The AKO 372030 B500plus is a powerful and reliable 9V battery-operated electric fence energizer, delivering 0.5 joules of output energy and 0.7 joules of stored energy. Designed for mobile and smaller fence systems, it can effectively electrify fences up to 9 km under ideal conditions (no vegetation) or 3 km with medium vegetation. This robust energizer features deep discharge protection for the battery and an LED indicator for quick fence voltage checks. It is suitable for various animals including horses, cattle, sheep, goats, and poultry, offering reliable containment and protection. The B500plus also supports optional 12V operation via an adapter and can be combined with a solar module for extended battery life, making it a versatile solution for pasture management.