ajdelange
Well-known member
- First Name
- A. J.
- Joined
- Dec 8, 2019
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- 2,173
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- Virginia/Quebec
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- Tesla X LR+, Lexus SUV, Toyota SR5, Toyota Landcruiser
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- EE (Retired)
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- Thread Starter
- #16
The first step was to go to the modular rectifiers capable of 24A each. This made sense as that's the number needed for 3 phase mains which are found in some parts of Europe. It also made sense as you could put two in a US sold car and get 48 charging which is adequate for vehicles with smaller batteries. You could also install a 3rd module getting up to 72A and sell that as and enhanced charging option which they did. Not quite the 80A that the original dual charger scheme allowed but pretty close.
Then at the end of 2018 they stopped offering the enhanced charging option and in early 2020 stopped selling EVSE that could support more than 48 A even though they have a new vehicle coming which will demand more than that. I really think the reason they have done this is that they don't want to be exposed to any potential liability associated with EVSE requiring more than a 60 A circuit. Above 60 A a separate, locakable disconnect is required and I'm guessing people were installing HPWC without these. Crazy as it may be what a good lawyer does is make someone with money appear to be responsible for the actions of someone with none. So that's one guess.
Another guess is that Tesla knows or suspects that charging at 48 A extends the useful life of a 100 kWh hour battery relative to that available with 72 or 100 A charge rate.
Then at the end of 2018 they stopped offering the enhanced charging option and in early 2020 stopped selling EVSE that could support more than 48 A even though they have a new vehicle coming which will demand more than that. I really think the reason they have done this is that they don't want to be exposed to any potential liability associated with EVSE requiring more than a 60 A circuit. Above 60 A a separate, locakable disconnect is required and I'm guessing people were installing HPWC without these. Crazy as it may be what a good lawyer does is make someone with money appear to be responsible for the actions of someone with none. So that's one guess.
Another guess is that Tesla knows or suspects that charging at 48 A extends the useful life of a 100 kWh hour battery relative to that available with 72 or 100 A charge rate.
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