This data-file models the possible battery sizes in a fully electric semi-truck. Lithium ion batteries up to 15 tons are considered, which could deliver 2,500 miles of range, comparable to a diesel truck.
However, large batteries above c8-tons in size detracts around 10% from the fuel economy of electric trucks, and may cause trucks to exceed regulatory weight limits, lowering their payload capacities.
4-6 ton batteries with 700-1000km ranges and 5-8% energy penalties may be best, and would likely add $110-170k of cost at 2020 battery costs.
Our roadmap to decarbonize trucking most prefers carbon-offset diesel, then hybridization with super-capacitors, then electric semi-trucks, and least prefers hydrogen trucks.