0.7 Joules. The Patriot Dual Purpose Fence Chargers can either be powered by a 110-volt pug-in or a 12-volt battery. Includes an AC and DC power cord for easy conversion. Blinking light to indicate the charger is powered. Suitable for keeping all kinds of livestock and horses in as well as wildlife out. 2-year warranty including lightning.
Will power up to 15 miles or 60 acres.
This P5 is advertised for up to 15 miles or 60 acres. It works, but it is not hot enough for my calves to feel. I have 5 barbed wires around 40 acres plus a single hot wire. I need the old style you could hear thumping. they would hurt you and keep calves in.