The B300 is a powerful battery energizer for 12V and is suitable for very long multi-wire fences up to 30 km. The device is housed in a robust, water- and shockproof box in which the battery fits. (the battery is not included, you can order it separately). Indicator lights immediately indicate whether the fence is working properly and whether the battery is almost empty. The device has 4 positions Standard pulse mode: the device emits approximately one power surge per second; to let animals get used to the fence. Solar panel mode: to be used for animals that are active during the day. At night, the energizer reduces the frequency of the pulse to almost 3 seconds. Battery life is thereby extended by 20%. Slow mode: the time between two current pulses is extended to almost 3 seconds, for animals that are used to and respect the fence. Battery life is almost doubled. Night mode: to be used for (wild) animals that are active at night. The pulse frequency is reduced during the day. Battery life is thereby extended by 25%. The device is designed so that you can attach a padlock to prevent theft! The energizer has a connection for a solar panel to charge the battery. This means that you do not have to charge the battery every 20 days during the summer period, but only every 125 days!