A measure of actual power (Watts) drawn by an electrical load.

An electrical current whose electrons flow briefly in one direction to a peak before dropping back to zero and then flowing in an alternative direction before repeating itself. The waveform created is [..]

The number of Amps that a battery set can deliver in one hour.

The electrical current drawn by a load at a given supply voltage measured in VA.

A measure of system up time compared to its downtime expressed as a percentage.

The amount of time, stated in either minutes or hours, that a battery set or other power source will support the load.

A small storage device for electricity within a battery block.

A power cut or mains power supply failure, also referred to as an outage.

A high charge voltage applied to a battery set.

A drop in the normal mains power supply voltage, which can last from a brief period of a few cycles to days.