As part of its PowerMat wireless charging system, Duracell has released the PowerSnap Kit for iPhone 5 ($100). The kit is actually composed of two products that are also sold separately: AccessCase, and SnapBattery. The former is a shell-style case that fits around the iPhone, and connects to its Lightning port, allowing for inductive wireless charging using a PowerMat -- another component that must be purchased separately. SnapBattery is a removable…