The Fenceman CP450 Battery Energiser has a high power output of up to 9,100v, making it ideal for all types of fences up to a maximum of 3000 metres. <br> <br> The CP450 is powered by a 12v wet cell battery (not supplied), or 4 x internal D cell batteries (supplied), which can be used for back-up power when the 12v battery is charging. Constant power output throughout the useful life of the battery means that there is no loss of output as the battery voltage drops. <br> <br> It has two power settings so it can be run at full power for maximum protection, or half power to increase battery life. It also features a power level indication light, easy to use on/off button, earth stake, connection leads, dual purpose mounting/earth stake, 4 x D cell batteries and installation instructions. <br> <br> The CP450 Battery Energiser is suitable for general farm use and recommended for horses, cattle, pigs and poultry.