Out of Spec Kyle explains how voltage and amperage work together to slow down charging cars with higher voltage batteries / architecture

[Yellow Buddy]

Great video, and in 1 take....dude knows his stuff. Had to open it up on youtube to give him a like, that was well done. Sounds like the Lightning should have no problems reaching its peak.

Didn’t watch the video yet, but isn’t that a Taycan in Mamba Green?

Sponsored

 

[Ice Age]

Good info here and go to the 6 min mark in my video and listen to the Ford Rep driving his Lightning explain charging. He claims 150-160Kw max charging is all you will ever get do to Ford limiting the energy strain on the battery.

 

[chl]

I found this video interesting in light of the Tesla system becoming available to all. He explains how voltage and amperage works together to slow down charging cars with higher voltage batteries.

Interesting info, but I think the most important question is how long will it take to charge your vehicle and to what percentage of "full."

Every vehicle has a designated CHARGE CURVE which in basic terms means that initial peak charging current does not last throughout the whole charge cycle.

So the current limits set by the DC charging source will really only slow down that initial peak charging period. Once the charge curve slope reaches reaches the source lower current limit, the charge time from then on will be the same.

The question of the voltage matching for 800v and up batteries and the equipment (DC-DC step-up conversion) which will reduce the charging current and therefore the charging power will mostly only be an issue in the initial charging process, again because of the charge curve limitation inherent in the vehicle battery.

Therefore I think some real world numbers on how the charge time is adversely affected for a particular vehicle, e.g., a Lightning, would be the most useful information.

With the upcoming roll out (soon?) of the Tesla Cybertruck which will be able to use the V4, as does the Tesla semi, with a peak charging of a megawatt, the fast charging infrastructure will have to be upgraded sooner rather than later, and will make these issues essentially moot for other vehicles using those chargers.

Other vehicles will only be limited, it seems, by their inherent battery charge curves as the V4 will be able to meet the initial peak charging demand without special on-board equipment (DC-DC step-up).

 

[Grumpy2]

The Lucid in the 2nd video max at 45 kw. This was about the Tesla chargers open now, and that the higher voltage cars will want to stay with EA to charge faster.

As for the CT coming soon .... we will see.

Sponsored