Victron app displaying strange smart shunt data

descott12 · June 8

Hello all,
New tab owner so maybe this makes sense to more experienced users. We were boondocked and the app was showing a battery voltage of 13.19 but a state of charge of 100%. For a LiFePO4 battery 13.1 = 60% and 13.2 = 70% so it should have displayed somewhere in the sixties.
Screenshot attached.

Then another anomaly at around 9AM - the SOC jumped from around 80% straight up to 100% in just a few seconds. This was unhooked with just some early morning solar energy coming.
Screenshot also attached.

Neither of these makes sense. Any thoughts?
I am back on shore power and it is showing 13.75 V and 100% which does make sense.

Image: https://us.v-cdn.net/5021717/uploads/editor/by/yu1wz69kdf5b.jpg

Image: https://us.v-cdn.net/5021717/uploads/editor/ra/8r3dlvu74o3h.png

dlb · June 8

My first suggestion is to go into the settings and see if the battery type is for a lithium battery. If so, look at the state of charge settings for what the 100% charge is set for. I suspect that these are your issue.

Search the site as there are many threads on the proper settings for a lithium battery and solar panels.

descott12 · 2:15AM

Thanks alot. That was it. I had to disconnect the battery for something and for some reason, the devices forgot all their settings and were defaulted to AGM. I think I have it correctly but oddly, the Smart Shunt does not allow you to choose a battery type like the charger does so I had to tweak the settings and the manual is not very helpful. I will search this site as you suggested for the correct values.

descott12 · 3:04AM

I found a good YouTube that showed all the settings. Thanks again.

Marceline · 5:10AM

descott12 said:

Thanks alot. That was it. I had to disconnect the battery for something and for some reason, the devices forgot all their settings and were defaulted to AGM. I think I have it correctly but oddly, the Smart Shunt does not allow you to choose a battery type like the charger does so I had to tweak the settings and the manual is not very helpful. I will search this site as you suggested for the correct values.

I think it’s dumb, but the default setting for the SmartShunt sets the SOC to 100% when you connect a battery. So if your battery isn’t fully charged when you connect it, the SOC number will never be correct. The solution is to get a full charge on the battery and then synchronize to 100%.

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Victron app displaying strange smart shunt data

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