Mount and battery for Ring Video Doorbell 3 and 3 Plus compared to Ring Video Doorbell 2

Hi. Would just go to the store and check but with our Stay at Home Order than is currently not possible. So figured I'd ask here. I have the Ring Video Doorbell 2. I am considering the Ring Video Doorbell 3 or Video 3 Plus. My quesitons, are the mounts the same? In other works, can I remove the Ring 2 and just screw on the ring 3/3Plus? Also, are the batteries the same on the 2 and the 3?3 Plus? Thinking about the 3s as I have an Orbi and had to set up an extender to connect to the Ring 2 only at 2.4. The Orbi ability to switch between 2.4 and 5 GHz seemed to confuse the Ring 2. The 3s use the 5GHz band so hoping can by pass the extender. Believe the douter is close enough to the doorbell. Thanks in advance! Be safe.