The receiver’s battery duration depends on how often your dog or cat challenges their boundary, and can last anywhere from three months to one year. The patented Flash Alert® feature will always remind you when your pet’s battery needs replacing, but if you would prefer to avoid the responsibility of remembering when to order replacement batteries, we can remember for you. Your dealer can set you up on a schedule that sends batteries to you on a regular basis. Most dealers have this program, but make sure to find out if your local dealer offers a Pet Stop battery replacement plan.