How To:Unlock an Igloo Keybox with depleted batteries
If the batteries in an Igloo Keybox 3 are allowed to run down before they are changed, you will be locked out of the device and unable to change the batteries. To work around this, the Keybox 3 includes a USB-C "jump-start" port at the bottom of the front panel.
To unlock an Igloo Keybox 3 after the batteries are depleted:
Plug a USB-C battery charger, or a USB-C cable connected to a power source, to the USB-C "jump-start" port on the Keybox unit.
Enter a valid code on the keypad of the device to unlock it.
Open the Keybox and replace the depleted batteries with a fresh set.