PetSafe 3V RFA-188 is a reliable coin cell battery designed specifically for use in a variety of PetSafe pet products. This small, coin-shaped lithium battery provides a dependable power source for electronic devices such as remote training collars, bark control collars, and in-ground fence collars. Compatible with numerous PetSafe models, it ensures your pet’s devices continue to operate efficiently and effectively. Whether you need to power a bark control collar or maintain your in-ground fence system, this battery long-lasting performance to keep your pet safe and secure. Model Number: RFA-188