IOS 5.01 update draining battery on iPhone 4

I have an iPhone 4 and ran the update to iOS 5 on Saturday. I regret doing this now. Before the update I had great battery life. But since Saturday my battery needs to be charged multiple times in a day through normal use. In 1.5 hours of unplugging my iPhone from the charger, my battery drained to 88%. In the last 10 minutes it took to log in & post a couple comments, my battery has now drained to 83%! In 10 minutes!! That is an embarrassment guys. Please fix this ASAP!

I had both the synching "waiting to copy problem" and ios 5.01 battery problem. Eg: phone was at 100% at 11pm by morning it was stone dead. Both issues are resoluved now.
1: "Wainting to sync" issues was resolved by upgrading iTunes to 5.01 (windows 7 64 bit)
2: Battery problem was resolved by backing up my phone and finally seeing it complete fully. Then resetting the phone to factory and restoring the phone from backup
In the middle of the restore I had a time out error, I unplugged the phone, restarted itunes, started the restore again and now everything seems fine.
The phone has been at 100% for over an hour now.
I hope this helps.

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My battery has gone down by 5% within just 10 minutes of my phone sitting there, having absolutely nothing done to it.
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Does the article below help?
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Hi
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mine lasts a lot.
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