I measured the Cerbo GX uses around 3-5 watt, with Touch 70 attached (but off) and a GPS module.
I am using A 210Ah 24 (26v) lifepo4 battery pack with a bms that is multiplus incompatible.
So i installed a 500A smartshunt to the battery, which provides the SOC value.
Since this is installed on our boat, most of the time only the Cerbo GX is connected to the battery and the multiplus-II is set on charger only. I can switch the incoming shore connection using an external relay connected to the cerbo GX (VRM portal). Everything is working fine exept the smartshunt is not registering the Cerbo GX power usage, i think the current is too small. So over a period of time the battery drains but the SmartShunt SOC stay's 100%. How can i fix this? i would like the SOC to lower about 2.5% a day since the Cerbo GX would use 2.5% of the battery on a daily basis. (44 day's before empty) Is this possible in node-red mayby (no experience) Also i want to switch the shore connection on for a short time montly to keep the battery around 85% SOC, but that another question, and there is enough to find about that issue.
Please advise me!
P.s. I allready recalibrated the Smarshunt with no load attached.
