Doorbell 3 Plus - Hardwired charging issue (UK)

Hi, Another user here having issues with battery draining despite being hardwired to an adaptor to trickle charge the battery. My Setup : Video Doorbell 3 Plus (2 years old) Firmware version 10.0.392 x Batteries (swapped over every year) Hardwired to the correct version of plug adaptorRing Chime (2nd Gen) Both devices on their own WLAN SSIDBoth devices showing RSSI between -50 & -57 RSSILocation is in SE England so not very harsh weather.Issue : The Ring app alerts me that the battery is running low. - The device health via the app shows it's hardwired and the battery icon in the red but charging. - The device health via the Ring site 'MyAccount' dashboard says the Doorbell is on battery. - The battery level slowly drops as if the adaptor is not trickle charging, despite saying it is on the app health and battery icon.Resolution attempts : - Removed Doorbell from the app.- Factory reset Doorbell.- Changed batteries.- Swapped over the adaptor wires at the back of the Doorbell. Some screenshot links : Site dashboard health https://imgur.com/ZTKZVn3App Device Healthhttps://imgur.com/CxpXx0JApp battery statushttps://imgur.com/F24tGS5I did turn off the advanced motion detection last week and went back to the standard default zone detection, with 2 minute recordings of each motion captured. I thought that this had drained the battery too quick for it to trickle charge back, however going back to the advanced motion/zone settings this has not resolved the issue. I'm think that's pretty much all I can do without phoning support. Any ideas anyone? Thanks.