Modular iPhone 4/4S cases seem to be a trend at this year’s International CES, and Nuu’s ClickMate Power Plus is among them. Shipping in March for $70, the battery is part of the company’s ClickMate Series based around a standard Foundation Case—one of the shells is included with Power Plus. It has a 1600mAh capacity, which is right around the average for battery cases, and allow simultaneous charge and sync via the passthrough…
