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[Richard230]

According to an article in the business section of my newspaper today, written by Louis Hansen of the Bay Area News Group, Cummins has just introduced an all-electric demonstration truck powered by a 140 kWh battery pack.  They will also be selling this battery pack to bus operators and commercial truck fleets in 2019. " "The concept Urban Hauler Tractor - known as Aeos, after a mythological Greek horse - carries a range of 100 miles on a singe charge, with optional batteries extending range to 300 miles. The battery pack charges in an hour."  The hauler is designed for short local routes, with a maximum payload of 44,000 pounds, the company said."

[Alan Stewart]

It's just a prototype. I'd bet they retrofitted an electric drivetrain to an existing chassis design. Tesla's will be designed from the ground up and likely will have far greater battery capacity and range.

[Killroy]

140 kWh battery seems very small for a 100 mile all electric range.  Maybe with no load, so what will happen when its hauling 22,000 lbs?