A system and method for using statistical analysis of information obtained during a rechargeable battery charging session, wherein the method is for optimizing one or more parameters that are used for controlling the charging of a rechargeable battery during the charging session. The gas analyzing apparatus connected to a sensor electronics and which sensor electronics is also common for flow measuring device for measuring respiratory gas flow and pressure measuring device for measuring respiratory airway pressure when connected to said sensor electronics. In the event an information identifier is detected, the receiver is supplied with power for the duration of the identifier and the information is recorded. Upon detection of a mobile VPN service request, the gateway node returns IP address information of the gateway node to the mobile terminal via a subscriber node. With the use of four LED’s and a circuit to indicate each phase with power off and a one time test all phase orientation is completed in a one step process.