I have a strange problem where my Deye will not discharge any lower than 47.5v.

I can see that my JK-BMS is discharging 87w, so it is available to discharge more. I run the SOC on Voltage. The Battery Low Voltage setting is 45.5v, Shutdown is 45v, Restart is 46v. The min cell voltage allowed setting on the JK is 2.6v, so it is nowhere near undervoltage levels

Any ideas as to what is stopping it from dropping lower than 47.5v

Edited Wednesday at 11:382 days by championc

Found that Deye's have a Stop Battery Discharge setting which is set to 47.5v by Default

You are gaining next to nothing except stressing your battery bank more by attempting to go lower than 47.5V. I would recommend getting an additional battery rather than killing your current bank squeezing the last 5% or so.