One AAA battery will hold you over for quite a while; using Nintendo’s monstrous 3DS peripheral. The Circle Pad Pro promises 480 hours of battery life with one AAA battery. The news comes directly from the device’s manual as the peripheral and Monster Hunter 3 (Tri) G were made available to a select few in Japan before the official release on December 10. The Circle Pad Pro will be released in Europe coinciding with the release of Resident Evil: Revelations on January 27, 2012. Currently, there is no specific information for a North American release of the peripheral. Aside from the enormous size, a least you can’t complain about always having to buy a battery for this peripheral.