High Tech Pet Power Pet Door Battery Charger KitOur High Tech Pet Power Pet Door Battery Charger Kit charges your Power Pet door battery in about 4 hours. This convenient charger kit allows you to operate your Power Pet door in "battery only" mode eliminating the need for an AC wall connection. This kit includes one model B12V-1.3 battery, charger base and AC adapter. You can eliminate any down time by purchasing an extra model B12V-1.3 battery. Use one battery in your Power Pet door and keep the other in the charger base. When your pet door battery runs low, just swap. Battery change takes less than 30 seconds! For use with all High Tech Pet Power Pet Doors.