Do your loved ones adore camping out? Are they fans of hitting the road to wherever, or flying off on a whim? Do they favor playing on the beach with kids, or discovering that hot new, albeit, dimly lit restaurant in the City?
Only a few years ago, the ability to get a single charge from a device to keep your cell phone going was a major achievement. Now, especially with the explosion of tablets and eReaders, that's very old news already.