Charging Speeds between EVSE Brands

[cdale12]

I also went with the Emporia and hardwired to use 48A. It works great and has a 24 foot cable and sells for $439.

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[mkhuffman]

I also went with the Emporia and hardwired to use 48A. It works great and has a 24 foot cable and sells for $439.

It is by far the cheapest 48 amp charger with WiFi.

 

[Nklem]

Als, your speed will depend on your homes voltage. 2 poles can be 220v-250v. (Is your single phase 110V or 125V?) If you are lucky and have 250V, you will charge the fastest. If you get only 220V you will get about 10% less KWh. 250*48=12kWh, 220*48=10.56. My house is 242V, my mothers is 236V. I have seen some EV Owners question their capacity with the Ford portable charger when they have 220V*28A (the portables actual AMPs)=6.16 kWh. Also remember 10% goes to losses within the car charger. The EVSE is only a remote controlled breaker and current limiter, nothing else.

 

[RickMachE]

It is by far the cheapest 48 amp charger with WiFi.

... unless your utility company offers rebates for specific makes/models.

 

[Nklem]

A quick question for the Emporia Owners. Are they now UL listed/certified? I noticed on the website they were not a short time ago. “ The Emporia Smart Home EV Charger was designed with your safety in mind. We've contracted with UL to consult on our design and perform critical testing on the EV Charger; however, the initial summer 2021 run of chargers will not be UL certified. ”

 

[mkhuffman]

A quick question for the Emporia Owners. Are they now UL listed/certified? I noticed on the website they were not a short time ago. “ The Emporia Smart Home EV Charger was designed with your safety in mind. We've contracted with UL to consult on our design and perform critical testing on the EV Charger; however, the initial summer 2021 run of chargers will not be UL certified. ”

Mine is not. They claim they adhere to UL standards, but as of when I purchased mine, not listed yet. I am sure when that changes they will update their web site.

I wonder if there will be a problem with the 48 amp capability. When installing the wire for 48 amp operation, I did not see how the charger can determine it is hardwired or plugged in. So it is possible you can plug in and set the current to 48 amps.

I predict UL will not give approval until they have a way to prevent that from happening. It may be why other 48 amp chargers do not have a plug in option, or their current settings are mechanical, not controlled with software like the emporia one is.

A mechanical switch inside the unit would solve the problem. The electrician would switch it to "hard-wire" from "plug" only after removing the plug. Unless that was done, the unit would be hardware limited to 40 amps.

If you are concerned about this, I guess don't buy it. I am not concerned.

 

[Bill S]

I am using a Wallbox 40 (40 amp) with NEMA 14-50 plug on my 50 amp circuit because if the charger fails I can immediately swap in and use my Ford travel charger. All 48 amp chargers must be direct wired.

 

[cdale12]

They are UL listed now..

 

[Nklem]

They are UL listed now..

Good news. At $439 it’s the lowest cost Level 2 out there.

 

[mkhuffman]

They are UL listed now..

Unfortunately I believe that is for the energy monitoring device, not the charger. Unless I am reading the document incorrectly.

 

[RickMachE]

I am using a Wallbox 40 (40 amp) with NEMA 14-50 plug on my 50 amp circuit because if the charger fails I can immediately swap in and use my Ford travel charger. All 48 amp chargers must be direct wired.

If you have any electrical ability, it's quite easy to put an outlet on the box where the hard wiring is connected. Yes, for long term use, you'd want to also swap out the 60amp breaker for a 50amp. I figure that if my charger fails, which is I would think very rare, and I need to charge while awaiting a replacement, I can head to the big box store and buy an outlet and cover plate and connect it up.

 

[RickMachE]

Good news. At $439 it’s the lowest cost Level 2 out there.

Just to restate this, make sure you check your electric utility company's website for rebates or discounted charger purchasing. Some utilities buy the chargers themselves and resell them at a discount. Others, like mine, tell you that if you buy certain brands/models, which allow them to access the charging data, they'll give you a rebate. Mine happened to be $500, so buying a charger cost me less than $200, minus the 30% tax credit, even less.

Many people don't even go look.

In addition, Ford has a program with some utilities (mine at least) whereby you sign up for a program where you agree they can override your car's charging settings and stop it from charging, or make it charge, during peak demand / excess generation periods. My utility's program gave me $50 back in the summer, and another $50 last week. Since my charger prevents peak period charging, I let them play all they want since it had zero impact on me. And I got $100.

 

[cdale12]

Unfortunately I believe that is for the energy monitoring device, not the charger. Unless I am reading the document incorrectly.

You are correct. The charger is still not listed. But, who cares IMO.

 

[Rudy Bega]

... unless your utility company offers rebates for specific makes/models.

Michigan DTE offers 500 dollar rebates for ChargePoint and Juicebox only

 

[RickMachE]

You are correct. The charger is still not listed. But, who cares IMO.

Do you have a rise of heat indicator in your garage?

Do you like to make s'mores?

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