Secondary battery

A secondary battery, including a cylindrical bare cell including a cylindrical can and a cap assembly coupled with the cylindrical can, wherein the cap assembly forms a first electrode and the cylindrical can forms a second electrode; a protective circuit module (PCM) separated from the cap assembly, connected to the cap assembly by a first connecting tab, and connected to the cylindrical can by a second connecting tab; a first external terminal provided on a top of the PCM; and a second external terminal electrically connected to the PCM and provided on a bottom surface of the cylindrical can.