10 Pcs RFA-188 Compatible Replacement 3V Batteries Compatible with PetSafe Collars 10PK

These batteries fit perfectly inside the pet safe collars. I use a butter knife to turn them on and off. I’m not sure how long they last but for this price, I can’t complain. My dogs are not barking!

I will never buy anything but these kind. Way cheaper, they fit in the collar like they should, and again, you can not beat the price. I bought them for PetSafe inground fence for Cats.

These are a good price, but don't last as long as Pet Smart Batteries

Pleased with the package and the amount of batteries for my money! All thow they fit but very hard to turn on and off, I have to use a tool!

These work. The blue rubber gasket gets twisted a bit but it still keeps it waterproof. the battery life is equal or better than original. (Tested with meter and based on how long it lasted on an agressive barker)

You will get the light on the collar to blink, but either the battery dies in a matter of days, or the connection with the collar disconnects in short order. The blue rimmed material you see on the outside of the batteries actually glues itself to the inside of the plugin on the collar. I had to sit there for 15 minutes with a razor blade to get it all off the collar. If you're looking for a cheap alternative to the criminally over-priced PetSafe brand batteries for a RFA-188 compatible collar, look elsewhere. My yorkie is literally all over the neighborhood because these flat out do not work. DON'T BUY!

These fit as expected into the pet life collars and seem to maintain a good battery life.

Perfect fit, great price. Cannot fully evaluate the battery life, but it appears to meet or exceed OEM batteries.