Best EVSE Setup for Two EVs on One Circuit?

[Vulnox]

Hi all,

Background info on getting the Lightning, can skip and just go to the next section, but just in case:
We have a 2022 Mach-e and a 2023 F-150 PowerBoost. My PowerBoost is a lease and was due to go back in July, but my salesperson who knows I have been considering a Lightning called me today and said they need to sell another Lightning before end of quarter to meet one of Ford's requirements and they are willing to waive my remaining PB lease payments and get me a Lightning Platinum that is damn near perfect, power running boards, spray in bed liner, everything I want except color, and my monthly payments go down compared to the PB.

EVSE Question:
I am moving ahead with the deal, but our garage is, frustratingly, about 3 inches too shallow to fit an F-150. So our Mach-e parks and charges, but the Lightning will have to live outside. I don't drive a ton every week which is part of the appeal of dropping the PB for the Lightning, but I do want to make charging easier.

What is the best current option for possibly adding a second EVSE to our existing circuit? I don't need to charge daily on the Lightning, but it will be a bit of a logistical headache to get the Lightning in place to charge where the MME is. It's a loooong run from our circuit panel to the garage, so would like to avoid running another circuit.

I searched and saw a couple posts, it looks like LightningRick has something he uses potentially with JuiceBox Pros, and I saw that the new Tesla Combo EVSE allows daisy chaining which may work well.

We currently have:
50 Amp Circuit
Chargepoint Home Flex

I am fine to sell the ChargePoint if we need to move to a better overall system.

Thanks for any ideas, this space moves fast so looking for the best of what's out there now.

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[DuBignon]

Hi all,

Background info on getting the Lightning, can skip and just go to the next section, but just in case:
We have a 2022 Mach-e and a 2023 F-150 PowerBoost. My PowerBoost is a lease and was due to go back in July, but my salesperson who knows I have been considering a Lightning called me today and said they need to sell another Lightning before end of quarter to meet one of Ford's requirements and they are willing to waive my remaining PB lease payments and get me a Lightning Platinum that is damn near perfect, power running boards, spray in bed liner, everything I want except color, and my monthly payments go down compared to the PB.

EVSE Question:
I am moving ahead with the deal, but our garage is, frustratingly, about 3 inches too shallow to fit an F-150. So our Mach-e parks and charges, but the Lightning will have to live outside. I don't drive a ton every week which is part of the appeal of dropping the PB for the Lightning, but I do want to make charging easier.

What is the best current option for possibly adding a second EVSE to our existing circuit? I don't need to charge daily on the Lightning, but it will be a bit of a logistical headache to get the Lightning in place to charge where the MME is. It's a loooong run from our circuit panel to the garage, so would like to avoid running another circuit.

I searched and saw a couple posts, it looks like LightningRick has something he uses potentially with JuiceBox Pros, and I saw that the new Tesla Combo EVSE allows daisy chaining which may work well.

We currently have:
50 Amp Circuit
Chargepoint Home Flex

I am fine to sell the ChargePoint if we need to move to a better overall system.

Thanks for any ideas, this space moves fast so looking for the best of what's out there now.

We have 2 Tesla Wall Connectors, one of which is universal with the integrated J1772 adapter, both on a single 60 amp circuit. Works exceptionally well and can recommend.

https://www.tesla.com/support/charging/wall-connector/power-management

 

[flyct]

You can daisy chain Tesla wall Connector and share a single circuit

The Universal Wall Connector has ability to supply to a second or third etc one. Plus it has both NACS and J1772 handles to connect to a vehicle. Eventually all EVs will be NACS..

 

[pjell]

Im also curious about this, but I currently have a single 100 amp circuit for the lightning with CSP. If/when we get a second EV, it seems like it may be more cost effective to share this circuit than run a new one, although it isn’t far. I don’t really need the full 80amps either for the Lightning.

Two tesla wall connectors make sense with this setup too? Looks like you could set up each to charge at 48 amps? Or is the 100 amp circuit a problem?

 

[flyct]

Im also curious about this, but I currently have a single 100 amp circuit for the lightning with CSP. If/when we get a second EV, it seems like it may be more cost effective to share this circuit than run a new one, although it isn’t far. I don’t really need the full 80amps either for the Lightning.

Two tesla wall connectors make sense with this setup too? Looks like you could set up each to charge at 48 amps? Or is the 100 amp circuit a problem?

My understanding is that the Tesla Wall connectors will only share up to 48 amps total. If 2 cars are being charged at the same time each only put out 24 amps or 5.7kWs to each vehicle.

 

[pjell]

My understanding is that the Tesla Wall connectors will only share up to 48 amps total. If 2 cars are being charged at the same time each only put out 24 amps or 5.7kWs to each vehicle.

That was my concern. Grizzle offers a dual charger that works similarly. Seems like a new circuit run might be best for us since I have capacity and it isn’t far.

 

[Vulnox]

Thank you for the ideas! I hate to toss money Tesla’s way but they seem to have one of the more reasonable options here. We probably don’t have to do it right away so maybe another company will do something comparable.

 

[flyct]

Thank you for the ideas! I hate to toss money Tesla’s way but they seem to have one of the more reasonable options here. We probably don’t have to do it right away so maybe another company will do something comparable.

I understand. We bought 2 Teslas before he went crazy. Last week we seriously looked at Mach-e to replace one our Teslas. We ended up swapping our 2023 Lightning Lariat for a new 2024 Lightning Platinum instead. . As much as we wanted to dump the Tesla for political reasons the Mach-e lacked the utility we needed and it was more difficult to get in and out of.

It reminds me of a friend who was a WW2 veteran. He wouldn’t ride in my Honda because Honda was made by a Japanese manufacturer.

 

[WileyKyle]

If you don't need to charge the MME and the Lightning at the same time it might just be easier to get an extension cable for your Chargepoint.

 

[queuewho]

That was my concern. Grizzle offers a dual charger that works similarly. Seems like a new circuit run might be best for us since I have capacity and it isn’t far.

I have a Grizzl-e Duo. It's not smart but it does power sharing to each connector just fine.

 

[derelict]

If you don't need to charge the MME and the Lightning at the same time it might just be easier to get an extension cable for your Chargepoint.

I second this. I use an extension because my Lightning won’t fit in the garage. Works great…

 

[Vulnox]

I second this. I use an extension because my Lightning won’t fit in the garage. Works great…

One of those popped up for me on an ad yesterday (of course) and it had me considering that approach. If I end up needing to drive a lot more I can worry about putting in a second EVSE, but for once a week or so the extension might be perfect.

 

[brewski]

We have 2 Tesla Wall Connectors, one of which is universal with the integrated J1772 adapter, both on a single 60 amp circuit. Works exceptionally well and can recommend.

https://www.tesla.com/support/charging/wall-connector/power-management

We have the same setup, seamless.

 

[mr.Magoo]

That was my concern. Grizzle offers a dual charger that works similarly. Seems like a new circuit run might be best for us since I have capacity and it isn’t far.

Power sharing is meant for lower powered circuits.
If you're running 100A to the FCSP there's nothing that says you can't derate that one to 50A (for the sake of the discussion), install a second charger utelizing the same circuit, and set it to 30A, or set both to 40A.

You can also get something like this as your second charger:
https://shop.emporiaenergy.com/products/emporia-level-2-ev-charger-with-load-management

In that case the FCSP would take priority and the Empoira would use up whatever is left of your availible 80A

 

[RickLightning]

First, remember that DTE will give you a $500 rebate, and then you MAY qualify for 30% tax credit on the remaining cost and install cost, location dependent.

Juicebox left the US. Currently the only way to get power sharing with them is to replace the boards with OpenEVSE boards, then a bunch of coding with Home Assistant.

Tesla is the way to go if you are OK with selling your ChargePoint.

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