Incipio offGRID battery case for the iPhone 4S (review) - ZDNet (blog)
Incipio offGRID battery case for the iPhone 4S (review) ZDNet (blog) By James Kendrick | March 19, 2012, 12:22pm PDT Summary: The Incipio offGRID battery case adds hours of operation to the iPhone 4/4S and charges the phone battery at the same time. It adds very little bulk to the slim iPhone in the process. |