Gallagher S20 Solar Electric Fence Charger | Powers Up to 2 Miles of Typical Fence | Lithium Battery Technology | 0.2 Joule Solar Energizer for Poultry, Livestock, Gardens, and Pets

The Gallagher S20 Solar Electric Fence Energizer is a portable, high-performance solution for off-grid fencing needs. Designed for remote pastures, rotational grazing, or seasonal livestock containment, the S20 delivers reliable power to up to 8 miles (under ideal conditions) or 1–2 miles in realistic use. It’s equipped with a powerful lithium battery and high-efficiency solar panel that recharges quickly and runs for up to 3 weeks without sunlight. Smart adaptive energy control constantly monitors stored power and adjusts output to maximize efficiency—keeping your fence live through changing weather and light conditions. The S20 features a tough dual-insulated case, integrated carry handle, and built-in lightning protection, making it ideal for harsh outdoor use. Simple to install and easy to relocate, this energizer is perfect for electric fencing systems for cattle, horses, goats, or backyard animals. Backed by a 3-year Gallagher warranty, the S20 is a trusted tool for serious land and livestock management.Solar Lithium Technology | The S20 is Equipped with a Lithium Battery and High-Efficiency Solar Panel to Provide Superior and Continuous Operation in All Weather Conditions. Lithium Batteries Recharge Faster and Hold Their Charge Longer than Traditional Lead-Acid BatteriesPortable Power | Designed to be Easily Moved Around the Farm. Lightweight, Compact and Easy to Install and Move with an Integrated Carry Handle, Making it the Ideal Solution for Strip Grazing and Rotational Pasture ManagementIntelligent Adaptive Energy Control | Smart Adaptive Electronics are Constantly Monitoring the Solar Energy Being Stored, Measuring it Against the Battery Voltage and Adjusting the Output Energy to Ensure Your Fence is Powered for as Long as Possible – Rain or Shine, Day or Night.Protected Circuitry and Battery Longevity | The S20 Features a Dual-Insulated Plastic Enclosure that Protects Internal Components and Lithium Batteries from Extreme Temperatures, Allowing the Unit to Continue Operation in Extreme Cold and Heat. Gallagher Lithium Electric Fence Chargers are Protected by a Three-Year Warranty.Long-Lasting Off-Grid Fence Power | With up to 3 weeks of operation without sunlight, the S20 is ideal for remote fencing locations, rotational grazing systems, and areas with inconsistent weather. Keeps livestock secure without reliance on mains power or frequent battery swaps.