There's a good reason why you don't want to base a business around unsupported solutions to other companies' problems: those companies can break compatibility at any given moment. And unfortunately, Reserve Strap is discovering this first-hand. The company has stopped shipping its namesake Apple Watch battery band to most customers after learning that WatchOS 2.0.1 and later breaks the strap's charging functionality... you know, its reason for being. Reportedly, Apple doesn't want anyone using the Watch's hidden port (tucked just inside one of the band slots) until there's an MFi accessory program in place.