@GinoC have you had any success with this yet?
I have the same Luxpower SNA5000 with Shoto SDC10-Box5 setup. My app displayed 100ah capacity for about 2 months after the installation until one day it didn't. Now it's 50ah and the battery only charges to 94-98% (used to go to 100%). I didn't adjust any settings at all in this time.
The battery's over current/voltage light is also flickering, showing there's something wrong somewhere. The installer tried to change settings remotely, but nothing improved the situation. Now I'm waiting for them to come out later in the week hopefully...