I see in the manual that the BT2 is sold out in Canada and the Manual has the #5 outlet as a “future Development”
Yet the manual does have the unit as compatible. DC Home App (iOS) version is 1.5 now. I wanted to be able to monitor DC-DC / MPPT and battery SOC while I learn all this.
Suggestions?
Annie, on page 7 of the manual, at least the version found here https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf the reference to the point marked as #5, which you speak of, is INCORRECTLY labelled by Renogy as one for future development. It is currently used, at least in the version of the DCC50/30S product I purchased near the beginning of 2021.
Renogy should update their manual to correctly label this port as working. Better, Renogy should have manuals for the various releases of the DCC50/30S IMHO that they have shipped since its introduction. My understanding is that Renogy has tweaked the design since its inception.
In my version of the DCC50/30S product this port is very much functioning as the means by which the BT-2 product you reference (and which I own) is not only energized, but communicates its status to the BT-2, which in turn, via the airwaves, communicates this status to either the Renogy BT app or DC Home app for smart phones.
Perhaps earlier versions of the DCC50/30S shipped with this port #5 inactive. I can't speak Annie to whether your version of the DCC50/30S product supports port #5, but I'll guess that if you note the various numbers from the sticker on the product and share them with Renogy in an email, they might be able to confirm for you if YOUR specific DCC50/30S unit has compatibility with the BT-2.
Never will the BT-1 be compatible with the DCC50/30S.
As to it being out of stock in what I will presume is your native Canada, I ordered mine from the States in which I reside and can't speak to exactly how ordering may differ for you as compared to me.
I hope this helps.