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The watt-hour efficiency of a lead-acidcell varies between |
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Answer» It is a ratio between the energy which a cell gives out during discharging and the energy which it requires to regain its original condition during charging. It is expressed as, E% (Efficiency) = watt-hours on discharging/watt-hours on charging As, voltage on discharge is always less than voltage on charge. Efficiency is always less than 100%. For a normal lead-acid battery, efficiency varies from 80–85%. |
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