question

Just to help other reply to your question, you may want to post a screen shot of your inverter and charge setting in the Victron Connect.

@Edgargw22, you can set the low-voltage shutdown parameters yourself; if you have the requisite MK3 to USB Adapter for configuring your MultiPlus using a PC, you can find this setting in the VictronConnect app by connecting to your Multi, opening the Settings menu, and going to the "Inverter" settings... see the attached screenshot of it pulled up on a demo product.

Be advised that you cannot program or change settings via Bluetooth; you need to either be connected to a PC using the MK3 to USB adapter or a phone using the same adapter plus whatever adapter you need to convert from the USB-A connector on the MK3 adapter to your phone's USB connection.

@Edgargw22, I'd use VictronConnect rather than VE.Config just to compare, as the VE.Config's SOC shutdown feature is actually elsewhere, and I forget where exactly.

The settings I see above all seem about right, and depending on what you see in VictronConnect (on your PC, of course, connected through the MK3 still) I'm actually wondering if it might be that your BMV isn't wired or configured correctly. The Multi is not innately measuring SOC, it's relying on the BMV to report that data to it, so if -for instance- your BMV isn't configured properly to your battery bank's total Ah capacity, it would be reporting an SOC to the Multi that is inaccurate... thus triggering the Multi to shut down earlier than it should because its SOC shutdown is a function of the data that the BMV is reporting to it.

So:

Connect to your Multi through VictronConnect, using the MK3, and check the "SOC shutdown" settings as I showed in my screenshot. If that seems like it's set correctly, then go out to your BMV over BT on your phone and make sure your battery bank capacity is set correctly. If both of those things are set correctly, then double-check your wiring at the BMV shunt, making sure that ALL loads and charger negatives are connected to the "load" side of the shunt... it's possible that the BMV is reporting a low SOC because a charger is bypassing the shunt, which makes it invisible to the BMV.

If all that is five-by, then I'm currently fresh out of ideas...

@Edgargw22, sorry I missed your reply... without the "@" tag it's easy to lose track of what threads I'm on.

In re to your question, your above screenshots are showing the BMV-712 in VictronConnect, and all those settings look -at a glance- correct, though I note that the low-SOC alarm is set to 50%, which I think is likely to be the source of your problem.

I still suggest that you connect to your Multi using an MK3 to USB adapter and load it into VictronConnect where you can then easily check whether or not the low-SOC shutdown is enabled on the Multi. Your BMV is set to alarm at 50% SOC, so I wouldn't be surprised to find that your Multi is configured to shut down when the BMV alarms... which would neatly explain your Multi shutdown at ~50% SOC.

Alternatively, you could connect to your BMV and change the low SOC alarm setting to something like 30% (or whatever you want) and see if that changes the behavior of your Multi... if it does, then we've identified your problem.