The larger Peak and Summit batteries both support full-speed, 2.1-Amp iPad charging, while the smaller two units are better suited for iPhones and iPods because of their slower 1-Amp charge speeds; designed as a family, the packs increase in power capacity as their sizes and prices go up. Beyond support for Apple’s current devices, Peak and Summit both sport Micro-USB cables for charging additional accessories; Trek goes even further, as it…
