Hardwired battery doorbell not charging

Having the same issue with Ring doorbell3. Been fine for an entire year. All of sudden the battery fully dies and says the power source is “battery”. Recharged the battery and it’s still showing as “battery”. Transformer and power at the wires is good. Support is zero help, tells me this is normal behavior (not even understanding the issue). Junk. For the entire year prior the trickle charging from being hardwired has basically never dropped below 80% battery level. Looks like there’s no fix or support for this. Into the garbage it goes.