Ring Video Doorbell 3 Plus with existing battery doorbell

Hi, Can anyone tell me whether I can use my Ring Video Doorbell 3+ with an existing Battery-powered doorbell chime? It looks like many people have tried but not posted a clear final answer.I just need the switch to "make" (ie complete) the circuit so that current can flow. I read somewhere that this does work, but no clear answer about whether the Ring will try to charge from the battery supply, or whether it would be damaged by connecting to a DC supply when it otherwise would try to charge from an AC supply.Many thanks