Having issues with our victron system. We have a solar 100/30 MMPT controller a smart shunt, phoenix 12/500 inverter.
The issue we keep receiving is that the battery percentage will discharge like normal from a full charged battery and throughout the day solar will be put in via mppt controller. Which looks fine on the graph.
However after the system has been running for a couple of days like today for example; the battery got a low voltage warning but still reading 65% at 11.1 volts.
Through the day the battery current does increase when there is solar input is this normal?
I was thinking the battery terminals for MPPT controller should go straight to battery although I have been told that the negative lead should be wired onto
The system side of the shunt not directly to battery.
Any help or fault finding ideas would be greatly appreciated