Gallagher 2.0-Joule S200 Solar Fence Energer

The Gallagher S200 Lithium Solar Fence Energizer is a powerful, portable unit built for farmers, ranchers, and landowners who need high-output fence power across large acreage without access to grid electricity. Delivering 2.0 stored joules, the S200 is well-suited for livestock containment, rotational grazing, and predator exclusion under good conditions with proper grounding and minimal vegetation contact. Two built-in rechargeable 12V batteries provide up to three weeks of backup power, keeping your fence live through extended periods of cloudy weather or reduced sunlight a meaningful advantage for remote locations and off-grid setups where reliability is non-negotiable. The S200 offers two selectable power modes: Wildlife Mode pulses faster to deter stubborn predators and unwanted animals, while Full Power Mode automatically pulses faster during the day and slows at night to conserve energy when animal activity is typically lower. The lightweight, portable design mounts directly to a standard T-post for fast, tool-free installation, making it practical for temporary paddocks, rotational grazing setups, and portable fence systems that need to move with your operation. A weatherproof, UV-stabilized housing is built to handle rain, heat, snow, and extended outdoor exposure without compromising performance. Backed by Gallagher's 3-year manufacturer's warranty and U.S.-based customer support, the S200 is a dependable, low-maintenance choice for serious off-grid fencing applications.