You can't claim it until the IRS fully updates their forms, and approves the software implementation of them.
On one page, TTX indicated they expected to update some of their energy credit forms by 1/29/2020....Don't know if that will include the Charging stations at the same time or not...could be a week late...check back ~1 Feb to see if it's been added in for you...if not, wait another week or two.