{"product_id":"perimeter-technologies-replacement-collar-battery","title":"Perimeter Technologies Replacement Dog Collar Battery, compatible with Invisible Fence, R21, R22, R51, Microlite","description":"\u003cp\u003eThis replacement dog collar battery is a lithium-ion cell from Perimeter Technologies, made for Invisible Fence brand receiver collars. It fits the R21, R22, R51 and Microlite models and swaps in for the battery already in the collar. Seated under the collar's tight rubber waterproofing seal, the cell keeps the dog's electric fence collar lightweight.\u003c\/p\u003e\u003ch2\u003eWhich collar models does this battery fit?\u003c\/h2\u003e\u003cp\u003eCheck the model of the receiver collar before ordering. This battery is compatible with Invisible Fence brand collars in the R21, R22, R51 and Microlite versions. A collar outside those four models does not take this cell, and the battery is meant to replace the one already in a listed collar.\u003c\/p\u003e\u003ch2\u003eLithium-ion cell and the waterproofing seal\u003c\/h2\u003e\u003cp\u003eThe battery uses lithium-ion technology. Because it is a single cell rather than a pack of alkaline batteries, it keeps the dog's electric fence collar lightweight.\u003c\/p\u003e\u003cp\u003eThe cell remains waterproof once it is sealed inside the collar with a tight rubber waterproofing seal. That seal is part of how the battery sits in the collar, so it needs to be in place around the cell.\u003c\/p\u003e\u003ch2\u003eWhat reviewers say about the fit\u003c\/h2\u003e\u003cp\u003eSeveral reviewers mention that the battery fits well, and a few say it works as expected in their collar. Two reviewers report a short battery life, and two mention incompatibility issues with their collar. Three reviewers describe the battery as good value.\u003c\/p\u003e\u003ch2\u003eQuestions about the replacement battery\u003c\/h2\u003e\u003ch3\u003eWhich Invisible Fence collar models take this battery?\u003c\/h3\u003e\u003cp\u003eThe battery fits Invisible Fence brand receiver collars in the R21, R22, R51 and Microlite models.\u003c\/p\u003e\u003ch3\u003eDoes the collar stay waterproof with this battery inside?\u003c\/h3\u003e\u003cp\u003eThe battery remains waterproof when it is sealed within the collar using a tight rubber waterproofing seal.\u003c\/p\u003e\u003ch3\u003eWhat does the battery replace?\u003c\/h3\u003e\u003cp\u003eIt replaces the current battery in the listed Invisible Fence collar models.\u003c\/p\u003e\u003ch3\u003eDoes the battery add much weight to the collar?\u003c\/h3\u003e\u003cp\u003eThe lithium-ion cell keeps the dog's electric fence collar lightweight.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Invisible Fence brand receiver collars\u003c\/li\u003e\n\u003cli\u003eFits R21, R22, R51 and Microlite collar models\u003c\/li\u003e\n\u003cli\u003eReplaces the current battery in the listed models\u003c\/li\u003e\n\u003cli\u003eLithium-ion technology\u003c\/li\u003e\n\u003cli\u003eKeeps the dog's electric fence collar lightweight\u003c\/li\u003e\n\u003cli\u003eRemains waterproof when sealed within the collar with a tight rubber waterproofing seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat customers say\u003c\/h2\u003e\u003cp\u003eCustomers find the battery reliable, working just as well as name-brand alternatives, and appreciate that it fits their collars perfectly and serves as a great replacement. However, the battery life receives mixed feedback - while some report it lasts over 4 weeks, others mention it dies within 2 weeks of use. Compatibility is also mixed, with some saying it works great with their invisible fence collar while others report it doesn't work with their specific model. Additionally, durability and indicator light performance receive negative feedback, with customers reporting the battery falling apart and the red light starting to blink.\u003c\/p\u003e","brand":"Perimeter Technologies","offers":[{"title":"Default Title","offer_id":44458243326015,"sku":null,"price":30.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/2409\/1199\/files\/perimeter-technologies-dog-collar-battery.jpg?v=1794525648","url":"https:\/\/dogjointly.com\/products\/perimeter-technologies-replacement-collar-battery","provider":"DogJointly","version":"1.0","type":"link"}