I have the IP22 Blue Smart Charger connected my VE.Smart network with a Smart Battery Sense and LiFePO4 batteries in my RV. I can see that the charge function is disabled at 5°C and I assume it reenables at 10°C (I haven't ever waited that long). It would be nice to be able to set a lower reenable point (6°-9°C) that still ensures the battery will not be damaged, but not below the cutoff point. It's easy to get stranded somewhere with no battery power if the ambient temperature never gets back to 10°C before you have to leave. It's fine if this is an expert settings feature, but not having any control seems a bit draconian.
