Hi Woodie,
It was 12 C outside, but we had the heat on in the club-house so 20C
There was no indication to say this. With the 10S the charge mode screen says 'winter' or 'cold' and or something like that.
Two other cellpro's were ok.
In the online manual it says the 10XP does not have this 'winter' function, but that is like how it was behaving.

Brian