Strange Victron Behavior

[SquirrellCook]

I have my habitation BMV 712 display so that I can see it without entering Murky.
Today it looked like it hadn't been charging. Firework damage?
No, looking at the 100-30 solar charge controller there was no charge!
Opening the app. It was claiming the temperature was -18 degrees.
I don't have a temperature sensor connected.
So, I disabled the temperature monitoring, and it started charging again.
Does anyone have an idea about this or a similar experience?

Mark

 

[wildebus]

I have my habitation BMV 712 display so that I can see it without entering Murky.
Today it looked like it hadn't been charging. Firework damage?
No, looking at the 100-30 solar charge controller there was no charge!
Opening the app. It was claiming the temperature was -18 degrees.
I don't have a temperature sensor connected.
So, I disabled the temperature monitoring, and it started charging again.
Does anyone have an idea about this or a similar experience?

Mark

I have seen that quoted before but can't remember the cause.
Don't you have a Cerbo GX and are sharing centralised temp info via DDC?

 

[SquirrellCook]

No David, this is the older setup in Murky.
The only thing that has changed is that it was setup for lithium.
Not connected, but another annoyance is that the Daly BMS's go to sleep, and you have to put a load on the batteries to wake them up.

 

[wildebus]

No David, this is the older setup in Murky.
The only thing that has changed is that it was setup for lithium.
Not connected, but another annoyance is that the Daly BMS's go to sleep, and you have to put a load on the batteries to wake them up.

Ah.
I had a quick search on the Victron community and only thing I found was a post from someone where the temp on their MPPT was down at -18C and their IP22 Mains Charger was at -18C another time. There was no explanation posted though.

Daly BMSs going to sleep? pretty typical and a regular issue with a lot of Lithium Batteries. The majority of Batteries on the market seem to have that very irritating 'feature' and people like Will Prowse and Aussie Andy don't realise as they are playing around with the batteries all the time and never actually genuinely fully testing them

 

[Sprinter 1 cup]

Have you up graded the software as I have .? Last weekend 3 blank days ! I dont have temperature on mine.
100 30.
But it started on june. 6th its just blank .....

 

[Sprinter 1 cup]

Just a pic of blank days. Mines just blue tooth