Horrible Bluetooth Keyboard Battery Life - Since Magic Mouse?

Question

I'm having a weird issue that is driving me nuts. I've noticed that over the past couple weeks I've had to replace the batteries in my Apple bluetooth keyboard several times because it is draining at a rate of about 18-20% a day, even when I'm not at home using it or using it much at all. I have the first version of the mini keyboard, the one that takes three batteries. I used to get great battery life and only had to replace them maybe once every few months so something is definitely wrong. The only thing that I can think of that has changed is that I went from the bluetooth Mighty Mouse to the Magic Mouse. As a result I had to install the update that came out to support it and then shortly after, 10.6.2.
I have tried all the typical stuff like removing both the keyboard and mouse from Bluetooth setup, doing fresh pairings, etc. Nothing has helped. At this point I've deleted the Magic Mouse and gone back to the Mighty Mouse to see if that makes a difference, but I already hate it and greatly prefer the Magic Mouse. I'm hoping that someone here has seen or had this issue before and can point me in another direction that helps.
Thanks!

Answer 1

Cross posting:
Perhaps inquire directly of Apple Care. Gizmodo's review (http://gizmodo.com/5386202/apple-magic-mouse-review ) relays a claim about the Magic Mouse battery life saying, "it's powered by two AA batteries, which get up to four months of use per charge, according to Apple."
Engadget's preview (link follows) included the same reference, the related headline read, "Apple's Magic Mouse: one button, multitouch gestures, Bluetooth, four-month battery life."
http://www.engadget.com/2009/10/20/apples-magic-mouse-multitouch-gestures-blueto oth-four-month/
Finding support for Gizmodo's reference ("according to Apple") and Engadget's headline may be a little more difficult. Perhaps I haven't read the press release carefully enough. Clip below, from that Apple press release:
"Apple Introduces Magic Mouse," press release, 20 Oct 2009, Apple.com (http://www.apple.com/pr/library/2009/10/20magicmouse.html : accessed 24 Nov 2009), in part, "Magic Mouse uses Bluetooth wireless capabilities to create a clean, cable-free desk top and its secure wireless connection works from up to 10 meters away. To extend battery performance, Magic Mouse includes an advanced power management system that works with Mac OS® X to automatically switch to low power modes during periods of inactivity. The wireless Magic Mouse is powered by two AA batteries which are included."
Hope this helps.