Connected to shore power the SOC goes down more everyday. The system hovers over 13.5. Would love any help I can get. The MPPT is inside the RV and the batteries are under the coach about 10ft away. I am using the biggest recommended size cables for everything. I am thinking about getting the Smart Battery Sense Sensor since they are not both in the same enclosure, but I thought the 712 would send the voltage and temp info across the network to the mppt. Anyway the SOC has never gone up without me having to sync it to do so.
4X100AHU Battle Born Batteries LIthium
800 Watts Solar 4 200W 18V Panels in Parallel
12/3000 Multi Plus
712BMS With Temp Sensor
150/85 MPPT Smart Controller