A rechargeable battery includes a body including an electrolyte, the body configured to be charged and discharged; a protrusion protruding from the body and having a polarity corresponding to a positive electrode or a negative electrode; a depression recessed toward an inside of the body and having an opposite polarity to the polarity of the protrusion; and a resiliently deformable support disposed in either one or both of the inside of the depression and the outside of the protrusion.