The Energiser DP 350 B from Fenceman includes 4D cell batteries and can also be used with a 12 volt battery. With an earth stake included, it's ideal for paddock strip grazing and gardens.Alternative power sources4D cell batteries included or alternatively use a 12 volt batteryEarth stake includedIdeal for paddock, strip grazing and gardensIncreased energy output when operated from 12 voltAdjustable pulse rate from 20-60 pulses per minuteBattery: 6 volt and 12 volts