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Initiate DFU mode on your phone and restore the phone. Be sure to set up as "new phone" when you sync your data back unto the phone. Prior to the growing numbers of users experiencing lack luster standby or usage reports, I was sure that I had a physical issue with my 3G. Since the process that i have described above I now have much better battery life. Please reply back either way if your finding differ than mine.

Problems that require the setup as new phone solution are extremely frustrating. Every time I have to do this, it shatters my illusion that I can rely on my iPhone. Most things sync, but many do not. Most apps and games lose all their data, and I have never seen a solution for that. SMS, call history, so much goes out the window.

Every time I do this, it is weeks before I'm back to a seamless experience again. There's always "one more thing" I run into - one more missing password, one more setting.
 
this gives me a lot of

confidence that apple is doing this, NOT! They have been really bad as far as servicer goes on this, releasing updates without throughly testing them. My battery life sucks to, but is it worse than it always was, who the hell knows. I think it is. I always use one of those mophie battery paks anyway just in case, cant trust this thing to hold a charge for a full day of work.

I just discovered on saturday that my visual voice mail was not working again, it was non functioning over the course of a months time in July, and they finally fixed it, and then people started saying, you didn't get my message?

No, thinking they probably never really called. Then it happened so many times I manually checked it and lo and behold there were like 44 messages in the system that I had not heard!

I almost went and got a blackberry at that point.

This iphone is one of the most over rated products around.
throw in the wonderful ATT network of dropped calls and bad signals in New York City of all places and I am really a step away from dumping it in th Hudson, no that anyone cares!
 
In my case the culprit was 3G. I've now switched 3G off on my 3GS and run it all day on edge. I'm now getting 2 1/2 to 3 days of battery use with about 1 to 2 hours of phone usage. In only switch 3G when I'm actively safari and I'm away from any wifi. I also turn off bluetooth when I'm not using as well as wifi.

With 3G and doing the same things as I list above, I was getting about 1 1/2 days worth of usage. Right now with 40 minutes of usage and 22 hours and 40 minutes of standby, my meter is at 85%. I'm on 3.0.1. I usually wait a month before I upgrade to latest to see if there are any issues, and based on reports, there are some issues. So I'll stick with 3.0.1 until more people report on their experiences.
 
If anyone finds out about a fix or update please post it. I would love to have my full battery life back. Everything was great with my battery before 3.1
 
Wirelessly posted (iPhone: Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_1 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7C144 Safari/528.16)

I haven't really seen a dramatic decrease in battery life but I also haven't paid a whole lot of attention to it either. It will be interesting to see what apple comes up with on this one.
 
Would it be wrong to say that 3.1 was the worst iPhone software update EVER?

Stops tethering, messes with standby mode, screwing with battery life ... all for genius mixes? LOL, no thanks.
 
I thought I was the only one.

My wife has the 3GS, and I have the regular 3G phone. While she has had no problems with her phone, my battery problems started since I upgraded to 3.1. It didn't occur to me that the 3.1 update was the problem. I just thought my phone was going bonkers.

Here is what happens: with full power, it shuts down randomly. Then I have to do the two-button start thing to get it running. Then the black screen with the apple symbol comes on. Then it takes about 3 or 4 minutes to boot. Then the battery is dead. Then I plug it in to recharge it. Then within a few moments, it shows, like, half the battery power is restored.

This is happening 4 or 5 times a day. It's absurd.:mad:

EDIT: My wife and I haven't jailbroken or enabled our phones for tethering.
 
I guess I'm just lucky. I saw my battery life go from 4 1/2 hours > 6 hours. I feel like I can use my phone all day now :). When I went to 3.1, I set my phone "as new", there might be issues when people upgrade, who knows.
 
WHEN IS BATTERY TECHNOLOGY GOING TO ADVANCE!
Had to laugh when I saw this :)

Battery technology has advanced, amazingly so, in the last decade(s). They are working up against the limits of the chemical reaction/physics of the compounds available today. It isn't easy to get more out of these systems and keep them safe/stable for devices that get hammered on such as an iPhone.

New technology is always being worked on (large investment by many companies in this area) but the next leaps will take a little time for costs, safety, and robustness to be worked out. Then I would expend a run for a few users pushing these technologies to their limits, etc.
 
My wife has the 3GS, and I have the regular 3G phone. While she has had no problems with her phone, my battery problems started since I upgraded to 3.1. It didn't occur to me that the 3.1 update was the problem. I just thought my phone was going bonkers.

Here is what happens: with full power, it shuts down randomly. Then I have to do the two-button start thing to get it running. Then the black screen with the apple symbol comes on. Then it takes about 3 or 4 minutes to boot. Then the battery is dead. Then I plug it in to recharge it. Then within a few moments, it shows, like, half the battery power is restored.

This is happening 4 or 5 times a day. It's absurd.:mad:

EDIT: My wife and I haven't jailbroken or enabled our phones for tethering.


The battery issue you describe sounds like a dead cell in the battery more than a software glitch. A friend with a 3G had a similar issue with 6 minute boot times. He restored his phone through DFU mode and it resolved the issue. Phone boots now in about 40 seconds.

He had a tethering profile installed when he upgraded which led us to believe it was the culprit. I removed the tethering profile before upgrading my wife's 3GS and haven't seen a problem with the phone at all.
 
I guess I'm just lucky. I saw my battery life go from 4 1/2 hours > 6 hours. I feel like I can use my phone all day now :). When I went to 3.1, I set my phone "as new", there might be issues when people upgrade, who knows.

I hope you're not talking standby time... Like everyone else is saying, I'd like to see my iPod Touch last all day with heavy usage, (which, I'll admit, does see heavy usage during my carpool thanks to #%!@ addictive TapTap) but I guess compared to what I'm hearing from all you, I'm actually doing pretty good on battery time. I usually don't make it through a day...used to, though - with the same amount of usage...
 
Here's something Weird. I was having the same battery problems with 3.1. Battery was dead before the end of the day. 0 min of talk time and very little other usage during the day. Then, two or three days ago, it just went back to normal. Phone worked all day, with moderate usage, and still had 60% battery when I went to bed. I didn't do anything different. What's up with that? Still on 3.1 BTW.
 
I just don't think battery tech is up to par with today's devices. Smartphones are energy hogs and right now, they just don't have the battery life we need.
 
The weird thing is since I installed 3.1 I would say my battery life has improved. I'm happy though apple is looking into improving it.

With all the stuff this device does I alwsays would like it to have more life. After push came out I have never been impressed with the battery life.
 
I have noticed a slight decrease in battery life also.
I also noticed immediately after loading 3.1 that the screen brightness was dimmer. I used to keep my brightness at about 20%, and now I have to turn it up to about 35% for the same amount of brightness. I'm not sure why Apple did that, but they did. Perhaps the two are related; people have their screens brighter and their batteries are suffering as a result.
 
Yet another reason I never update anything.

At least with this Apple seems to be trying to figure it out. I wish non-iphone/iPod products got this much attention from Apple.
 
How about ALL 3Gs???

I can't go one day without recharging mine - ever since taking it out of the box (3.0)! Can someone tell me if this is normal or is my battery faulty?

- wifi and bluetooth are off
- mail only connects when I tell it to
- no push notifications

So what else can I do? I don't want to keep the 3G off, nor should I have to. I guess I wont be updating to 3.1.

Any recommendations?
 
I had this exact problem on my iPhone 3GS using vanilla iPhone 3.0. My battery life would fluctuate throughout the day, dying down to 20% in a matter of a few hours, then jumping up to 80%, then dying within 30 minutes. I brought it to the Apple Store, but the Genius looked at me like I was crazy. He said it was because I had Push Notifications on. Didn't appreciate being talked down to like that.

Anyway, the matter sorted itself out after a couple weeks. It seemed like a few rounds of battery conditioning was all my phone needed. Now my phone rarely goes below 50%, and I just charge it when I go to sleep.
 
Try restoring your iPhone from iTunes. But back everything up first.

Worked for me. Called Apple and a rep advised me to try it.
 
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