Enerpe B3V 1A Replacement Battery High Capacity Compatible with High Tech Electronic Collars of MS-4 and MS-5 Pack of 12

There are a lot of batteries for a good price and work on pet collar.

Pretty decent battery life, and quality for your pets collar to use on their electronic doggy door. No need to pay the extra high prices for the original name brand one.

These have been working well with my dog's electronic entry collar. The batteries from the seller are way too expensive, and I have two dogs. I can't really say if the battery life is any better, or worse than those from High Tech pet, because I replace them every two months whether or not they may need it (I did with the manufacturers batteries too). They definitely last the two months.

These work great as a cheaper alternative. I am getting just as much life out of these batteries as I do the OEM battery at a fraction of the cost.

My puppies were so happy to see these batteries.Because these go to their collar and allows the door to open up.So they can go in and go out

These work well the majority of the time seem to have a decent battery life. Would like them to last longer.

They fit, and they work as they should.

Very Satisfied: fits perfectly and good battery life of about 4-6 weeks with a HiTechPet door-collar for my huge black cat who goes in and out often! He also sits in front of the door forcing it to stay open for quite a while--on battery power from the collar-- until he deems it to be the perfect moment to make his exit...cats be cats!