The Power Pet Door Battery Charger Kit lets you operate Power Pet Door
without an AC wall connection. A battery will power the door for up to two months or 500 openings and also allows the door to be fully operable during power outages. The kit includes the charger base, AC adapter and one rechargeable B12V-1.3 backup battery. It lets you 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. The battery change takes less than 30-seconds. Shipped directly from manufacturer.
Simply charge the battery for 12 hours and insert it in the door to provide one to four weeks of normal operation.