Pro 1 and Pro 4 battery compatibility?

[Hoser13]

Just ordered 3 new Pro 4 to reolace the 2xPro 1 that I have had for ages.  

Two questions:

1) can I combine the two models and have all 5 running under one secure account?

and

2) are the batteries interchangeable, or do I need to buy new extra batteries for the Pro 4?

[jguerdat]

1) Yes. The new cameras will need a subscription once the trial sub expires for cloud recordings.

2) The batteries are different.