• The Invisible Fence Collar Battery ( 4 Pack) is bundled with an eOutletDeals Pet Towel
• Perimeter Technologies offers a cost-effective solution by providing a compatible replacement battery designed for Invisible Fence brand receiver collars, specifically the R21, R22, R51, and Microlite models.
• Perimeter Technologies has innovatively engineered a battery to seamlessly replace your current one in the collar models listed above.
• These batteries incorporate advanced lithium-ion technology, boasting a superior energy density while keeping your dog's electric dog fence collar lightweight.
• Equipped with robust components, this battery delivers extended durability and enhanced safety features compared to standard batteries. It also remains waterproof when securely sealed within your collar using a tight rubber waterproofing seal.

• Is Discontinued By Manufacturer ‏ : ‎ No
• Product Dimensions ‏ : ‎ 3.6 x 1.6 x 2.4 inches; 1.76 ounces
• Batteries ‏ : ‎ 4 CR2 batteries required.
• Date First Available ‏ : ‎ August 25, 2016
• Manufacturer ‏ : ‎ Perimeter Technologies