Inverter shutting off after powering PC

DIY
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Hello everyone.

I was using my PC in my van without issue for several weeks. A few days ago it randomly shut off, the inverter and my touch 50 restarted. When I check the notifications page for errors, nothing showed up.

Since then, it’s happened 3 more times. Once again while I was on it, immediately after I tried to turn back on it happened again. Then after waiting for several minutes, I was able to boot to my home screen before it happened again.

No breakers are flipped at my distribution panel. I am using the Victron Multiplus ii on a 120V system.

Some more information that might help:
On the Victron app it looks like the solar controller is on absorption mode, but the bank is only reading 68%. I would think the amount would need to be higher to enter absorption mode?

Also I have a relay switch panel wired in on the 12v side, it has a voltage readout that was fluctuating a bit wildly. at its highest it was reading 14.4 with the bank at 68%.

I’ve since turned off the AC side, including the inverter.

For reference, I have travelled in the van, hooked to shore power, etc without issue until now.
Any help is appreciated

2

A poor connection somewhere in the 12V system creating a high resistance and voltage drop. This would increase solar charging voltage to 14.4V with a depleted battery, lead to fluctuating voltages and possibly trip your inverter on low input voltage.

Check every connection is tight from the battery terminals to bus bars and all connected devices are tight, that your crimps are tight, no frayed wires, fuses, breakers and isolation switches are OK. Do you have a multimeter that you can check for voltage drop with as this can make finding a loose connection or failing breaker easier. Check both positive and negative wiring.

1 Like
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I will do that. I have been travelling on some rougher roads so a loose battery terminal isn’t out of the realm of possibility.