Ring Doorbell 3 Plus showing hardwired but not charging. Battery Keeps dropping

I have had my doorbell since October. It has been hardwired since it was installed. This week I get a message that the battery is critically low. (3%) I checked voltage at doorbell and it is fine. I have no internal house chime, I am using the Ring chime devices. I only had time to do a partial charge on the the battery yesterday to 50% and it is down 48% today. App says its hardwired but not showing a charge indicator on the battery. I have done a full reset of the doorbell and still is showing the same. What should I do next?