A battery includes a battery body and at least one terminal protruding from an outside surface of the battery body. In one embodiment, a utility necklace has arrangements for receiving useful items accessible on the front of the necklace, and a pendant or weight on the rear of the necklace for counterbalancing the weight of the useful items on the front. Bipolar RF energy is then applied between the two electrodes, or the probes are cryogenically cooled, thus ablating the tissue therebetween. A combustion chamber attached beneath the steam generator can be initiated using biomass or natural gas to ensure superheated steam production in the event that the solar radiation is unavailable or insufficient. The cover is made from a material mainly containing an ionomer resin in which at least one kind of silicone powder selected from a silicone rubber powder, a silicon resin powder, and a composite powder thereof is dispersedly blended. A coated binder is divided into a plurality of coated binder units by applying a pair of dividing elements to the coated binder and applying a welding element.