Whether you?re an international executive or an ultra marathoner, this lightweight power solution is the perfect embodiment of minimalist mobility, offering nomads the ability to truly break the chains that bind them to their workstations. Compatible with Gomadic?s revolutionary TipExchange Technology that enables utility with hundreds of mobile devices, the Cavalry Pack is a necessary component to the toolbox of any truly prepared professional. In addition, this product, like all Gomadic products, is backed by a lifetime warranty.