- The system of active materials within a cell that provides electrical energy storage through an electrochemical reaction.

 - The terminal of a battery from which electrons flow in the external circuit when the cell discharges. See Positive Terminal.

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A rechargeable battery or cell (see also Secondary battery). 

 - An Ampere or an Amp is a unit of measurement for an electrical current. One amp is the amount of current produced by an electromotive force of one volt acting through the resistance of one ohm. Nam [..]

The number of ampere-hours which can be delivered by a battery on a single discharge.

 - During discharge, the negative electrode of the cell is the anode. During charge, that reverses and the positive electrode of the cell is the anode. The anode gives up electrons to the load circuit [..]

 - Batteries with water-based electrolytes. The electrolyte may not appear to be liquid since it can be absorbed by the battery’s separator.

 - An electrochemical device used to store energy. The term is usually applied to a group of two or more electric cells connected together electrically. In common usage, the term “battery” is also app [..]

 - The electric output of a cell or battery on a service test delivered before the cell reaches a specified final electrical condition and may be expressed in ampere-hours, watt- hours, or similar uni [..]