The AKO BD400 is a 12V battery-powered electric fence energiser designed for short fences with minimal vegetation. It features a control LED for monitoring battery and fence voltage, energy-saving circuitry for optimized power consumption, and deep discharge protection for the 12V battery. Housed in a robust, weather-resistant casing, it ensures durability and reliability. Includes fence and ground connection cables, and a warning sign. Offers a maximum output energy of 0.4 Joules and a maximum voltage of 10,500 V.