My PetSafe® Vibration Bark Control Collar Has a Flashing Red Light
A fast-flashing red light on the collar indicates the collar is delivering a correction.
If the collar flashes red once every 5 seconds while powered on, this is a low-battery indicator. Replace the collar battery with a PetSafe® Brand RFA-188 battery. The battery can be purchased on PetSafe.com. For more information on how to change the battery, visit How To Replace the Battery in My PetSafe® Vibration Bark Control Collar.