Battery back-up, Power Pet Door (In Case of Lost Power)
Designed for use with the High Tech Pet Products PX-2 or PX-1 Power Pet Fully Automatic Pet Door, this heavy duty battery ensures that your pet can come and go as they please—even if there’s a power outage. Just snap it into the battery compartment of the door, and it will automatically recharge when the pet door is being powered by the AC wall adapter.. Keep your pet door working reliably with the High Tech Pet Products B12V-1.