Charge Curve for big 2024.14.3 update

[Crissa]

Defeating a safety sensor is rarely a good idea.

I just Supercharged from 9% to 100% and the plug temperature hovered around 60°C.

That's not defeating a safety sensor, though. That's providing actual additional evaporative cooling.

One of the things one of the guys who did the TransAmerican Trail on a Zero did was attach a sprinkler head - a mister - to aim at the cooling fins on the charger and motor so it wouldn't go into thermal limiting.

It worked out since he was mostly charging at RV parks and there's usually a water spigot near the power ^-^

-Crissa

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[CyberGus]

That's not defeating a safety sensor, though. That's providing actual additional evaporative cooling.

Well, sort of. The system is calibrated for "typical" conditions. If you only cool the area around the sensor, then it might be fooled. I honestly don't know how many sensors are in the receptacle/plug/cable though.

I would also have reservations about adding water to a 600A connection lol, although a fan wouldn't be the worst idea

 

[Dmayo305]

Telsa badly needs actual V4 chargers. They are trying to pump 500A over 400V and that's a recipe for heat. Out of Spec managed to charge at 800V on an Electrify America charger, but had to use an adapter salad. Speaking of which, I need that recipe. CCS to NACS with a NACS breakaway adapter?

Good thing Elon just fired the entire Supercharger team. /Sarcasm

 

[Crissa]

Well, sort of. The system is calibrated for "typical" conditions. If you only cool the area around the sensor, then it might be fooled. I honestly don't know how many sensors are in the receptacle/plug/cable though.

I would also have reservations about adding water to a 600A connection lol, although a fan wouldn't be the worst idea

True, but the handle is where the connection is going to produce the most heat, at the contacts. And it should be measuring from more places than just the handle.

If the connection isn't waterproof, you couldn't plug in while it was raining.

-Crissa

 

[tripzero]

Telsa badly needs actual V4 chargers. They are trying to pump 500A over 400V and that's a recipe for heat. Out of Spec managed to charge at 800V on an Electrify America charger, but had to use an adapter salad. Speaking of which, I need that recipe. CCS to NACS with a NACS breakaway adapter?

Update, Kyle from Out of Spec just gave more details on the adapter setup he's using in their latest video (1k mile trip to California). He says he's using the Telsa OEM CCS adapter and EVJect. The adapter manual doesn't give me a current rating (says up to 500V), but the description says it can do 250kW which would put the current somewhere around 500A. Kyle thougth it was being pushed beyond it's limits at over 300kW that he was charging at, but said temperatures were acceptable.

If it's really rated at 500A, it'd be easily able to reach 400kW charging at 800V.

 

[CyberTruckeeTheOne]

That's not defeating a safety sensor, though. That's providing actual additional evaporative cooling.

One of the things one of the guys who did the TransAmerican Trail on a Zero did was attach a sprinkler head - a mister - to aim at the cooling fins on the charger and motor so it wouldn't go into thermal limiting.

It worked out since he was mostly charging at RV parks and there's usually a water spigot near the power ^-^

-Crissa

Pardon my ignorance, but isn't water and electricity a dangerous combo? lol

If I had my CO2 rifle, maybe I can puncture one canister instead as it's dry cooling.

 

[Crissa]

Pardon my ignorance, but isn't water and electricity a dangerous combo? lol

If I had my CO2 rifle, maybe I can puncture one canister instead as it's dry cooling.

Pure water is a bad conductor. Sweat is an okay conductor. It's all relative.

But the handle is waterproof. It has to be.

-Crissa

 

[CyberTruckeeTheOne]

Pure water is a bad conductor. Sweat is an okay conductor. It's all relative.

But the handle is waterproof. It has to be.

-Crissa

I always suspected that there is something magical about bodily fluids.

 

[CyberGus]

But the handle is waterproof. It has to be.

The charge port/connector is water-resistant, but the manual warns against hard sprays of water directed at it.

I'd love to have a Supercharging car wash, but that sounds like a lawsuit and/or Darwin award

 

[CyberGus]

If I had my CO2 rifle, maybe I can puncture one canister instead as it's dry cooling.

I've wondered why Tesla doesn't have active cooling on the vehicle side of the connector, like they have on the cable. I'm guessing that the HV battery is the thermal choke point here, and an overheating plug is an abnormal condition from a poor connection.

 

[CyberTruckeeTheOne]

I've wondered why Tesla doesn't have active cooling on the vehicle side of the connector, like they have on the cable. I'm guessing that the HV battery is the thermal choke point here, and an overheating plug is an abnormal condition from a poor connection.

Agree, and recirculating coolants are cheap.

 

[flyinglow]

Out of Spec has done this for numerous vehicles including the EV pickups:
https://outofspecstudios.com/charging

The Silverado EV blows everyone away at this point.

 

[ModelCYBR]

This was for latest firmware uodate

 

[Crissa]

The charge port/connector is water-resistant, but the manual warns against hard sprays of water directed at it.

I'd love to have a Supercharging car wash, but that sounds like a lawsuit and/or Darwin award

Well, if it was a robot, it could have an exclusion area around the charging port.

-Crissa

 

[Crissa]

The Silverado EV blows everyone away at this point.

...or not, since it also got the *lowest* score.

That chart is much worse for the Cybertruck than this chart:

-Crissa

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