The other way to tell difference between V2 and V3 is the labeling on the posts. V1 and V2 have pairs of posts sharing a charging cabinet and sharing power. These are labeled with a number and A or B, (e.g. 2A, 2B, 3A, 3B).
V3 are in groups of 4, A,B,C,D per cabinet, but don't share power.
As...