The BEST Batteries I have Found....
For the second year in-a-row, I bought a package of 12 NiMH AA batteries at the Dayton Hamvention from a dealer in the flea market. The dozen only cost $20 and are rated at 2900 mah. The dozen I bought a year ago have been in daily use in my scanners and digital cameras (I do photography for a living).
The brand name is: Power2000 "Professional" (made in China) They are black, orange and yellow in color
I have seen them offered on the internet at a slightly higher price. Unfortunately, I did not get the dealer's name that had them in Dayton....BUT I can vouch for their superiority to everything else I have found.
By the way, they last for about 20 hours in my Pro-97 on a single charge and will last all day in a heavily used digital camera.