CYCLE LIFE

"The number of times a rechargeable battery (or a capacitor, especially an electrochemical capacitor) can be ""cycled"" (charged and discharged) before it loses its ability to accept charge. The processes occurring in the battery are not completely ""chemically"" reversible, and after repeated charging/discharging the battery will accept less and less charge till it becomes useless as a practical energy storage device. Some batteries can be recharged hundreds to thousands times. "