Replacement batteries for PetSafe inground and wireless fence receiver collars and bark collars. Each battery lasts 12 months. For PetSafe fence, bark and training collars. See compatibility chart below. Works with PIF275 models. If this product is not meeting your needs, please contact PetSafe Brand. PetSafe brand has been an industry leading US manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year. Call, chat or email the PetSafe USbased customer care specialists six days a week.