iPhone Update 2.2 Drastically Reduces Battery Life

I have had the same problem since the update. I have turned off 3g, lowered my brightness and made sure location services are off. I have done a hard and soft reset and am really frustrated. I'm going to have to go in for a replacement, because over Thanksgiving is one thing, now that I'm back at work, I NEED MY PHONE TO WORK!

Here is your the fix like I said before on my last post

We’ve published a number of potential battery-life boosters, including:

Drain the battery completely Use your iPhone until the battery dies completely (indicated by a battery icon appearing on the screen when the sleep/wake button is pressed), then fully recharge the device. It appears that the full discharge may reset circuitry that prevents a full charge from occurring, despite iconic indication of a full charge.

Turn off location services It appears that the Maps application and some third-party applications that use GPS functionality fail to power down the necessary hardware components when they are no longer in use. Navigate to Settings > General > Location Services and turn these services off when you are not using Maps or another location-enabled app.

Turn off Push then restart The iPhone 3G’s Push functionality for Exchange and MobileMe accounts can destroy battery life. Turn this option off in “Settings” then restart your iPhone by powering it off then on.

Restore the iPhone with original settings Launch iTunes and select the second option in the “Version” section on the Summary page for your iPhone. This restore process will erase your iPhone software and data, including all settings, which can be restored later via iTunes.

same here. was able to partially charge when battery drained, and this only after I reset. Now, no response after update. No ability to synch either. This only happened after 2.2 update.

I have a black 3G purchased from ATT in New York City July '08, model no. 818359gcy7k.

Hey mac beep beep

You forgot the last suggestion

Open drawer take out old palm treo, and go to Verizon with a really sheepish look on your face.

Don't you realize that making all the changes you suggest negates the entire point of purchasing the 3G to begin with?

Mac care told me to exchange my phone. The thought of this going into a landfill is beyond painful. My husband was going to get one and I will advise him not to.

Whats incredibly amazing is how we are supposed to turn off more and more features after updates! I'm tired of turning off one function for something else to work. Come out with a patch that fixes bugs so we all can enjoy our product!

I mean basically turning off features is not a bug fix, because when I need them features the battery drains at an alarming rate. In no way shape or form is that the average user wants from their phone.

Maybe its just my phone but it seems as though some type of process monitor is needed or a kill process application.

Message was edited by: Bass_Guitar

Message was edited by: Bass_Guitar

The 2.2 update has fixed all my problems with dropped class and my iPhone 3G feels much faster but I have the battery problem.

In my case I solved it by disabling push in my mobile.me account and enable checking every 15 minutes.

I'm waiting eagerly for a fix for this problem,

For all you guys having problems with decreased battery life after the 2.2 update, there is an article posted over at iphonehacks.com that addresses most of the key issues that they consider to be causing this. It looks like they've done their homework and it's a really good article that I think could help a lot of people out. I'd suggest having a read. One of the key points they bring up is the 2.2 update locking certain mail accounts into constantly trying to retrieve new emails and that it can be solved by removing the account and setting it back up. There are also other suggestions, that's just one. They claim to have a pretty good success rate.
I hope it helps

First generation iPhone here...battery has been draining quickly for two weeks. I need a phone that works. C'mon Apple, respond to your customers.

I followed the suggestions from Mac Beep Beep, and my battery life has improved greatly. I can pretty much go all day with a full charge, and I use the phone heavily. I have wifi turned off unless I know there is a wifi network available, and I have email set to fetch manually. As I came from a Blackberry, this was a bit of an adjustment for me, but I find it quite liberating now that I'm not constantly wondering "what email I just got that would be rude to check while I'm at dinner, in a meeting, having sex, etc." I guess I've rehabbed from my Crackberry addiction.

I also keep location services turned off unless I need them for a specific app, as logically it seems to me that requires the iPhone to continually correspond with the network, which would wear down the battery. I've also noticed that the using my Jawbone bluetooth drains the battery quickly as well. This is a problem for me, as I use it a lot when I'm driving. My Blackberry didn't drain so quickly.

Other than that, my battery life is good. I think anything that causes the phone to continually have to search for a connection (Blackberry, Location Services, etc.) is going to reduce battery life substantially, as it would any phone.

I doubt all the experts actually test their solutions. If they do, then the problem is not in software, but in certain models of phone as has been suggested here. Here is what I have done.

1. 2.0 software had horrible battery life.
2. 2.1 update had completely acceptable battery life. I had everything that I paid for in my phone turned on including 3G, push mail, and wireless. I would frequently go to sleep with half a charge and be woken up by the phone's alarm and only slightly drained battery the next morning.
2. 2.2 is the worst of all. The phone rarely lasts through the night.

Here are some things I've already done and tried:

2.1 deleted programs to only a bare bones (one of them may still be the offending program however).
2.2 turned off the telephone (both 3G an EDGE as I live in a poor coverage area)
2.3 that definitely drained the battery all the way down, as the darn thing doesn't wake me up in time for work! This has happened several times, and the last full charge is usually at around 5:30 in the afternoon as it charges all day at my desk. Good thing, it would never last through a day though and certainly not with any actual phone time.

This level of performance is so unacceptable I will be taking this to the Apple Store and demanding some help today.