Are forklift OEM's telling the truth when they say their big electric trucks with a Lithium iron battery can do double shifts, with intermittent charging. Now if a 6,000kg machine the lift speeds and travel speeds compared with diesel are slightly slower so if you were to say they would be around 20% less productive with lead acid batteries and about the same with lithium iron battery. So we can take this part of what they say as true. Now when you look at what the range would be its slightly different. Say they have an 120kwh lithium ion battery. The average usage for the 6 ton truck is 12.6 kwh per hour, based on a 8 hour shift that's 100 kwh leaving the battery with 20khw un used electric, now say the operator have one 30 min break and two 15min breaks during their shift and uses this time to recharge there truck using a 30 kwh charger this added to the charge left after the shift would give a starting shift charge of only 50 kwh, to complete the shift the truck would need at least 100kwh and say you would get a further 30kwh of charging through the shift this still leaves 20kwh short.