4 100mh BB's. Set up per victron 712 instructions. 14.4 charged, discharge floor 5%, tail 4% peukert 1.05, charge efficency @99% batt starts synch, On shore the SOC goes down. Consumed ah are at -210 although on shore for 30 hours. Multi Plus Inverter shows on storage at 13.22v. SO, why they heck does bat show 49% and why not fully charged given on shore for 30 hours? Why any discharge forgetting whether soc is calculated correctly?