RP-PB14 has a volume that’s almost twice that of its iBattz competitor, despite only adding 2,600mAh. There’s no question that it’s huge, making portability an issue. As so many battery packs are, it’s rectangular with rounded corners. The body is solid. It’s mostly glossy black plastic, but a plate on top is designed to look like brushed metal. Centered along the left edge is where you’ll find one of the cooler…
