Each of the 250-kilowatt fast chargers can fully charge a typical medium-duty box truck from empty to 100 percent fully charged in about two hours and take a 20 percent charge to 80 percent in about an hour.

Source: https://www.sandiegouniontribune.com/business/story/2023-03-27/fast-chargers-for-commercial-trucks

Further down, medium-duty commercial vehicles posted a record uptake of 36.9%, while heavy-duty trucks and busses registered an increase of 23.1%.

Source: https://www.citizen.co.za/motoring/december-2022-new-vehicle-sales-south-africa/