The genuine Kerbl 372893 AKO Power A 3300 is a powerful 12V battery electric fence energizer designed for robust animal containment. Featuring a maximum discharge energy of 3.0 Joules and a charging energy of 4.5 Joules, it can power fences up to 80 km under ideal conditions. This versatile device is suitable for cattle, sheep, goats, horses, wild boar, deer, and wolves, offering reliable performance even with medium vegetation (up to 15 km) or heavy vegetation (up to 5 km). It requires a 12V power supply. For optimal grounding, at least three ground rods are recommended.