80 Amp Charing for Cybertruck, Tesla WC Gen 4?

[ucmndd]

However I am pretty sure they will release an 80 A DC charger

Such a beast would probably cost like $4-5k. Not a terrible idea if they can get the price under control - put the charger on the wall instead of the truck for the people that think they need ~20kw charging speed at home.

I don’t see it as particularly likely. CT gonna ship with 48A onboard charger just like everything else.

 

[kpanda17]

You don’t get to just decide you want 3-phase service in any US residential neighborhood I’ve ever lived in.


SPAN doesn’t make a 3 phase panel.

My bad, Span 400 amp panel

 

[TessP100D]

My guess is the on board charger will still be 48 A (60 A circuit breaker). However I am pretty sure they will release an 80 A DC charger, like what Ford does with the Platinum Lightning. It would require a 100 A breaker. I would definitely install a 100 A breaker so you’ll be ready.

It’s more complicated than that.

 

[TessP100D]

Such a beast would probably cost like $4-5k. Not a terrible idea if they can get the price under control - put the charger on the wall instead of the truck for the people that think they need ~20kw charging speed at home.

I don’t see it as particularly likely. CT gonna ship with 48A onboard charger just like everything else.

Wow. So quick to guess.
thisnis supposed to be a new vehicle with new everything. 800 V system. We will see I’m not so quick to guess.
what WE NEED IS FOR TESLA TO TELLS US.

 

[ucmndd]

thisnis supposed to be a new vehicle with new everything. 800 V system.

People think “800 V” is gonna enable a bunch of magic things but it really doesn’t work that way. Can’t see how it makes any difference at all to L2 AC charging.

 

[E90alex]

People think “800 V” is gonna enable a bunch of magic things but it really doesn’t work that way. Can’t see how it makes any difference at all to L2 AC charging.

If Tesla hype men were to be believed, 800V 4680 LFP structural pack would instantly solve world hunger and bring world peace.

 

[TessP100D]

If Tesla hype men were to be believed, 800V 4680 LFP structural pack would instantly solve world hunger and bring world peace.

Bravo.
Crazy Elon and his Battery Day boasting.

where is it now?

 

[doghousePVD]

It’s more complicated than that.

What’s complicated? Install a 100 A circuit. “Worst case” is you over-speced the wiring for a 48A charger that needs a 60A line anyway.

No way is Tesla going to offer a residential charging solution that needs more than 100 A.

 

[doghousePVD]

In regard to the earlier discussion of 80 amp charging at home, in 11 years it was hardly used. Set the level at 32 amps and started the charge about 4 AM. The only time 72 amps was needed: when I forgot to plug in the night before. Now a Supercharger is a mile away, a great stop after a long drive if there is not enough time to charge at home.

I have 72 A charging. I have used it several times in the middle of the day for unexpected trips. Also occasionally come home late, and need to leave early in the morning. It is valuable to me.

Most folks live where there are more superchargers; I don’t.

 

[kpanda17]

I have 72 A charging. I have used it several times in the middle of the day for unexpected trips. Also occasionally come home late, and need to leave early in the morning. It is valuable to me.

Most folks live where there are more superchargers; I don’t.

I have dual G3 WCs at max 48amp fed from a 125amp subpanel in the garage
When I goto CT and it CAN use 80 amps, I’ll replace one of the 48s with the new WCG4 for 80 amp charging

 

[TessP100D]

What’s complicated? Install a 100 A circuit. “Worst case” is you over-speced the wiring for a 48A charger that needs a 60A line anyway.

No way is Tesla going to offer a residential charging solution that needs more than 100 A.

I have four large garages. Soon to have. 80 amps dedicated to each one for CT and my S. But running out of space in the panel. Looks like I will have to drop it to 50 amps each. need specs from Tesla Now.

 

[kpanda17]

I have four large garages. Soon to have. 80 amps dedicated to each one for CT and my S. But running out of space in the panel. Looks like I will have to drop it to 50 amps each. need specs from Tesla Now.

Remember all charging can be scheduled as to minimize the spike

 

[TessP100D]

Remember all charging can be scheduled as to minimize the spike

Good point.

 

[M CARLING]

For your main panel go 400 amp, 3 phase

Most utilities in US/Canada will not provide 3 phase power to residences. For those that do, it’s 208Y120V, so it would charge more slowly than 240V. 480Y277V is only available for large industrial customers.

3 phase 400 amp service would be 3x400x120 or sqrt(3)x400x208 = 144kw. That’s excessive for any single family home under about 1000 sq meters (11,000 sq feet).

So 3 phase is not a solution to charging faster at home.

If one really needs to charge a Tesla at home faster than 11.5kw, the onboard chargers and wall connectors support voltages up to 277V nominal. At 48A, that would be 13.3kw. However, the onboard chargers are (or were) limited to 12.5kw at higher voltages. So install a 70A or 80A 240V breaker, run wiring sized for the chosen breaker to an autotransformer that‘s 240V primary and 277V secondary, and then hard wire (don’t use a receptacle) a wall connector to the secondary of the transformer (wiring sized for 60A nominal / 48A continuous). Set the wall connector for 48A and charging will be at 12.5kw (or maybe 13.3kw if Tesla have upgraded the onboard chargers). An electrician will try to sell you a transformer rated at 13.3kva or higher. An electrical engineer will tell you that a transformer rated at about 5kva will be fine.

If you’re unfortunate enough to have 3 phase 208Y120V, then get an autotransformer with a 208V primary and 277V secondary.

 

[kpanda17]

Most utilities in US/Canada will not provide 3 phase power to residences. For those that do, it’s 208Y120V, so it would charge more slowly than 240V. 480Y277V is only available for large industrial customers.

3 phase 400 amp service would be 3x400x120 or sqrt(3)x400x208 = 144kw. That’s excessive for any single family home under about 1000 sq meters (11,000 sq feet).

So 3 phase is not a solution to charging faster at home.

If one really needs to charge a Tesla at home faster than 11.5kw, the onboard chargers and wall connectors support voltages up to 277V nominal. At 48A, that would be 13.3kw. However, the onboard chargers are (or were) limited to 12.5kw at higher voltages. So install a 70A or 80A 240V breaker, run wiring sized for the chosen breaker to an autotransformer that‘s 240V primary and 277V secondary, and then hard wire (don’t use a receptacle) a wall connector to the secondary of the transformer (wiring sized for 60A nominal / 48A continuous). Set the wall connector for 48A and charging will be at 12.5kw (or maybe 13.3kw if Tesla have upgraded the onboard chargers). An electrician will try to sell you a transformer rated at 13.3kva or higher. An electrical engineer will tell you that a transformer rated at about 5kva will be fine.

If you’re unfortunate enough to have 3 phase 208Y120V, then get an autotransformer with a 208V primary and 277V secondary.

This is an old post and now we know Tesla did not release a new 80 amp WC for the CT
Crazy to think how long to 5-90% charge 123kwh pack in rhe CT
My guess is 10-12 hours
This won’t work with TOU utility charging window
Not great

 

[Watts_Up]

This is an old post and now we know Tesla did not release a new 80 amp WC for the CT
Crazy to think how long to 5-90% charge 123kwh pack in rhe CT
My guess is 10-12 hours
This won’t work with TOU utility charging window
Not great

Unless you live in a house and have quite a few solar panels and powerwalls,
and can charge for free as long you have day light or enough stored electricity.

Note: Since the 800V battery of the Cybertruck has two 400V batteries banks
and uses a Double-pole, double-throw (DPDT) switch to getting efficent charging
when using a 400V supercharger, why not having the possibility to use two separate
L2 plugs to charge independently each battery bank to cut in half, home charging time.

The olderl Model S used to have a two in-board charger option,
so why not having such options, but with two separate plugs,
since some home with two or more EVs might already have two chargers?

I wonder also if the Cybertruck optional additional 50kWh
will have the possibility to get charged independently from the main battery?

 

[kpanda17]

Unless you live in a house and have quite a few solar panels and powerwalls,
and can charge for free as long you have day light or enough stored electricity.

Note: Since the 800V battery of the Cybertruck has two 400V batteries banks
and uses a Double-pole, double-throw (DPDT) switch to getting efficent charging
when using a 400V supercharger, why not having the possibility to use two separate
L2 plugs to charge independently each battery bank to cut in half, home charging time.

The olderl Model S used to have a two in-board charger option,
so why not having such options, but with two separate plugs,
since some home with two or more EVs might already have two chargers?

I wonder also if the Cybertruck optional additional 50kWh
will have the possibility to get charged independently from the main battery?

My bad and you are right, with proper management home battery storage permits TOU
Good point

 

[vcor]

My guess is 10-12 hours
This won’t work with TOU utility charging window

Depends on your rate plan. PG&E (California) has TOU from 9 pm to 3 pm (18 hours). That said, it would be very unusual to need 120 kW each day. Sounds like a lot of commenters here have never had an EV. I'm sure there are a few users that drive 200+ miles every day, but I bet 95% of owners travel less than 20 miles a day.

I wired for 100A 240V service for charging but ended up using a NEMA 6-50 (40 amp charging) with the Gen-1 Moble connector. Then over the years, I've found that was overkill and dialed down the charging to 20amps and start at midnight. In 5 years I've been doing that, I've always ended up with a full charge in the morning, and often it takes less than two hours to charge from the prior day's car usage - even at 20 amps! To be fair, we don't have to drive a lot each day. Sometimes returning from a long trip, it's at a low SOC, but we always have enough for the next day after charging overnight.

 

[E90alex]

Pretty sure I already mentioned it in this thread, but vast majority of people will not need to charge 5-90% daily.

Daily overnight charging even within TOU bracket will be more than enough to replenish what was used for the day.

 

[kpanda17]

Pretty sure I already mentioned it in this thread, but vast majority of people will not need to charge 5-90% daily.

Daily overnight charging even within TOU bracket will be more than enough to replenish what was used for the day.

Fair statements
Think it’s about flexibility
Rhe once in a while full charge
Visitors needing to charge

My wife and I share our EV and when we get the CT, epically in the summer running the beach dunes, we will be doing 5-80%
Our TOU window is way smaller 11pm to 6am