Electronic equipment, vehicles etc. have batteries for electric power. There are many types of batteries depending on the size of the device and the power requirement. Power cells and batteries are small devices that generate electric power. Mobile phones have a small box-like lithium battery. Lithium is an instantly reacting metal. Mobile batteries have a thin layer of lithium and carbon. Lithium works at positive and carbon negative levels.
When the two connect, ions start flowing from the lithium to the carbon and an electric current is generated. In a lithium battery the carbon itself returns the positive ions it has obtained and the battery continues to power. Lithium ions become neutral so the battery goes down and can be recharged with a light current from outside. The battery of a mobile usually lasts for 8 hours though the usage and talk time of the mobile also plays a part in it. Mobile batteries can usually be recharged a thousand times.
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