{"product_id":"perimeter-technologies-six-pack-dog-fence-batteries-for-invisible-fence-r21-r51-collars","title":"Perimeter Technologies Six Pack Dog Fence Batteries for Invisible Fence R21\/R51 Collars","description":"\u003ch2\u003eProduct overview\u003c\/h2\u003e\n\u003cp\u003eMeet a cost-effective replacement option from Perimeter Technologies. These six lithium-ion batteries are engineered to power Invisible Fence receiver collars, specifically the R21, R22, R51, and Microlite models. They offer respectable energy density in a compact package to keep your boundary system ready for action without adding unnecessary weight to your dog’s collar. The six-pack format helps you stay prepared for routine maintenance and reduces downtime when a battery runs low.\u003c\/p\u003e\n\u003cp\u003eThe design emphasizes performance without bulk, so your dog can move freely whether indoors, in the yard, or on a short walk. When properly sealed inside the collar, the rubber waterproofing seal helps protect the battery from moisture during light rain, splashes, or damp conditions. This combination of efficiency and protection supports steady operation across everyday activities.\u003c\/p\u003e\n\n\u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompatibility with multiple collar models including R21, R22, R51, and Microlite for flexible replacement.\u003c\/li\u003e\n\u003cli\u003eAdvanced lithium-ion technology delivers higher energy density while staying lightweight.\u003c\/li\u003e\n\u003cli\u003eLightweight design helps maintain collar comfort during extended wear.\u003c\/li\u003e\n\u003cli\u003eRugged components provide extended durability and enhanced safety features compared to standard batteries.\u003c\/li\u003e\n\u003cli\u003eWaterproof sealing ensures protection when the collar is worn in damp or wet conditions.\u003c\/li\u003e\n\u003cli\u003eCost-effective replacement option to keep your system powered as needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReal-world use\u003c\/h2\u003e\n\u003cp\u003eIn daily scenarios, having a six-pack on hand means less downtime when a battery runs low. The compact cells fit inside the receiver collar without adding bulk, while the high energy density supports reliable signaling during yard play, walks, and training sessions. Outdoors or near water, the waterproof seal adds reassurance for weathering light rain or splashes. The lightweight construction helps maintain comfort on long outdoor excursions.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation and care\u003c\/h2\u003e\n\u003cp\u003eTo install, verify model compatibility, remove the old unit following your collar’s guidance, insert the new cell with correct polarity, and re-seal the collar to maintain waterproof protection. Always handle with dry hands and inspect the seal for a snug fit. Regular inspections help ensure continued performance and collar comfort.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSix replacement batteries tailored for Invisible Fence collars\u003c\/li\u003e\n\u003cli\u003eCompatibility with R21, R22, R51, and Microlite models\u003c\/li\u003e\n\u003cli\u003eReliable power for everyday boundary use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis replacement battery set is designed to integrate with existing Perimeter Technologies gear, offering a practical maintenance option for households relying on a reliable boundary system.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these batteries compatible with all Invisible Fence collars?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, designed as replacement batteries for R21, R22, R51, and Microlite collars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do installation steps require special tools?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, follow your collar's replacement steps and ensure a proper waterproof seal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Perimeter Technologies","offers":[{"title":"Default Title","offer_id":57197850231161,"sku":"B00BR0CAIC","price":74.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/8934\/1049\/files\/perimeter-technologies-six-pack-dog-fence-batteries-front-view.jpg?v=1777739274","url":"https:\/\/petlyvox.com\/products\/perimeter-technologies-six-pack-dog-fence-batteries-for-invisible-fence-r21-r51-collars","provider":"petlyvox","version":"1.0","type":"link"}