I have two MPPT 70/15 used by 180 W solar each and want to change charging parameters to install lithium batteries. When connecting via VE.direct, I get this error after running mpptprefs.exe
"
VE.Direct mpptprefs 1.11
Checking: COM4 => MPPT charger found
000.148 ERR.settings: push: vreg "battery_voltage" already present
========================== ERROR =============================
Duplicate vreg==============================================================
"
Can you please advise.
I have done the connection at night when no solar and have disconnected charger from battery. After connecting USB cable, have connected charger back to battery so, green light was blinking.
Please help :)