The amount of energy available from a battery. Battery capacity is expressed in ampere-hours.
Battery capacity is effected by:
- Discharge rate - normally the higher the discharge rate the lower the capacity.
- Ageing - capacity will decrease will calendar life and based on the useage history.
Under well defined conditions this is often reffered to as the Rated Capacity as the battery capacity is likely to be different under different temperature, discharge rates and prior use.