Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I did a clean restore of 4.3 on my 3GS and for the first time since I bought the iPhone it died within a day.

Typical day would leave me at 40% checking into Foursquare, about an hour of Edge calls. I did have 3G turned on when I noticed very fast draining.

PUSH set to Manual
Notifications OFF
Bluetooth OFF
 
Guys, I know what is causing your battery issues. It is the new Ping curse that Apple integrated deep into iOS 4.3 and is turned on by default. It uses push notifications so it is always running and using data. To disable it, go to:

Settings->General->Restrictions->Ping and kill the beast.

I did NOT see that they snuck that in... I don't even subscribe to Ping.
 
Updated to ios4.3 on Thursday. Normally have 70% battery by night time. Now 43% with normal use. Something not right
 
I dont see any problem with it. I always set notification and location service on and brightness around 75%, with email pushed every 15 minutes. Its been 3 hours since my last full charge and still 100%. Im using my phone heavily and it will be around 5% in 1,5 days, mostly used for call, gps, browsing and whatsapp.

However when at home I always turn off 3G as Im using wifi instead.
 
Batter has dropped from 41% to 35% since last post. Have turned off ping. It is noticeably draining as I use my phone...ha ha just dropped to 34%. scary!!
 
I've got Ping still on (not restricted) AND I've been streaming TWiT since your last post and I've only used 3%.

Am at 32% now. Maybe it only effects some handsets, but there are no other changes I have made apart from the ios4.3 update. Will mOnitor it over the weekend but it's noticeably dropping .. 31% now
 
Can any of you test this?

Note your "usage" down before bed, then see if it goes up during standby when you wake up

Mine has been going up anywhere between 30 and 60 minutes over the course of the night...
 
This is interesting because it seemed to me (based on a one day sample) that I was getting BETTER battery performance. In fact, I was trying to kill the battery last night to do a drain cycle, and I was getting frustrated because it was taking so long.

I'm not sure what the difference could be. This iPhone I am using is pretty new, though (less than 2 months old). This was the first upgrade done on this particular unit. I'm not sure if age/previous upgrades/lots of app data are factors or what.
 
100 to 93 in six hours is not much. I wouldn't worry about it.

No, that's terrible.

People saying that is fine probably have awful batteries to begin with so don't notice these things.

My 3GS would hold 100 to 97-98 in 10 hours standby on 4.2.1.
 
...SNIP...In fact, I was trying to kill the battery last night to do a drain cycle...
These newer batteries don't benefit from drain cycles, conditioning etc. You can also plug in the charger anytime you want. No need to wait till it's drained.
 
This is interesting because it seemed to me (based on a one day sample) that I was getting BETTER battery performance. In fact, I was trying to kill the battery last night to do a drain cycle, and I was getting frustrated because it was taking so long.
Download Battleheart (great RPG), if you haven't already, and play that. It sucks down battery life like crazy.
 
After noticing my battery was draining quicker decided to make note of what was happening overnight, so last night when i switched it to standby:

54% Battery
3hr Usage
15kb Mobile Data Sent
42kb Mobile Data Received


7hrs Later:

48% Battery
3hr 10min Usage
33kb Mobile Data Sent
69Kb Mobile Data Received.

I'm at home with wifi connected, so not sure why any mobile network data should be used and i dont know how my usage time increases when the phone is in standby.

Email set push - Off and to fetch manually.
 
Battery life is draining significant after this update. I usually go to work with 98%, and have about 60% when I get home. I work 12 hr shifts, and I use it on my breaks. I got here tonight at 7pm, and it's now 1:24am and I have 24%. I really don't want to restore it. There has to be a logical explanation.
 
No, that's terrible.

People saying that is fine probably have awful batteries to begin with so don't notice these things.

My 3GS would hold 100 to 97-98 in 10 hours standby on 4.2.1.

My iphone 4 sometimes drops 1% overnight, sometimes not.

I've never been happier with a phones battery life than this. Battery is still amazing, and i've had it since launch day.

I'm on 4.01, dont know what the later fw's are like.
 
Is there any way to downgrade back to 4.2.1? Ive had 4.3 on here for a week now and sick of it. I will very happily loose these new features in exchange for battery life.
 
My iphone 4 sometimes drops 1% overnight, sometimes not.

I've never been happier with a phones battery life than this. Battery is still amazing, and i've had it since launch day.

I'm on 4.01, dont know what the later fw's are like.
Same here. Never updated. Vanilla 4.0. I know how updates can affect battery life with my Nokia phone before.

I had a freak performance the other day.

First 45 min after a full charge, all switches off except WiFi. My auto-brightness was at 75% since I was at the mall next to the Apple Store and the sun reflected on me. Drained 10% in 45 min.

The weird part was it was stuck at 90% for the longest time. Maybe almost an hour. Then maybe 10 min of Edge and mostly using Notes and watching videos at a fairly dim level. 1% was like 7 minutes. Again, all switches off and airplane mode on. No music playing at all. I had exactly 7 hours usage at 47-48% and I had exactly 10 hours usage with 27% left! I had a total of 12 hours and 35 minutes of usage until it went dead. Standby was 1 day and 14 hours. Even took the pic. Broke my previous record by two hours! This was the third time I went at least 10 1/2 hours of usage with no music playing whatsoever and I had mine since launch. 12 1/2 hours of usage is crazy. Secretariat Belmont performance. My 5th gen iPod (30 GB) could barely get 12 hours music playing with the dimmest brightness settings and no shuffle. Even just watching vids on iPhone would give us about 9-10 hours. Amazing battery life and I am very conservative with it too. On airplane mode, 0-1% drain overnight. No airplane mode, and maybe 1-2%.

Now it is back to normal. Edge browsing will give me 8.5-9 hours and typical 5-6 min 1% drain. The absolute killers are 3G, push, and location services on. Brightness plays a part too. I've been very fortunate with iPhone 4's battery life so far and it still surprises me after almost 9 months.
 
My iphone 4 sometimes drops 1% overnight, sometimes not.

I've never been happier with a phones battery life than this. Battery is still amazing, and i've had it since launch day.

I'm on 4.01, dont know what the later fw's are like.

I was the same. I upgraded from 4.0.1 to 4.3. Worst decision to make.
 
You ABSOLUTELY NEED to upgrade to iOS 4.3 since it has a ton of security fixes, including arbitrary code execution ones for Safari where just visiting a webpage gets you infected.
 
OK,it seems to be back to normal :) thanks "SomeDudeAsking"

Ditto!

Mine seemed really bad yesterday, every morning I go through the same routine with the phone, and generally it won't move from 100% by the time leave for work. Yesterday I lost 3% by doing very little, only 10mins usage and even that was just checking the AppStore for updates (had none) checking mail then fb. This morning after turning ping off last night I've done the same things (even had 2 app updates to d/l), few couple notifications plus I've been sitting on here for 10mins and still have 100% with 24mins usage! So I'm happy again, lol

Cheers somedudeasking!
 
You ABSOLUTELY NEED to upgrade to iOS 4.3 since it has a ton of security fixes, including arbitrary code execution ones for Safari where just visiting a webpage gets you infected.


Ditto! Besides this is not a new issue:

https://forums.macrumors.com/threads/1060874/

Granted this was for the ipad but wondering if this is perception. Possibly. Most likely updates reset certain services that may have been turned off before or add new ones like ping and that's the cause of battery drain seen by some.
 
You ABSOLUTELY NEED to upgrade to iOS 4.3 since it has a ton of security fixes, including arbitrary code execution ones for Safari where just visiting a webpage gets you infected.
For me these problems sound so bad, and so genuine, that I'd rather make sure that I restrict my iPhone browsing for a while and hope that Apple come out with a 4.3.1 release that fixes this. On the basis of what I'm reading here, and the poll that I posted elsewhere in this forum (https://forums.macrumors.com/threads/1114005/), 4.3 is going nowhere near my iPhone 4 right now.

When Apple had the WiFi issues with the first iOS release for the iPad 1 they released a support (knowledge base) article to acknowledge the problem and give a few workarounds until they got the fix out (http://support.apple.com/kb/ts3304). This battery drain problem sounds as real as, and more widespread than, that WiFi issue. I hope that Apple say something soon.

- Julian
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.