Capacity - The total number of ampere-hours or watt-hours that can be withdrawn from a fully charged cell or battery under specified conditions of discharge.
Power source (alternate) - Backup source used in the event of a mains failure. The connection time and the duration of the source depend on the type of source used. (back)
Memory Effect - A phenomenon in which a cell or battery operated in successive cycles to the same, but less than full, depth of discharge temporarily loses the rest of its capacity at normal voltage levels.
Blackout - A zero voltage condition lasting for more than two cycles. Same as a power failure
Shelf Life - The duration of storage under specified conditions at the end of which the battery still retains the ability to give a specified performance.
Continuous Test - A test in which a battery is discharged to a prescribed end point voltage without interruption.
Circuit breaker (battery) - DC circuit breaker that protects the battery of a UPS.(back)
