Though the very idea of an 8200mAh battery pack would have seemed like total overkill only a year ago, the release and subsequent popularity of the iPad -- complete with its similarly large internal battery and special charging requirements -- has led to a handful of new accessories designed to feed its hunger for power. PhoneSuit's new Primo Power Core ($100) is a mirror-faced, black glossy plastic-backed power pack with 2.1-Amp maximum output capacity…
