The Browning Trail Camera Power Pack is the only approved external power source that should be used in conjunction with your trail cameras 12v DC input. When using the Browning Trail Camera Power Pack batteries should be installed in both the trail camera and the power pack.
It is not recommended to use a wall sourced power supply as they can potentially damage or cause inconsistent operation to your trail camera.
Using any unapproved power source can potentially void the warranty. For more information on the Trail Camera Power Pack click the link provided below.