Batteries are becoming an essential commodity in our lives as a source of energy to power appliances. It is critical to understand the chemicals and chemical processes involved for safer usage. (i) Define the commercial cells/batteries and their main characteristics.

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Batteries

A battery is simply an electrochemical cell or group of cells that generate electric current. Batteries are the devices that generate current using redox reactions. These reactions proceed by the transfer of electrons. An ideal battery or cell should produce a constant voltage. A battery should actually be light in weight.