Peripheral manufacturers simply aren't learning. We mocked Mad Catz's Power Pak for making the PSP's battery stick out as much as J-Lo's rear. It seems like the "Powerbank" tries to one-up Mad Catz by making an even larger battery solution. Although it'll give you more than twice the battery power, it's not worth it when it makes the system larger than a Game Gear. Honestly, wouldn't it be easier just to buy a spare PSP battery?
[Via PSP GadgetZ]