The S120 Lithium is Gallagher’s most powerful Lithium powered solar energizer, delivering 1.2 Joules of adaptive energy through market-leading solar technology. Whether you're managing livestock, nurturing pastures, or protecting remote boundaries, the S120 Lithium empowers you with reliable, off-grid performance built for nature’s rhythm. Lightweight, rugged, and ready to move, the S120 is designed for rotational managed grazing, ecological stewardship, and serious off-grid wildlife defense. It powers up to 35 miles of fencing, with intelligent energy control that adapts to sunlight and battery levels, ensuring your fence stays hot - even in tough conditions.