3 Panels in Series with low temp coefficient... safe for Delta Pro?

[notsleepy]

I'm cutting it close on the Ecoflow Delta Pro max voltage here so I many thanks if someone can verify my math. I have 3 REC Alpha 365W panels in series for a total voltage of 132V (max is 150V for Delta Pro).
It looks like I'm safe even in very cold weather due to the low temp coefficient but I'd be very grateful if someone can confirm.
Online calculator says 48.752V at -4F.

 

[notsleepy]

Phew. A NASA engineer replied in the ecoflow group with his custom calculator. "You're actually good to -31.8C in a 3S array".

 

[stva]

Phew. A NASA engineer replied in the ecoflow group with his custom calculator. "You're actually good to -31.8C in a 3S array".

Is there a link to that calculator somewhere?