@Jack2257
Hi,
The Tapo D225 can be powered by a built-in Rechargeable battery or hardwired electrically.
If you want to charge the camera's battery with a power adapter and a USB cable, the power adapter's output should be 5V/2A.
For hardwire powered, please ensure the Tapo D225 is wired and supplied by an 8-24V AC, 10VA minimum transformer. Below are the detailed installation instructions.
How to install Tapo Doorbell (Tapo D235/Tapo D225/TD25)
Best Regards