AMA BT200 Ranch Energizer for Enclosures with 9/12/230Volt Power Supply, Maximum Fence Length 20Km, Charging Energy 3 Joule Volts: 9/12/230V Charging Current: 3J Maximum Discharge Current: 0.3-2J Maximum voltage: 10,000V Voltage at 500OHMS: 5,000V Current consumption: 30-130mA Maximum length with strong vegetation: 8km Maximum length with little vegetation: 4km Maximum length without vegetation: 20km AMA Code: Original code: 91911 AT