iPod Touch every night in order to charge baterry. If I let it disconnected, battery drains because I have a Wi-Fi in my home.

That's all about. If Apple put a Switch to disable this feature, this will be fixed for me.

Cheers.

Airplane Mode disables the persistent Wi-Fi. But as I mentioned to someone else, try restoring your iPod Touch in iTunes, but DO NOT RESTORE FROM BACKUP. Basically wipe out your Touch and start fresh. This has fixed the problem for many people, as apparently, there was a process left over from iOS 3.x that causes the new OS to suck down the battery power. When you restore as a new device, this process and the battery drain problem disappear.

Ever since 4.0. I've been starting to hate my 3G even more. It's so slow, texting and typing on the keyboard is such an bitch. Feel bad for those who brought the 3G with a contract couple months ago. Now their stuck with ****ty performance and dead phone.
Since I'm in Turkey for a month, I'm selling this pos here and getting a nexus one when I get back to the states.

techbeck said,
hahaha, Apple cannot catch a break. I wonder if they are going to change their "It Just Works" slogan.

Haha, I was just thinking that as well

iOS4, and the iPhone 4 are turning into a PR horror show for Apple. I hope for the legions of their devout fans that they fix this latest problem quickly

techbeck said,
hahaha, Apple cannot catch a break. I wonder if they are going to change their "It Just Works" slogan.

When did Apple last use that slogan online?

techbeck said,
hahaha, Apple cannot catch a break. I wonder if they are going to change their "It Just Works" slogan.

You would be surprised at what Apple can get away with. Indeed, they are even making money from the Iphone4 antenna problem by selling bumpers.

Northgrove said,

When did Apple last use that slogan online?

It's not so much Apple saying that directly, but they thoroughly reinforce that thought through their marketing.

I have my iphone 3gs for 6 months now, so it's not old. And yes battery life has become shorter. Or maybe it is just the warm weather....

SO yeah.. battery drains faster when they open up more of the system to be used... amazing discovery!!!!!! NOT!
Saw this coming a long time ago. I kept saying, once ios4 comes out and all those things that kept the battery from draining are actually being used, I bet the battery life wont be as decent.....
You do not get more performance and the cost of nothing...... Nothing shocking and should have been expected.

shakey said,
SO yeah.. battery drains faster when they open up more of the system to be used... amazing discovery!!!!!! NOT!
This is happening for people, like me, who are not running applications in the background (I actively close apps as well, just in case). The "fast switching" feature, where it simply leaves the application in memory, on disk, should not be using any extra battery life as its just the application in a paused state. None of the applications that I use, use any real multitasking.

Which means that the piping that they added for something is taking up an unnecessarily large amount of battery life. As one other poster mentioned, this could be the always on WiFi "feature," except I do not use WiFi except in very few cases. However, it could always be a bug ignoring my preference in any one of these new features.

In general, you're exactly right though. For people using the multitasking, they should expect a decrease in battery performance as they are not doing a lot more with the same battery/processor. Regardless, Apple has a big problem considering that it happens for people not using the bigger battery eating features.

Edit: I'm sure they will stealthily fix the issue with no announcement, if they find it in the forthcoming 4.1/4.01 patch.

well, i have an 2 yrs old iPhone 3G and actually with this update EDGE usage yields much better battery usage. While 3G ON it's nearly the same with 3.1.3.

For Wi-Fi however can be a little bit worse though not much.

Hi guys ,

I do own an iPhone 3GS and I think my battery is even better now that I'm on iOs 4 then it was at 3.1.3

My iPhone is faster then it was but still wonder why apple don't permit to downgrade since a lot of users has problems.

Cheer up for iOs 4 but waiting for 4.0.1

I use my iPhone 3GS as an alarm clock. I went to sleep with the battery at 98% and woke up late because the FRIGGIN BATTERY DRAINED. I thought I had my phone muted, but as I tried to turn it on, it was completely dead.

So yeah, there's definitely something wrong with this update.

It's not that the battery is drained faster, we are just calculating the bars inaccurately. We will implement a fix that uses another formula that will make it seem like everything is fine, just as we did with the signal-strength bars...

I have a 3G, and I have had major issues with lag, poor battery performance and most recently, losing touchscreen capabilities. The lag I can deal with..it sucks, but hey, its better than not being able to use the phone when I cant unlock it or turn it off because the screen has become unresponsive. It always happens when I am finishing a call and I go to hit the end call button. It tends to lag/hang there for a second or so and then it locks the screen. Thats when I lose touchscreen capabilities.

I have had to do 7 hard resets since I updated to OS4 because of the locked screen, where before I was at 2 after a year and a half.

Ive been searching to see if others are having the same issue. Hope I can find others having the touchscreen issue so I have more of a leg to stand on when I contact Apple

I personally love just how slow and crappy my 3G is now after the IOS update. Nothing like waiting 30 seconds just about every time I go into something like sending a text before I can actually use it.

+1 for the massive keyboard lag at times also. Good thing we have a unified OS versus one that's written for the hardware it runs on.

Android is looking pretty good these days.

John Nash said,
I personally love just how slow and crappy my 3G is now after the IOS update. Nothing like waiting 30 seconds just about every time I go into something like sending a text before I can actually use it.

+1 for the massive keyboard lag at times also. Good thing we have a unified OS versus one that's written for the hardware it runs on.

Android is looking pretty good these days.


Yes, iOS 4 shouldn't have been released for the 3G.

That's the number one device with trouble with running iOS 4.

This is the same with the iPhone 3G. Battery life does drain faster, specially when using 3G, but so far it is just a little faster drain.

Well, it's a new phone with a new OS. It's not a PC; it's not something you can just swap parts in and out of when they become obsolete.

I don't get how everyone still defends the iphone and ipod touch as so awesome. They might be great from time to time, but if your battery is completely drained after a few hours, it doesn't matter how awesome it might be when it does work.

Aside that, my sony ericsson's battery lasts for about two full days in heavy use, with 3g and wifi on most of the time. It has always had multitasking, and free tethering. Video calls work great here, and I have a good music player with Fm radio. The screen adjusts itself to the amount me light there is and I have gps. I can install all applications I want myself, I can install other firmware and change all my themes. It really does everything an iphone does for a third of the price.

onTh said,
Maybe it's apples way of asking us to get an iPhone 4

All the issues I've had with iOS (BUGS!) would impact the iPhone 4 as well. iOS 4 is garbage, that's all.
Wallpaper, Folders, and Multitasking are amazing - but the cost is that so much else is broke now.

Aah.. it took a tech blog site so long to get this news out. Engadget and Gizmodo should be ashamed they missed this news.. My ipod touch 2G has had the same problem since day 1 and with jailbreak to enable multi-tasking, the battery lasts for around 4-5 hours..

My iPod touch 2G also suffers from this. And by faster, and mean real quick. I guess it's because the WiFi is ALWAYS on, even if the screen is turned off. Even if I disable push notifications. I like the way it was before, the thing would catch up on its notifications whenever it was connected again. I dont see a problem with it, by design it doesnt have 3G or any other mean of low-energy always-on internet connection.

Rudy said,
Didn't we already know that multitasking would drain the battery faster?

I closed all apps in the multitasking area and the battery still go down quickly.

Rudy said,
Didn't we already know that multitasking would drain the battery faster?

"While one might first think that the users are running background apps and that's draining the battery, users are saying that they have removed all running applications with no change in battery drain."

Rudy said,
Didn't we already know that multitasking would drain the battery faster?

Arent we talking about "older" iPhones? the ones that dont have multitasking

Julius Caro said,

Arent we talking about "older" iPhones? the ones that dont have multitasking

No, they're including the 3Gs which has multitasking

But as others have pointed out I didn't quite read the whole thing and some people are reporting that even when quitting apps it's still draining faster

Rudy said,
Didn't we already know that multitasking would drain the battery faster?

Given the extensively crippled 'multitasking' in iOS 4.0 (not a bash, but an observation) it shouldn't really make much difference unless you're actively streaming audio or being directed by GPS as it's not multitasking at all.

I have a 3GS. Not an iPod Touch. Not a 3G. The 3GS. iOS 4.0 has resulted in slow, slow performance. 30+ seconds to load some apps. Safari renders pages wrong (mostly text submission forms), and the SMS app will cause text to jump around and jitter if I have more than 3 lines of text in my outgoing message.

I've restored the phone several times. Twice restore+restore backup, and once restore + "new phone" to make sure everything was "factory fresh". Same result.

iOS 4.0 is a disgusting, buggy mess of crap.

Xenomorph said,
I have a 3GS. Not an iPod Touch. Not a 3G. The 3GS. iOS 4.0 has resulted in slow, slow performance. 30+ seconds to load some apps. Safari renders pages wrong (mostly text submission forms), and the SMS app will cause text to jump around and jitter if I have more than 3 lines of text in my outgoing message.

I've restored the phone several times. Twice restore+restore backup, and once restore + "new phone" to make sure everything was "factory fresh". Same result.

iOS 4.0 is a disgusting, buggy mess of crap.


How odd. I'm another 3GS owner and haven't seen any of this. I've noticed a slightly increased battery drain. No slowdowns, no weird rendering in Safari, and I certainly don't have a trouble messaging. I'm sorry for you though.

Xenomorph said,
I have a 3GS. Not an iPod Touch. Not a 3G. The 3GS. iOS 4.0 has resulted in slow, slow performance. 30+ seconds to load some apps. Safari renders pages wrong (mostly text submission forms), and the SMS app will cause text to jump around and jitter if I have more than 3 lines of text in my outgoing message.

I've restored the phone several times. Twice restore+restore backup, and once restore + "new phone" to make sure everything was "factory fresh". Same result.

iOS 4.0 is a disgusting, buggy mess of crap.


Same here. iOS4 is draining battery on my 3GS much faster than iOS3.

XerXis said,

for what exactly? or were you being sarcastic

Another way to say congatulations.
And of course I'm being sarcastic about Apple.

yea my second gen ipod touch needs to be recharged a lot more often now... but might just be the battery meter, it seem even less reliable now jumping up and down

though the drainage isnt as bad now as it was when i first updated, kinda strange

just think, if iOS 4 drains older devices battery like this, think of how good the iPhone 4s battery will be when it's solved

Leonick said,
yea my second gen ipod touch needs to be recharged a lot more often now... but might just be the battery meter, it seem even less reliable now jumping up and down

though the drainage isnt as bad now as it was when i first updated, kinda strange

just think, if iOS 4 drains older devices battery like this, think of how good the iPhone 4s battery will be when it's solved

I have a second gen ipod touch too and I have noticed it as well...good to know its not just me

Leonick said,
yea my second gen ipod touch needs to be recharged a lot more often now... but might just be the battery meter, it seem even less reliable now jumping up and down

though the drainage isnt as bad now as it was when i first updated, kinda strange

just think, if iOS 4 drains older devices battery like this, think of how good the iPhone 4s battery will be when it's solved

Before I bought my iPhone 4, I had upgraded my 3G to iOS4. I was using the developer builds and I had noticed that the battery indicator was very unreliable. I would leave my phone on the charger all night and it wouldn't show that it had charged any. But I would do a hard reset and then the battery indicator would be fine. But I still have that same issue on my 3G using the GM build of iOS4. My iPhone 4 seems fine. So I don't know if there are two different issues going on. I would assume that if it were just a battery indicator issue then a thread on Apple's support forums wouldn't be so long.

bdsams said,

I have a second gen ipod touch too and I have noticed it as well...good to know its not just me

I too have an iPod Touch 2g and I now have to recharge it daily when the battery used to last around 3 days before it needed recharging again.

I'm glad it's not just me facing this issue, in fact I was in the middle of doing a support request to Apple.

Leonick said,
yea my second gen ipod touch needs to be recharged a lot more often now... but might just be the battery meter, it seem even less reliable now jumping up and down

though the drainage isnt as bad now as it was when i first updated, kinda strange

just think, if iOS 4 drains older devices battery like this, think of how good the iPhone 4s battery will be when it's solved

agreed... its way too noticeable on my iPod Touch 2G

DreadBoat89 said,

agreed... its way too noticeable on my iPod Touch 2G


Yeah, actually relieve to read that everyone its in the same page of the problem, I used to be able to go at least 3 days before recharging and now I barely make it through the day, the sad part is that I wasn't so excited for the multitasking but I was for the folders, spelling check, mail and wallpapers....but when you think about it its kind of logic in many ways its a bigger and more complex OS, its designed for the cpu's of the new ipods and iphones, and it kind of make you want to upgrade, sooo contrary to popular belief, Apple just like others its in for the profit, not the good deeds.

asdavis10 said,

Before I bought my iPhone 4, I had upgraded my 3G to iOS4. I was using the developer builds and I had noticed that the battery indicator was very unreliable. I would leave my phone on the charger all night and it wouldn't show that it had charged any. But I would do a hard reset and then the battery indicator would be fine. But I still have that same issue on my 3G using the GM build of iOS4. My iPhone 4 seems fine. So I don't know if there are two different issues going on. I would assume that if it were just a battery indicator issue then a thread on Apple's support forums wouldn't be so long.

This bug existed in previous versions of iOS as well. It isn't new, although perhaps something triggered it on your devices.