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How do overcharge & over discharge affect the Li-ion/Polymer battery?

April 26, 2017affect battery Discharge li-ion overcharge polymer

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How do overcharge & over discharge affect the Li-ion/Polymer battery?

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Optimum charge and discharge parameters are defined during the design of the Li-Ion/Polymer cell. Overcharge (voltages > 4.2V /cell) and over discharge (voltage < 2.4V / cell) will cause irreversible chemical changes to the cell. These charges will reduce the retained capacity and cycle life of the battery.