At first I thought this was a Batrium issue:
However, when I set DVCC to 0A, it still allows up to 0.5A:
BMV-702 is the configured battery monitor.
MPPT charging is clearly being throttled, but it's allowing charge when it shouldn't.
I can set GX current limits at other times, and it doesn't go over, e.g., if I set to 30A, It will usually peak at 29.7A or something like that.
This is a concern for Lithium battery charging below freezing.