with regards to Forkdave,where he calculates how much it costs for the fuel consumption of an electric unit,
I think it is not easy to calculate what
it is the actual costs of charging.

I have read a technical article a few months ago that shows a different value.
this study calculates the electricity
required to charge a forklift battery
taking actual plant measurements of electricity consumption and forklift hourmeter readings.

According to this study prepared by LD Bailey and Associates the actual energy consumed is 23.5 KW hours to charge the battery for one hour of forklift operating run time. This means that the fuel costs of electrics would be higher and would even make LP trucks more advantageuos.

It would be interesting to see other studys using actual charger consumption data to have a realistic cost comparision.

Another point to consider is that there is a large variety of models of electric trucks so you can match exactly the job to the truck.

-michael