The Snap-n-Charge is small as power banks go, and only 3,200 mAh/16 Wh. This is good enough for a quick top-up of a smartphone or headphones. And a top-up is what you get -- the capacity is enough for ...

The battery inside the tablet is an 8,400mAh unit, which is comparable with the current iPad lineup, and good for about six hours of sustained runtime, which translates into "all-day" of regular use.