the battery in a tesla would run a medium tractor for less than an hour. The tesla can produce more power - but soon it is up to speed and so making a lot less. Tractors are expected to produce their full rated power for 10 hours without stopping.

Maybe a row crop tractor, but a utility tractor is not running continuously for 10 hours. Just running around doing chores and a lot of that time is sitting idling a diesel engine.