Living up to its name, Power Slice is tapered along its edges, coming down to a rounded point on both long sides. It’s coated in a slightly raised crisscross pattern, making it feel soft and smooth. The seven holes on the left edge are made to work with most common ring systems, and the shape of the battery itself lends itself to being tucked away for travel. As most battery packs do, this one has a handful of inputs and outputs, all along one…
