A rechargeable battery including an electrode assembly, the electrode assembly including a first electrode plate, a second electrode plate, and a separator; a first terminal electrically connected to the first electrode plate; a second terminal electrically connected to the second electrode plate; a case accommodating the electrode assembly and portions of the first terminal and second terminal; a cap assembly sealing the case, the cap assembly being electrically connected to the first terminal; and dish-shaped first and second connection plates on the first terminal and the second terminal, respectively, the first and second connection plates being configured to invert in response to a predetermined pressure respectively applied to the first terminal and the second terminal.