"Apple has issued iOS 6.1.2 to address a battery drain bug, introduced in iOS 
6.1, caused by excessive network communication with Microsoft’s Exchange 
Server. The problem occurred when syncing an Exchange mailbox on a device 
running iOS 6.1, producing an out-of-control polling of calendars and mailboxes 
on the Exchange server that resulted in ramped-up CPU usage and subsequent 
battery drain. 
The bug was identified by both Apple and Microsoft, the latter of whom issued 
several workaround strategies for Exchange administrators until it could be 
fixed.

The free updates are available through iTunes as a full download (989.5 MB for 
the iPhone version and 1.08 GB for the iPad version), though you can 
drastically save on the download size by updating via the over-the-air option 
on your device (go to Settings > General > Software Update). The over-the-air 
delta for the iPhone is 12.8 MB and just 12.5 MB for the iPad update. The 
update is free, and it can be applied to the iPhone 3GS and later, iPad 2 and 
later, and fourth-generation iPod touch and later."

Cheers,
Ronni
Sent from Ronni's iPad4
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