A beverage insulating jacket comprising a top insulating receptacle having a bore dimensioned to receive a beverage container or can. An acceleration sensor is formed by the head supporting member and the piezoelectric element so as to be incorporated into the mechanism. A water spray nozzle ejects liquid water onto the surface of the cathode and the sprayed water takes heat from the air around the cathode as latent heat of evaporation, which is effective to prevent dehydration of the electrolyte membrane, as well as to cool the cathode which would otherwise become overheated when the fuel cell operates continuously over a long period of time. At least one electronic component is mounted within the anchor and the at least one retention member secures the component to the substrate.