Tuesday, February 17, 2026

We Finally Know How Fast The Tesla Semi Will Charge: Very, Very Fast




uber has shown us that for cerytain applications, the ev model works best.  there are also ample fleet opetations in  which this works.  there is nothing wrong with dominating even ten percent of the market.

understand that the preferred bias is for EVs.  get bover it ecause it eliminates tbe whole Ic protocol which is at its natural maximum, although not entirely.

none of that matters because a good enough EV solution is availablre everywhere anxd climbing.


We Finally Know How Fast The Tesla Semi Will Charge: Very, Very Fast


The trucks can add enough energy to charge six Standard Range Model 3s in 30 minutes. That's what 1.2 Megawatts of power can do.

The Tesla Semi has lived in this weird limbo since it was first teased nearly a decade ago. The truck is technically real, albeit in very limited production offered only to a few select early customers. Now, Tesla is ready to bring the truck to volume production and has released the final specs for the facelifted, production-ready truck.

Tesla has settled on two trims ahead of deliveries: a Standard Range trim that delivers 325 miles at a fully-loaded weight of 82,000 pounds, and a Long Range variant that reaches 500 miles—both with massive batteries.

Tesla hasn't said exactly how large the batteries in these trucks are; however, it did state that the efficiency is expected to be around 1.7 kilowatt-hours per mile. Doing some back-of-the-napkin math, that suggests an estimated 550 kWh of energy in the Standard Range truck and 875 kWh in the Long Range.

Tesla also says that the trucks will support Tesla's Megawatt Charging System, with the Long Range variant supporting peak charging speeds of up to 1.2 Megawatts. Both trucks will be able to charge up to 60% of their capacity in just 30 minutes.
 Standard RangeLong Range
Range325 miles500 miles
Curb WeightUnder 20,000 pounds23,000 pounds
Rear-Axle Motors33
Driver Power800 kW800 kW
Charging SupportMegawall (MCS 3.2)Megawall (MCS 3.2); Up to 1.2 MW
Time to 60% Charge30 Minutes30 Minutes
Electric Power Take Off (ePTO)

Given the Cybertruck's range fiasco, it's a breath of fresh air that Tesla was able to not only maintain its original stated range figure for the base-trimmed truck, but actually exceed it. However, it's unclear if Tesla can stick to the original pricing of $150,000 and $180,000. We've seen some evidence that the company is asking for closer to $300,000, but there's no confirmed price yet.

The Semi appears to be (at last) crossing the finish line after a long 98-month wait. It's finally reached the point where the specs are locked in, and customers who have been lining up for their chance to buy one will soon finally have the chance.

If Tesla can deliver on its promises—meaning, real trucks with real volume deliveries—it could justify the long silence. Because at the end of the day, logistics is about the bottom line. That's what Tesla promises to address with the Semi, which should have far lower operating costs than a gas truck.


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