Doorbell 2 - Not staying charged with Plug-in Adapter

Hi all, I have a doorbell 2 that is plugged in using the OEM plug in adapter: [https://shop.ring.com/collections/accessories/products/plug-in-adapter](https://shop.ring.com/collections/accessories/products/plug-in-adapter) Device shows hardwired, but it still loses about 5-7% charge a day. I am getting upwards of 24VA out from the adapter. I get minimal motion and virtually no doorbell action. I've shortened the wire coming from the transformer as I've read elsewhere that that has helped some people, but I had no change in results. Any suggestions? Thanks in advance!