Extra 1/3aa Battery for Small Receiver collars

This Extra 1/3aa Battery for Small  Receiver collars is a spare battery if the existing battery is dying. The collar will show red blinking lights when it is time to change the battery.

This battery can last up to  2 years so you do not need to be constantly worried about charging the collar every few days or change the battery every few months.

This can be used for any of these PetBarrier Dog Fences Receiver Collars:

• Pet Barrier FM1200 Mini Electric Dog Fence Collar
• Pet Barrier Premium Mini R7 Electric Dog Fence Collar