Doorbell chime not ringing

I am having trouble connecting a 1st gen Ring doorbell to an existing mechanical chime. I have done what the instructions say and I have spoken to Ring customer service and all they could do was to tell me to contact an electrician(cost more than the device ): . The house chime will not ring and the battery will not charge.

Hi @rgorilla. What is the make and model of your chime kit in the house? You’ll have to make sure the chime kit you have is on this list of compatible chime kits for the Ring Video Doorbell (1st Gen). I would also recommend fully charging the battery with the provided charging cable first before connecting it to the doorbell wires, as the wires will provide a trickle charge to help keep the battery topped off depending on the level of activity it gets.