Gallagher North America G390404 Solar Electric Fence Charger, Battery, 120-Acre, This 4 joule, multi-purpose fence energizer can be used as a plug-in Energizer or used with a 12v battery and/or solar panel. Powers up to 60 miles / 280 acres of clean fence and offers uncompromising performance. Features low impedance that will shock through weeds and brush. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.