Official title and information are available only for Plus and Premium subscribers.
Patent Pending A rechargeable battery, also called a storage battery or accumulator, is a type of electrical battery. It comprises one or more electrochemical cells, and is a type of energy accumulator. It is known as a 'secondary cell' because its electrochemical reactions are electrically reversible. Rechargeable batteries come in many different shapes and sizes, ranging from button cells to megawatt systems connected to stabilize an electrical distribution network.