Battery drain since upgrading to 2.2

Yes, twice since upgrading to 2.2, once my phone showed 75%+ and then after about 7 hours of sleep I got up and the phone was dead and telling me to plug it in! Then today it had plenty of battery and I let it sit for about 3 hours and it is now showing to plug it in, it is completely dead! This never happened before 2.2. There is 100% a problem with 2.2.

I am only using active sync. I have fetch set to manual.

So then turn active sync off.

Its been reported many times in the past that if your active sync gets messed up some how it will keep the radio on all night trying and trying.

Try setting all accounts to Manual and turn Fetch New Data OFF. (Just as a test).
Watch the battery for a while. If usage numbers are down and battery is better,
then delete the active sync account and set it all up again.

Yeah, I upgraded my iphone on Friday to 2.2 and ever since, it has been getting hot and using all of its battery power quickly. I am pushing my exchange mail to my phone and suspect that is the issue. Apple definitely needs to fix this. I am going to revert back to 2.1 and see if it works. I didn't have any problems with it on 2.1.

Same thing here folks...
Since 2.2...

Battery warm to near hot... No fetching or pushing...
One pop email account..
My phone as well as my wife's both doing exact thing...
For example, use to be able to play Scrabble between the 2 of us for hours... It drained down super fast. Not this time... got a red line in the time it use to only go down to half battey from a full charge.

*+"This is not good Apple... Don't destroy our batteries and have us send all our phones in for repairs and battery replacements at our expenses!"+*
>:-

Hi everyone:

I'm experiencing the same issue here. I have MobileMe and Exchange with push. With 2.1 the battery lasts at least the whole day, today the iPhone was disconnected from the wall 2 hours ago and my battery is 50%...

I'm developer and I'm trying to figure out what is the problem. I noticed that the iPhone gets hot when I'm using Safari. After using it is still hot but if I open Safari and REALLY close it (I mean, keep the home button pressed until Safari quits) in a few minutes the iPhone is colder.

So, I think that there is a problem with Safari that it keep eating battery in the background. Please if all of you can test this behaviour maybe we can get closer to the issue...

Greetings,
Antonio

same issue here: 4 hours standby and the battery is drained to 20% since update to 2.2. what a mess!
@apple: please fix it!!!
the iphone 3g is now almost unusable!

Message was edited by: jkatolla

Hmmm, with 2.2 I've found my battery life is extended. I used to charge my phone every 2-3 days on average. Now it goes 4-5 (estimated based on last 3 days) days before I need to charge it. Definitely improved from what I was getting with 2.1.

My battery life is draining much faster since upgrading to 2.2. I am not doing anything different than how I was using my Iphone before. My Iphone is almost useless with the new update. Please Apple fix this!!!

Yeah, it seems my battery life is better as well after the 2.2 update. I've seen that reported other places as well. FWIW, I have Push turned off and Fetch set to manual. I also keep 3G and WiFi turned off unless needed. I usually charge every night but I could probably go several days without charging under normal use.

I am concluding, that 2.2 update is leaving threads running. Judgine by machines be "warm" and battery drain over night, that's a good conclusion.

I am seeing Safari and Email (Exchange), stay in "loading" animation icon frequently.

What Apple need to release is a "Task Manager" so we can see what's running. I think they are running into multi-tasking issues...... (any only they can multi-task !!).

2.1 - I never had these issues and had them now all weekend, even after reboots.

Antonio,

I think you might be on to something. I did the samething and my Iphone is much cooler. I am going to see how long my battery lasts. I also deleted my fetch gmail account but left my work exchange account (push) on.

Thanks
Sajjad

Other people posting on this thread:

Olease Read Antonio's post above and then open Safari and then holding the home button in till Safari exits (don't just single push the home button, hold it down).

See if this solves the battery problem.

Also be aware that if you sleep your phone (top button) with Safari in the foreground it does not shut safari down and if you are sitting on a page that refreshes, it will use battery.

If forcing shutdown does fix it then that might be what is needed till Apple fixes this bug.

Everybody try this.

I'm on board with trying Antonio's suggestion. Will report back in a few days.

I can now confirm that after shutting down safari I was able to go to my pre 2.2 update battery usage.

Here are other threads and links to the same problem:
http://discussions.apple.com/thread.jspa?threadID=1801056&tstart=15
http://forums.whirlpool.net.au/forum-replies-archive.cfm/1093046.html

I will check this thread but write in the other one. May be an apple moderator could merge them if this is possible?

Thanks