A battery pack includes nonaqueous electrolyte batteries each comprising a positive electrode and a negative electrode. The backing plate includes at least one opening to receive a module and at least one pocket. Also, each end zone defines an exposed cavity region with the end walls in a retracted position inwardly of the shock absorbing end zone of doubled material. Upon receiving a request from the user to access private content, the application sends a dynamic directive to a web module that can access a single sign-on server on behalf of the application, wherein the dynamic directive specifies that an authentication credential is required from the user. The compound is especially useful in the treatment of hyperphosphataemia. The apparatus acquires phase change and amplitude for a plurality of data points.