Fi-Shock Electric Fence Garden & Pet Energizer 5 Acre Coverage - EDC5A-FS; Light-duty energizer perfect for garden protection and area w/o electricity; Powered by two D-cell batteries (not included) Light-duty energizer perfect for garden protection. Electrifies up to one mile under optimal conditions. Pulsing output for improved safety. Powered by two d-cell batteries (not included) Perfect for areas without electricity.