High Tech Pet Charger Kit with Backup Battery CRG-12V for High Tech Pet Power Pet Doors

External charger kit with backup battery for your Power Pet electronic pet door. Includes charger base, AC adapter and one rechargeable B12V-1.3 backup battery. Allows you to operate your Power Pet Door in battery-only mode, eliminating the need for an AC wall connection. For battery-only operation, purchase an additional backup battery; then 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-second.