So 1300 miles range? But do they typically need to drive 23 hours straight at 56 mph??? I'm thinking not.
The thing is battery technology is such that fast recharging to 80% takes just over half an hour. Provided the trucks stop every few hours (and there's laws for any given driver) it seems to be far less of an issue.
For those more extreme ranges, if you really need 1300 mile range, hybrid electrics are much more efficient and less massive, and with a better torque curve, than straight diesel.