This portable, easy-to-use, battery operated fence charger is ideal for controlling livestock and other animals in remote locations or areas without access to AC power. Our Zareba® 10 Mile Battery Operated Low Impedance Fence Charger has a 10 mile range and can be used in heavy weed conditions. It has 3 battery options: 4 D-cell flashlight batteries, and 6 volt, or 12 volt external batteries. 0.28 stored joules; 0.25 joule output at 400 ohms. Other features include: built-in ground-rod strap, built-in fence wire strap, a 3-position switch (1, battery-saver mode; 2, maximum output; and off) and digital timing. It has been built to UL safety specifications. Battery not included. Comes with a 1-yr warranty that includes damage caused by lightning.