The Zareba 15 Mile Battery Operated Low Impedance Electric Fence Charger is ideal for controlling all types of animals including predators. This DC powered charger powers all types of fences including high tensile poly wire and poly tape even under heavily weeded conditions. With a 15 mile range it maintains maximum energy (joules) on the fence 0.87 stored-joules 0.8-joule output. 12-volt battery operation. It has a-voltage-control switch for shorter or clean fences and a 25% longer battery life over other low-impedance models. Safe effective high-voltage shocks are delivered with digital timing. Comes with a 1-year warranty that includes damage caused by lightning.