Anybody else experienced the following.
Victron Lifpo4 200Ah purchased April this year.
When my battery is about 6 or 7 °C it won't allow my to Orion's to charge in bulk, they will go straight in to absorbtion wathever the SOC is. Once temperature of the battery above 13°C there is no problem, the Orion's work fine together.
Same happens with a 'high' load.
When 6°C or something about that and I use my coffee maker asking around 120A out from the battery the voltage drop more then 1V. (Depends what SOC, with 55% I have seen it drop 1,2V)
Once the temperature inside the battery is higher the voltage drop with the same load is a acceptable 0,5V.
Together with the low inside temperature voltage is much lower then normal compared to SOC and LFP chemistry.
Heating up the battery with a heat gun (from a distance) results in much higher voltage without charging. (Easily from 13,10V to 13,25V with the same SOC)
Friend off mine with a 160Ah has the same issue.
My supplier will perform a test with other battery's, he never heard of it.
All wiring and connections are ok, checked and checked again. (50mm2 70cm long for the mulitplus, 16mm2 80cm for each Orion.)
Thanks for your advice
