Check the listing for details. Perimeter IFA-001 Dog Collar Batteries For Invisible Fence R21 R22 R51 Microlite. Condition: New. Listed at 11.99 USD. Untitled DocumentStoreFeedbackContact UsPerimeter Batteries IFA-001 Compatible For Invisible Fence Dog Collar Product Description:These 3-volt lithium-ion batteries will replace your Invisible Fence brand Powercap R21, R22, R51, and MicroLite dog fence collars. The Perimeter Battaries are designed for longer and safer operation, it fits easily into your existing R21, R22 or R51 receiver made by Invisible Fence, but costs only a fraction of the price of Powercap batteries. They fit all Platinum, Titanium, Mink and graphite Series Receivers. The batteries are manufactured in the USA by Perimeter Technologies and designed by the former Chief Engineer at Invisible Fence company. Many dog owners report getting up to 6 month battery life out of each of our Invisible Fence Brand compatible batteries. The Perimeter Brand Invisible Fence Replacement Battery is the best solution for keeping your Invisible Fence Brand system. Features: - Average battery life of 3-6 months- Rubber gasket provides a water tight seal- Tamper proof design with coin slot for battery removal- Stronger contact material for better conductivity- Designed and Manufactured in the USA What's in The Box - Perimeter IFA-001 Replacement Batteries Additional Information : The Perimeter Battaries are designed for longer and safer operation, it fits easily into your existing R21, R22 or R51 receiver made by Invisible Fence, but costs only a fraction of the price of Powercap batteries. You no longer need to buy expensive batteries. Our compatible replacement batteries actually exceed OEM standards - they last longer and cost less. The Perimeter Brand Invisible Fence Replacement Battery is the best solution for keeping your Invisible Fence Brand system. RETURNSWe allow returns that are processed within the defined return date, as long as they are not damaged/used by the buyer, please contact us in advance in that case.SHIPPINGTypically, we ship in 1 business day after payment has been cleared. We ship First Class USPS to US continental 48 states. We do not ship to APO/FPO addresses. Local pickup is not allowed.PAYMENTSWe accept any payment verified by eBay.