the spring force constant of the push button switch must be less then the frictional force constant of the connector plug type if the force from the spring is greater than the frictional force of the connector the consequences are that the push button switch will inadvertently pull the charger connector tip out of the connector socket of the target device the connector examples given in fig3 a to 4c illustrate the use of a usb micro b plug 306 and a standard barrel connector 404 usb power and ground signals 312 and 314 respectively are however connected to dc voltage signals but it is important to note that this preferred embodiment is not exclusive to the usb micro b plug or barrel connector and can be applied to many different connector types it is also important to note that usb standard signals data negative dn data positive dp and identification signal id are ignored in this embodiment as they are unnecessary for the realization of the present invention flowchart of fig5 illustrates preferred operational steps to initiate a charge session 502 the charger 39 s prongs must be plugged into the wall receptacle 504 and the target device must be connected to the hybrid pushbutton.