The gadget: The Powergorilla, an 8.5 x 5 thin brick of a battery that charges laptops, phones, and many other portable devices on the go. You can adjust voltage options between 16, 19 or 24v, and the on-board LCD screen will show you your selection and how much juice is left in the unit. The battery gives you about two to five extra hours for your laptop, and about 20ish on smaller gadgets like phones.
