Travel Tech: 4 Gadgets for Running Your Business on the Fly Productivity tools for outside the office.

Photo courtesy of Goal Zero

Power suite
With two USB ports, a 12-volt plug and a proprietary laptop port, the Goal Zero Sherpa 100 Power Pack ($350) can keep your office running even from a job site in the middle of nowhere. The 98-watt-hour device filled a MacBook Air's battery one and a half times on a single charge. The Sherpa charges via standard wall outlet, car charger or--for those times when you're completely off the grid--a Goal Zero solar panel, sold separately.