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Your cart is empty.Perimeter Technologies saves you money with your compatible replacement batteries for Invisible Fence brand receiver collars. Why pay the hefty prices of their batteries when you can buy a brand you can rely on for much less? Perimeter Technologies has designed a battery that will replace your current battery perfectly in R21, R22, R51, and Microlite models. With much effort placed in the making of your batteries, it is guaranteed you will get a great life expectancy out of your collar. Perimeter Technologies Batteries consist of a New and Improved Japanese cell lithium-ion and have a high energy density, also keeping the weight down from your dog's collar. With the components that make up this battery, it gives the power to last longer and have better safety factors than the normal battery. Bring confidence that your collar will last and go easy on your pocket by purchasing your battery.
Ingrid B
Reviewed in the United States on March 17, 2025
long lasting. A good replacement for the original invisable fence batteries
online shopper
Reviewed in the United States on February 11, 2024
batteries for my 2 dogs invisible fence collars
abbatoir05
Reviewed in the United States on January 24, 2024
they appear to be exact fit and compatible to the invisible fence batteries. now waiting to compre battery life spans on both .
Alison Liparoto
Reviewed in the United States on December 3, 2023
Our battery for the invisible fence collar died and I needed a replacement. The brand ones are pretty pricy. This works perfectly! Definitely recommend and will be buying more when these 3 run out. Way better value for the money.
Cristina
Reviewed in the United States on July 24, 2014
Much cheaper then invisible fence brand! So happy I did not buy the battery plan through the company! I have 3 golden retrievers. I always take their collars off every night after their last frolic in the yard & make sure batteries have not loosened! My dogs are all over the place during the day & they are constantly mouthing on each other's necks & wrestling. I also at least once every three weeks test the collar just to be safe that it works (remember to hold it at knee height to test)! And even if the battery did not last like other people said in reviews you can literally by a whole other battery for the price of one invisible fence battery. I am telling you I'm going on since January with the same batteries!!! Not joking. I have no idea if it has to do with my dogs never testing the fence or what but I think these batteries are a win win, see for yourself!
Deb Denis
Reviewed in the United States on June 5, 2014
I followed the instructions which recommended waiting a full five minutes before putting in the new battery and waited even longer before she ever went near the signal field. The first battery lasted a reasonable amount of time. The second battery in the 3-pack died within 1 day of being put into her collar. The third batter lasted 2 days. I wanted this to be a good option because the name brand batteries are so expensive, but this was just a big waste of money.
MNL
Reviewed in the United States on December 12, 2013
I would give these a higher rating but I find that they do not last as long as one would expect. I find myself replacing these almost on a monthly basis. I may my areas of almost 4 acres that are in invisible dog fencing drain these batteries quicker than a smaller areas would. The price is great so I continue to buy them.
Joe D
Reviewed in the United States on April 29, 2013
The battery works well with our Invisible Fence brand collar. I've read some reviews stating they won't work with that brand, but we have not had any issues.
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