Amazon.com : PetSafe RFA-67 6 Volt Replacement Batteries - 2 Pack - Compatible with PetSafe 6V Lithium Battery-Operated Pet Products and Specific Dog Receiver Collars - RFA-67D-11, Black : PetSafe : Barking Deterrent Collars : Pet Supplies
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PetSafe RFA-67 6 Volt Replacement Batteries, 2 Pack, RFA-67D-11, Black - Walmart.com
Amazon.com : PetSafe RFA-67D 6-Volt Battery, Economy, 4-Pack : Pet Training Collars : Pet Supplies
Amazon.com : PET STANDARD Replacement RFA-67 6V Lithium Batteries Compatible With PetSafe Battery-Operated Pet Products and Specific Dog Receiver Collars - RFA-67D-11 (Pack of 10) : Pet Supplies