Energizer / energiser
An electric fence energizer, also spelled energiser in some parts of the world (and sometimes called an electric fence charger) is a device that provides pulsed electricity to various types electric fences.
There are many different electric fence energizers, from simple solar powered options to much more complex monitored and multi zone units for high security electric fence systems.
Electric fence energisers can be used to power electric fences that are designed to control animals and livestock, protect commercial properties or be part of the perimeter security system for prisons or military faciltiies.
When you are shopping for electric fence energisers, pay attention to the joules provided by the unit, as this will determine how much wire each electric fence energizer can power.