Capacity of Lead-Acid Cell

The capacity (C of a cell is the second electrical characteristic. It is determined by the quantity of electricity that can be delivered during discharge at constant current until the final discharge voltage is reached  

The amount of electricity, capacity, is a function of the discharge current and discharge duration until the cut-off voltage is reached  

Many empirical expressions have been proposed in the literature for the capac-ity/current dependence, but only that formulated by Peukert in 1898 has found wide acceptance  

Two characteristics were introduced to determine the electricity passed during 

Coulombic orAhE efficiency This is the ratio between the quantity of electricity passed during discharge (CJ and charge (Qd).  

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