By George Kokoris ·
November 7, 2012
When you need a portable power source, you need convenience, not worries. Unfortunately, worries are what come with most of the available choices. Some require a power cord that might present a tripping hazard. Gasoline generators are noisy and unwieldy, emit fumes, and can only be used outdoors. Many battery packs are too weak and/or don’t last long enough between charging.