HOMEYUER External Power Supply Box with 2.5mm and 3.5mm Jack for Some Safe Box with External Battery Supply, 4 AA Battery Holder with Wires, 6V Backup Power Source for The Safe Box

The external battery pack is suitable for all keypad with female plug connector.

The battery pack will supply power to the module, allowing you to access the safe with your registered fingerprints or pass code to change the batteries.

The external battery pack is for some safe box,gun safe,key safe with the female plug connector on keypad of safe box.

In the event of battery failure, this External Battery Pack can be used to access the Safes by plugging it into the module on the safe.

If you encounter any problems or difficulties, please contact us and we will provide one-on-one service to help you solve your problem.