Battery Capacity and Discharging

A battery s cell performance may vary over load cycle, over charge cycle, and over lifetime due to many factors including internal chemistry and temperature. 

A battery s capacity is the amoimt of electric charge which the battery can store. If there is more electrolyte and electrode material in the cell, capacity of the eell will be greater. A small cell has less capacity than a laiger cell with the same ehemistry. Because of the chemical reactions within the cells, the capacity of a battery depends on the discharge conditions such as the magnitude of the current. If a battery is discharged at a relatively high rate, the available capacity will be lower than expected. 

The relationship between cmrent, discharge time, and capacity for a lead acid battery is approximated (over a certain range of current values) by Peukert s law  

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Molten salt battery. Reserve battery. Fastest charging, largest and lightest batteries. Battery capacity and discharging. 

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