Truth be told, I've never found myself in a situation where I've needed to recharge my laptop or cell phone in a hurry while miles away from the nearest electrical outlet. But I live a rich fantasy life in which this is always about to happen. Why tempt fate when I can have this power backpack from APC with its built-in charger? The pack is designed for easy access to all your mobile devices, and can be plugged into AC outlets, airline power receptacles, and car cigarette lighters.