These Invisible Fence® Brand compatible batteries are made by Pet Stop. These Invisible Fence batteries are compatible batteries to fit your Invisible Fence® Brand collar for as low as $9.99 each! These batteries are guaranteed to be compatible with your Invisible Fence® Brand R21 and R51 receivers produced any time in the last 5 years. These batteries are an exact aftermarket copy of the Invisible Fence® Brand Power Cap® battery.

Free yourself from that expensive Invisible Fence® Dealer's battery plan by trying our Invisible Fence® Brand compatible batteries The Battery Bottom Line: Invisible Fence® advertises their batteries to work for just over 90 days. That way the dealer can mail you a new one every 90 days. It a great marketing plan. But, it will cost you a lot of extra money. With our aftermarket Invisible Fence® Brand compatible batteries you could go a full six months for a fraction of the cost. If your receiver collar starts flashing the low battery light within the first 90 days, remove the battery for a minute or two and then reinstall it. The light should stop flashing, and you’ll be good to go for an extended period of time.

All of our aftermarket Invisible Fence® Brand compatible batteries meet or exceed the original manufacturer’s specifications of 90 days. Many customers have reported a 6 month + battery life out of each of our aftermarket Invisible Fence® Brand compatible batteries. The shelf life on these batteries is five years. Stock up on batteries now and save with our Free Shipping offer for orders over $50.00 REAL Invisible Fence batteries: Yes, we have a limited quantity available of the real Invisible Fence Brand batteries called the Power Cap. We have tested these batteries and they have all lasted us 6 months or more. The Invisible Fence Dealers mail out battery plan has you changing batteries every 90 days and trashing a battery that will last 90+ more days. If you want to stay with Invisible Fence brand batteries, we have them.