LG revised their cell specs (not to be confused with changed the cells)

[Hammered]

Yes, Ford's battery charge curve and battery temp management is extremely conservative, to the point it lessens the product.

Ford only allows max 35ºC temps while DC charging, Tesla goes up to like 60ºC. Higher temps help improve charge acceptance and decrease thermal throttling. Ford should allow it to get up to 45ºC. Meanwhile, Ford allows 75 kW of regen when the battery is below freezing, vs. Tesla only allows like 30 kW to help prevent lithium plating battery degradation. So they are extremely conservative about some things, but almost careless about others, such as letting the pack charge while below 0ºC instead of heating it or limiting regen.

The other issue with the DC charging is the cable size, the DC cables are only 70 mm^2 so they cannot sustain more than about 100 kW continuous without overheating. However I think more performance can be extracted out of the cables, especially in cold weather.

I also think they should be able to get the 10-80% charge time down to about 36 minutes with existing hardware. That would be acceptable.

Now that they've upped it slightly to 40c, have you been able to achieve a new curve comparing to the 35c limit? Even with the limitations of the cables at ~110c, the temp should be showing up at the connector to throttle appropriately. The competition with similar cells are drawfing our capabilities and it seems like ford is dragging their feet without even hints justification for adjusting the curve.

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[Mach-Lee]

Now that they've upped it slightly to 40c, have you been able to achieve a new curve comparing to the 35c limit? Even with the limitations of the cables at ~110c, the temp should be showing up at the connector to throttle appropriately. The competition with similar cells are drawfing our capabilities and it seems like ford is dragging their feet without even hints justification for adjusting the curve.

https://www.macheforum.com/site/thr...la-supercharger-via-adapter.34568/post-772555

There are the amp curves from the last times I tested it. I couldn't get the battery warm enough to verify full speed, but the new curve seems "more smoothed out" but not necessarily faster. I think they are sticking to LG's datasheet for DC charge rates like glue, so there's little hope they will ever exceed what LG specified because of fear over battery warranty.

Still don't know if the slightly faster 2024 charge curve will come to us or not.

 

[Garbone]

I’ve been very lucky when I DCFC. If the EA charger doesn’t go above 100 when I plug in I move chargers. Before the curve update that I got I’d see 85kW usually anywhere from 20% to 80% SOC. After I usually hover right around 100 +/- 5 kW usually. But I have tempatures and usually good luck getting a charger area that’s not full. The Flagstaff Walmart always is full though. I always charge on 2 specific chargers there, and I don’t use P&C as it doesn’t work for me. The 1 time P&C worked my Max was 35kW on that charger. Here’s the kicker, I stopped that charge, started again with using FP to activate 85kW. Makes no sense that it worked but it did. I always have to activate via FP.

ER

Well, our job 1 21' has been in 3 times for low amp or no AC charging. Living with throttling our Emporia down to 20amps when Charging. I feel your pain. Every time I bring it in I fear the dealer will actually figure it out and test it properly and keep the car for months with the part on back order. So when they call and say "we did a software patch, should be good to 48amps." I consider myself lucky to get it back.

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