Perimeter Technologies Compatible Invisible Fence R21 And R51 Dog Collar Replacement Battery Three Volt Lithium Power Cell One Count

Keep your pet secure with a reliable power source. The Perimeter Technologies Compatible Invisible Fence Dog Collar Replacement Battery is engineered specifically for pet owners using classic electronic containment systems. Designed to seamlessly fit the R21, R22, R51, and Microlite receiver collar models, this premium replacement battery ensures continuous, uninterrupted performance to keep your pet containment system functioning flawlessly. Crafted with a high-capacity three volt lithium cell, this battery delivers optimal energy density for long-lasting operation, typically lasting between three to six months depending on individual settings and boundary training usage. It features a robust, tamper-proof outer shell combined with an integrated rubber gasket that creates a complete watertight seal. This specialized construction ensures that your dog can run, play, and explore through wet grass or rain without risking power failure or water damage to the internal collar components. Choosing this premium imported option provides a highly reliable, exact-fit alternative to standard proprietary power caps, delivering the same dependable voltage and lifespan required to keep your pet safely within their designated boundaries. Keep your wireless fence system operating at peak efficiency with a fresh, durable replacement battery built for longevity and precision compatibility.