Hi: Unfortunately, I haven't been able to do any kind of testing with the Book Port 2, as it is not that far along yet. Therefore, we don't know what the Battery Life will be. The unit will be too thin to accommodate regular AA batteries, so you will have to use the Battery Pack. Keep in mind, however, that you will be able to power the unit with an AC adaptor, plus, you will be able to power it through USB connection to a PC. I don't know anything more than that for now. Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> mt281820@xxxxxxxxxxx 07/14/07 08:07AM >>> What's the difference between the amount of time for battery life on the current vs. new bookports? I like the long battery life for what I have now which is why I'm thinking of getting another current bookport since I like using the double A's. Will there be a way we can also use double A's in the new one like we could with the handicassettes?