2024.20.7 V3 Supercharging Curve Comparison Tested (w/ Improved DC Fast Charging Update)

[CyberGus]

Interesting. I've not known about that.

Is it something where the screen tells you "pre-conditioning complete" or something similar?

The pack temp is visible from the Service Menu, or from the 3rd-party apps like Tessie. I believe the screen always shows “preconditioning” while navigating to a Supercharger.

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[themuleman]

I use TeslaMate to log all of my data. Love the product!

https://github.com/teslamate-org/teslamate

https://docs.teslamate.org/docs/installation/docker/

LOL, changing YAML files and messing with containers (especially in Linus) will probably be over the top for some - especially the less nerdy types. Most don't even know what the # means in those screenshots, haha. That being said, this is what I use, it's a great tool.

 

[JohnnyDadBod]

the cooling rag on the handle shouldn't make a difference for V3 chargers as they are already liquid cooled internally. Definitely makes a big difference if you are in hot weather and are using a V1 and not sharing with a paired stall

It does actually make a difference as on the charge cable is liquid cooled. The handle is not and pushing over 600amps in order to achieve 250kW charge rates at <400V is generated a huge amount of waste heat. I’ve seen the charger contacts hit and slightly exceed 60C during peak charging loads and this derates the station to protect the equipment.

 

[flyinglow]

the cooling rag on the handle shouldn't make a difference for V3 chargers as they are already liquid cooled internally. Definitely makes a big difference if you are in hot weather and are using a V1 and not sharing with a paired stall

The rag is cooling the sensor in the handle (which isn't liquid cooled).

 

[CTSoFL]

LOL, changing YAML files and messing with containers (especially in Linus) will probably be over the top for some - especially the less nerdy types. Most don't even know what the # means in those screenshots, haha. That being said, this is what I use, it's a great tool.

 

[CTSoFL]

The rag is cooling the sensor in the handle (which isn't liquid cooled).

I don't know about you gatos...but damp/wet rag and high voltage electricity sounds like a very bad idea.

 

[JohnnyDadBod]

The millions of charging sessions in the rain have gotten the charging hardware much more inundated with water.

 

[jookyone]

I drove about 20 miles to precondition at 15%, didn't really see a stark difference, but there were about 10 cars at a 16 car location. It was 90°F outside though. I guess my expectations were a little high, but to be honest after 12k miles and coast to coast round trip I haven't really felt any different than any other Tesla I've had except 2023 Model X LR really adds the miles fast (product of efficiency + battery size).

 

[scottf200]

There is a lot of talk about the limitation of the handle and cable recently. Kyle/OoS has done a variety of testing. Branden (below) is in the charger/charing industry.

[UPDATE: When they eventually get v4 cabinets at the "v3.5" supercharging sites that have v4 pedestals (v3 cabinets) and they can operate at 800v that may be very beneficial. Less current/amperage for the same kW (eg 250 kW). Not sure if a similar issue would show up if they push to 350 kW for X number of minutes tho.]

[UPDATE 2: Even the 800v systems at 350kW (vs curr max of 250 kW) should run cooler with lower amperage/current.
625a = 250kw / 400v
438a = 350kw / 800v ]

 

[ModelCYBR]

Better than 14.3

 

[CyberGus]

How about a small fan, plugged in from the bed, to keep the handle cool ?

 

[scottf200]

How about a small fan, plugged in from the bed, to keep the handle cool ?

Wet rags (wring out) seem to be the common trick.

Maybe cold packs if you have a fridge in your vehicle or put in front of a vent between superchargers.

 

[JohnnyDadBod]

I ran another Supercharging test earlier in the day but still ran into reduced charging rate due to handle temperature. I used the damp rag trick and did manage a better curve, but still experienced throttling very quickly into the session. I also forgot and only tested till 80% SoC but that doesn't appear to be any different curve wise than my first session under 2024.20.7. arrived at 3% SoC in the newest test and was able to add 130miles in 15 minutes.

 

[Cyber Satoshi]

 

[zeke]

Much smoother curve in the cold, using v4 chargers (still capped at 250kW)

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