One of the more interesting features of Spyder’s PowerShadow Battery Case for iPhone 6/6s Plus is the company’s PowerShadow Dock ($50) companion accessory. While most battery cases will provide a micro USB port for charging your battery case and iPhone, Spyder has taken this a step farther by building a docking system into its battery case so that you can easily recharge your iPhone and battery case together just by dropping it into a…
