Power Sag - Voltage below 80% to 85% of rated RMS voltage for one or more cycles.
Metal Hydride - An intermetallic compound or alloy in which hydrogen has been absorbed; also, the negative electrode in a nickel-metal hydride battery.
Duty Cycle - The operating regime of a battery including factors such as charge and discharge rates, depth of discharge, cycle duration, and length of time in the standby mode.
Charger - Device associated with the rectifier and used to supply the battery with the electrical power (DC current) required to recharge and/or float charge the battery, thus ensuring the rated backup time.
Wall-less Design - A battery design where the structural support for the cells is formed by an open plastic framework.
Microsecond - 1,000,000th of a second (mS).
Electrolyte - The medium which provides the ion transport mechanism between the positive and negative electrodes of a cell.
