why is charge never stored in battery????

ohhhoooo...........sab jaag gaye lagta........[9][9].............itni der baad reply aaya........main to bilkul bhool gaya thaa ki maine kabhi ye question post kiya thaa...........tab baat aur thi........mujhe zyada pata nahin thaa..isliye poocha thaa..par ab zaroorat nahin hai.....[1][1]

anyways thanx for taking intrest

The more electrolyte and electrode material there is in the cell, the greater the capacity of the cell. Thus a small cell has less capacity than a larger cell, given the same chemistry (e.g. alkaline cells), though they develop the same open-circuit voltage.

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, the duration of the current, the allowable terminal voltage of the battery, temperature and other factors. The available capacity of a battery depends upon the rate at which it is discharged. If a battery is discharged at a relatively high rate, the available capacity will be lower , and hence the charge is never stored in the battery