A battery (batteries plural) is a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power. It produces electron through electrochemical reactions and contains positive (+) and negative (-) terminals. Batteries consist of one or more electrochemical cells, which transform stored chemical energy directly into electrical energy. Types of batteries are Aluminium-ion battery, Flow battery, Vanadium redox battery, Zinc-bromine battery, Lead acid battery, deep cycle battery, VRLA battery, glass battery, Lithium air battery, Lithium-ion battery, Lithium ion manganese oxide battery.