Apple Continuing to Investigate iOS 5 Battery Issues
Yesterday, Apple released iOS 5.0.1, the first update to the company's latest iOS 5.0 mobile operating system and one designed in large part to address complaints of battery life issues. But even with the update, a number of users are still reporting significant issues with battery life on their iOS devices.

Apple has now provided a statement to AllThingsD indicating that it is continuing to investigate the battery life complaints in an attempt to determine what is causing the problems.
The recent iOS software update addressed many of the battery issues that some customers experienced on their iOS 5 devices,” the company said in a statement. “We continue to investigate a few remaining issues.”
Apple has not committed yet to a near-term iOS update to address any additional issues, but is presumably already working on a follow-up update incorporating fixes for any other problems it discovers.
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Top Rated Comments
I was thinking that myself. It's nice to know even a little information and at least you know they're working on it rather than being silent.
That's not what you're supposed to get at all.
I'm quite liking the SJ post era - not to say the SJ rein was bad, because it wasn't, it was good, of course. But, SJ would have just said "There's no battery issue".. and Apple would have been digging itself out of a hole by now.
In short: Apple communication has improved.
Depends: What services do you have running? i.e., location service will kill your battery. What is your cell reception like?
Talk time - 8 hours on 3G
Loss per hour: 12.5%
Loss in 30 minutes: 6%
Loss per minute: 0.2%
Standby time - 200 hours
Loss per hour: 0.5%
Internet use - up to 6 hours on 3G
Loss per hour: 17%
Loss in 30 minutes: 8%
Loss per minute: 0.3%
Internet use - up to 9 hours on WiFi
Loss per hour: 11%
Loss in 30 minutes: 5%
Loss per minute: 0.2%
Video playback - up to 10 hours
Loss per hour: 10%
Loss in 30 minutes: 5%
Loss per minute: 0.2%
Audio playback - up to 40 hours
Loss per hour: 2.5%
Loss in 30 minutes: 1.2%
Loss per minute: 0.04%
(numbers rounded)
Let me followup with the standby time number......I for example on my iPhone 4 on 5.0.1 charged to 100% last night before bed. Woke up this morning still at 100%. So standby should generally be a slow drain, depending of course on what you have running.
-Kevin
10% is wayyy to high to be losing on standby, unless he is in a poor signal area. I have 4~5 bars on Sprint, and my 4S has NEVER lost more than 5% while I sleep (6~8hrs).