Engineers hitting 1.2MW on Semi Megacharger

[CyberTrk]

Coming soon on your Cybertruck...

Engineers hitting 1.2MW on Semi Megacharger

Note: See the MCS connector (Megawatt Charging System)
who is the new CharIN standard (Charging Interface Initiative)
for for high-power charging of heavy-duty electric vehicles (HDVs) like semi-trucks Semi.
The maximum charging rate will be 3.75 megawatts (3,000 amps at 1,250 V DC).

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[JCERRN]

Gyatt dang thats nuts. Wonder how long that would take to finish off a CT

 

[Gaximus]

Gyatt dang thats nuts. Wonder how long that would take to finish off a CT

I calculated (I as in GeminI) these results by taking the Cybertruck’s 123 kWh battery capacity and applying a 4.0\times multiplier to its real-world 325 kW peak charging curve to reach your theoretical 1300kW limit. I then integrated the power over the state-of-charge (SoC) to determine the time required for each segment, assuming the charging speed still drops as the battery fills to protect the cells.

• 10% to 60%: 5.1 minutes

• 20% to 80%: 9.2 minutes

• 0% to 100%: 23.8 minutes

 

[Outdoors]

I calculated (I as in GeminI) these results by taking the Cybertruck’s 123 kWh battery capacity and applying a 4.0\times multiplier to its real-world 325 kW peak charging curve to reach your theoretical 1300kW limit. I then integrated the power over the state-of-charge (SoC) to determine the time required for each segment, assuming the charging speed still drops as the battery fills to protect the cells.

• 10% to 60%: 5.1 minutes

• 20% to 80%: 9.2 minutes

• 0% to 100%: 23.8 minutes

Too bad the CT has 4680. The batteries would crap out.

 

[REM]

Too bad the CT has 4680. The batteries would crap out.

My dude, there have been a handful of CTs charge at 500kW. Why are people on this kick that the 4680s are bad? They are still one of the most advanced batteries on the planet right now.

 

[CyberGus]

Too bad the CT has 4680. The batteries would crap out.

 

[hemiarch]

So can anyone please explain what the barriers are to a better charge curve on the CT?
As fantastic as my truck is, the supercharging performance is honestly less impressive than I expected.
Our 2024 model x honestly does better in terms of real world useable charge times.
I do understand that battery is smaller but the max charging speed is also less.
Both are obviously a huge step up from what our legacy p90D plus did but I was expecting a little more from the CT.

 

[Outdoors]

My dude, there have been a handful of CTs charge at 500kW. Why are people on this kick that the 4680s are bad? They are still one of the most advanced batteries on the planet right now.

500kW is not 1.2 mW wonderful try however my dude.

 

[Outdoors]

So can anyone please explain what the barriers are to a better charge curve on the CT?
As fantastic as my truck is, the supercharging performance is honestly less impressive than I expected.
Our 2024 model x honestly does better in terms of real world useable charge times.
I do understand that battery is smaller but the max charging speed is also less.
Both are obviously a huge step up from what our legacy p90D plus did but I was expecting a little more from the CT.

The barrier is the cell.

 

[CyberGus]

So can anyone please explain what the barriers are to a better charge curve on the CT?

Heat, mostly. You've probably noticed the AC working overtime while Supercharging.

Of course, you can charge despite the heat if you don't mind getting only 200 charge cycles instead of 2000. The curve protects cell longevity.

 

[hemiarch]

Heat, mostly. You've probably noticed the AC working overtime while Supercharging.

Of course, you can charge despite the heat if you don't mind getting only 200 charge cycles instead of 2000. The curve protects cell longevity.

So why doesn’t it charge faster in say cold snowy climates?

 

[CyberGus]

So why doesn’t it charge faster in say cold snowy climates?

IKR! In the cold, the AC can be more efficient, but you're still limited by thermodynamics and the ability to transfer heat from the cell to the coolant. Charging is actually slower when the cell is cold; there's a fairly narrow temperature range for optimal charge speed.

Theoretically, smaller cells are better at heat shedding due to the higher ratio of surface area to mass. The tabless design compensates for this somewhat by distributing the heat more evenly across the surface.

 

[REM]

500kW is not 1.2 mW wonderful try however my dude.

I'm not understanding your reply here. The Cybertruck's charge curve is not yet matured, and there are very few stations that can output the current top end at 500kW.

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