The Kerbl 372029 AKO EcoPower B250 plus is a genuine 9V battery-powered electric fence device designed for reliable operation on short fences with minimal vegetation. This energizer is perfectly suited for containing horses, cattle, sheep, goats, and poultry, offering optimized continuous performance. It delivers a maximum output energy of 0.25 Joules and a peak voltage of 10,000 Volts, ensuring effective animal control. The device operates efficiently with a power consumption of 25 mA and can manage fence lengths up to 6 km without vegetation. It is designed for use with 9V dry cell batteries and can also be powered by a 12V rechargeable battery with an optional adapter.