AMA B400 Ranch Energizer for 9 or 12Volt Enclosure Power Supply Maximum Fence Length 3/4Km, Charge Energy 0.4/0.6 Joule Volt: 9/12V Charging Current: 0.4/0.6J Maximum Discharge Current: 0.26/0.37J Maximum voltage: 8.800/10.200V Voltage at 500OHMS: 3.100/3.800V Current consumption: 35mA Maximum length with strong vegetation: -/0.2KM Maximum length with little vegetation: 0.6/0.8km Maximum length without vegetation: 3/4km AMA Code: Original code: 36013 AT