My Doorbell 4 won’t charge from old doorbell hardwires

I use to have a Ring Doorbell 2 hardwired to my old doorbell and worked fine. The battery was always 100%. I never had to charger the battery!
After 2 years I decided to upgrade to Ring Doorbell 4 and now every 2 months I need to charge the battery! Why? When I check the status is saying hardwired and shows the charging sign, but the battery keep discharging every day. I even bought a new battery. Thought the battery was faulty but still the same.! Why? What should I do? (Ireland)

Hi @SRG_Dublin. If your Doorbell 4s battery is not trickle charging when hardwired and the app is showing it is detecting that it is hardwired, try the following steps:

If you have tried these steps and are still having the same concern, give our support team a call at one of the numbers available here for further asssitance. If you are outside of the US, please visit here to see how to contact support.