Ampere-Hour Capacity - The quantity of electricity measured in ampere-hours (Ah) which may be delivered by a cell or battery under specified conditions.
Trickle Charge - A charge at a low rate, balancing losses through local action and/or periodic discharge, to maintain a cell or battery in a fully charged condition.
Output (rated) - Apparent power Pn that the UPS can deliver under given load conditions (power factor = 0.8).
Current Drain - The current withdrawn from a battery during discharge.
Discharge Rate - The rate, usually expressed in amperes, at which electrical current is taken from the battery.
Forced Discharge - Discharging a cell in a battery, by the other cells or an external power source, below zero volts into voltage reversal.
Crest factor (Fc) - Ratio between the peak current value to the rms current value.