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hlothery Is right, one is 40 amp the other handles up to 50 amps. The 6-50 NEMA CP uses this plug, a regular 220v home use for ovens and dryers, no need for special installation
Now the 14-50 NEMA CP Home Flex uses this plug, requires special installation by certify electrician. Max charging on this charging is 50 amps ( kwts rule amps x voltage = kwts, ie 50x220= 11 kwts
I hope this helps. When you link your phone app with your CP Home Flex it will setup for the right amp setting as far as your other question how to change the kwt rate that’s up to your electricity provider. If you apply to be part of home flex then your provider has control of your charger from 6 am to 9 pm. The Mercedes me app only controls amount of charge from 50 to 100 percent only. No Kwts. The provider uses a proxy connection thru CP Home Flex to change your kwt/amp charge rate. Therefore giving you a slow charge to avoid stress on the local grid. But if you have a straight connection with no flex account charge your amp rate.
Last edited by Lawen4ment; May 8, 2022 at 08:13 PM.
You guys are so AWESOME! I now have an account with ChargePoint and the app lead me through the process. One question remains. I think it only gave the option of 40 amps even though I have a 60 am circuit installed. I know that the max is 50 amps for the ChargePoint charger but why didn’t it give that choice? In any case, the speed has doubled from 3.8 to 7.6 kWs. That’s more like it.
Last edited by AppleFan1; May 8, 2022 at 08:24 PM.
Your max on a 6-50 is 40 amp. Go to home charger, then settings, then about charger. Model number should start with CPH50-NEMA14-50 anything else it’s only rated at 40 amps.
Your max on a 6-50 is 40 amp. Go to home charger, then settings, then about charger. Model number should start with CPH50-NEMA14-50 anything else it’s only rated at 40 amps.
Can the NEMA 4-50 be easily changed to a NEMA 14-50 or is it too much of a hassle? I think the ChargePoint advisor told me that I could buy a 14-50 at a local electric shop when I called them up after realizing back in December that perhaps I would be better off with the 14-50.
Use the formula I gave you that way you can see the difference. The max you will get out from a 16-50 is 10 kwts, the max you will get out of the 6-50 is 7 to 8 kwts in a good day. Now your EQS HV battery is a 108 kwts. If my charger output is 9.7 kwts an hour the formula is 108/9.7=11hrs from 0% to full charge, but it’s not recommended go below 15-20% and is not recommended to charge above 80% If charger output is 7.7 then it will take 14 hrs to charge. The thru cost of installing a 16-50 is between 500-1800 dollars. Most homes are not setup for a 6 to 8 gage 220v outlet. So it has to come from the outside electrical panel not the inside electrical panel. Most inside electrical panels are rated at one 60 amps breaker. This is why you need a certify electrician. Most EQS owners charge twice a week and for five hours at home at night. No stress your ok. I just wanted you to see the facts.
Last edited by Lawen4ment; May 8, 2022 at 09:29 PM.
I would direct wire it and not worry about it. The only difference between a nema 14-50 and a 6-50 is an extra neutral wire. I think some appliances use a 14-50 because they have dual voltages, maybe a motor running 240v and a control running 120v. The 6-50 is fine but direct wire may be the best. In addition, you may be able to charge another vehicle at 48amp. The EQS maxes at 40amp.
I would direct wire it and not worry about it. The only difference between a nema 14-50 and a 6-50 is an extra neutral wire. I think some appliances use a 14-50 because they have dual voltages, maybe a motor running 240v and a control running 120v. The 6-50 is fine but direct wire may be the best. In addition, you may be able to charge another vehicle at 48amp. The EQS maxes at 40amp.
I’m getting a bit confused. Is it easy to change from plug-in to hard wiring? If I have the electrician do that, will I get the 9+ kWt speed?
I’m getting a bit confused. Is it easy to change from plug-in to hard wiring? If I have the electrician do that, will I get the 9+ kWt speed?
No, it is not. If you bought a unit with a NEMA 6/50 plug, I'm not sure it can be direct wired, and there is no real advantage if you have the 6/50 outlet already installed. That is exactly what I am using. A 50 amp breakler means the circuit can deliver about 40 amps of electricity. So, if your circuit breaker is a 60 amp, and your ChargePoint will only go to 50 amps, set it at 50 amps, which is less than the wiring can support, but the most your ChargePoint device with a NEMA 6/50 plug can deliver. You should be able to toggle to the 50amp setting in the app. You should, then, be charging at around 9.6kW, which is exactly what mine does.
I hope this will help. Fact, there is difference in the models. Go to the link https://www.chargepoint.com/drivers/home/ I get 9.8 kwts with 16-50 model which is above 40 amps but like I said you can hard wire either model. But will it increase your amps on your charger maybe not. There are to many variables and I will confuse you more.
No, it is not. If you bought a unit with a NEMA 6/50 plug, I'm not sure it can be direct wired, and there is no real advantage if you have the 6/50 outlet already installed. That is exactly what I am using. A 50 amp breakler means the circuit can deliver about 40 amps of electricity. So, if your circuit breaker is a 60 amp, and your ChargePoint will only go to 50 amps, set it at 50 amps, which is less than the wiring can support, but the most your ChargePoint device with a NEMA 6/50 plug can deliver. You should be able to toggle to the 50amp setting in the app. You should, then, be charging at around 9.6kW, which is exactly what mine does.
I don’t have the option to toggle. The only amperage it is allowing is 40 Amps. A ChargePoint advisor is suppose to call me any minute now. To be continued.
I don’t have the option to toggle. The only amperage it is allowing is 40 Amps. A ChargePoint advisor is suppose to call me any minute now. To be continued.
Yes, they need to fix that. On mine, if I click on the 40amp setting, a toggle opens up and allows me to select 50amps. Their website says to set the amperage in that setting to whatever your breaker is, mine is 50. Not sure if they have a 60, without direct wiring, but if you can get yours to the 50amp setting your charging speed will increase to 9.6kW.....at least that is what happened when I changed the setting from 40amp (charging at 7.7kW) to 50amp to match my 50 amp breaker. Hope they can sort it out for you.
Can I increase the amperage of ChargePoint Home Flex after installation is complete?
Yes, you can upgrade the charging speed of ChargePoint Home Flex only if your electrician upgrades the charger’s circuit accordingly. See the equivalent FAQ in the ChargePoint HomeFlex Installation FAQs page. Otherwise, the station’s maximum output amperage will not change once amperage is set initially.
When I installed mine there wast a setting in the chargepoint app that let you set it at 40 or 50 amps. If you set it to 50 it doesn't really matter the car's charger only takes 9.5 KW which if Im not wrong is 40 amps. When I plug my car thats what I get. Note Im talking US vehicle.
Last edited by c4004matic; May 9, 2022 at 06:06 PM.
Your are correct, why can you change it back to 50 amps. That’s why I gave an example of the difference between both 40 and 50 amps. Your good, I would not spend any more money the difference is one hour of charge. Like I said at the beginning you can only get max 10 kwts
Last edited by Lawen4ment; May 9, 2022 at 06:13 PM.
SUCCESS: The ChargePoint advisor who was suppose to call me at 3:30PM Central never called. I waited for almost an hour and the I decided to call them again. The young lady I talked to set up the amperage to to from their end. Now the speed is 9.4-9.5 kWt. Unreal.
thanks again everyone for all your help on this issue and other issues. This forum is fantastic!
The guy I talked to last evening for an hour was obviously clueless.
Good enjoy the ride. So you will know if you plan to apply for the rebate of $250, this is part of the rebate. Like I mention before CP controls your charger amperage as part of the rebate.
Last edited by Lawen4ment; May 9, 2022 at 06:40 PM.
I have one other issue. I activated the ChargePoint account a few days ago as I reported. Now, when I go to activate Mercedes me Charge I get an error message saying “not registered.” But if touch that message it goes directly to ChargePoint account and everything seems to be in order. In the Mercedes me Connect it shows all the options are activated except for Charging which shows only 5 of 6 are activated. The dealer is clues as to why. They called Mercedes and they said they will get ahold of me within 24 hours. This was 2 hours ago. If you folks have a fix, once again, I would greatly appreciate it.
Last edited by AppleFan1; May 10, 2022 at 06:09 PM.
I have one other issue. I activated the ChargePoint account a few days ago as I reported. Now, when I go to activate Mercedes me Charge I get an error message saying “not registered.” But if touch that message it goes directly to ChargePoint account and everything seems to be in order. In the Mercedes me Connect it shows all the options are activated except for Charging which shows only 5 of 6 are activated. The dealer is clues as to why. They called Mercedes and they said they will get ahold of me within 24 hours. This was 2 hours ago. If you folks have a fix, once again, I would greatly appreciate it.
I have the same issue. Was told by local MB just to ignore it. They said for ChargePoint, ue the little credit card that we got from the dealer. And for EA, just plug the car in and it'll be automatically recognized by EA.
I haven't done any public charging so can't attest to what they told me
Can you here, this is your CP account with RIF card from Mercedes’ me connect. If everything it’s ok then your dealer is right. I used EA in Houston and when I went over 30 min it charger my credit card thru my chargepoint account but only for minutes that I was over.
Last edited by Lawen4ment; May 10, 2022 at 07:17 PM.
Can you here, this is your CP account with RIF card from Mercedes’ me connect. If everything it’s ok then your dealer is right. I used EA in Houston and when I went over 30 min it charger my credit card thru my chargepoint account but only for minutes that I was over.
I do see all of this in ChargePoint. I just changed the password but no luck. I still get “not registered” on the Mercedes me Charge when I try to activate it.
I do see all of this in ChargePoint. I just changed the password but no luck. I still get “not registered” on the Mercedes me Charge when I try to activate it.
Have you and your dealer set up your account in the Mercedes Me app? It's a several step process, after you set up the ChargePoint app, and then they are linked by Mercedes. Make sure the EQS is in your garage in Mercedes Me app. Then select Manage Services and Charging services. You then have to link to ChargePoint and share your data. Then hit "next" and they will send you a TAN code to log in. You create a new account, log in the serial number of your RFID card from Mercedes, and enter payment information. My dealer walked me through all this before delivery, and it is working for me. There is a document called Mercedes me Charge Service Activation Guide and Checklist dated December 2021, which details this with pictures. Your dealer should have this.
Have you and your dealer set up your account in the Mercedes Me app? It's a several step process, after you set up the ChargePoint app, and then they are linked by Mercedes. Make sure the EQS is in your garage in Mercedes Me app. Then select Manage Services and Charging services. You then have to link to ChargePoint and share your data. Then hit "next" and they will send you a TAN code to log in. You create a new account, log in the serial number of your RFID card from Mercedes, and enter payment information. My dealer walked me through all this before delivery, and it is working for me. There is a document called Mercedes me Charge Service Activation Guide and Checklist dated December 2021, which details this with pictures. Your dealer should have this.
We thought we did everything you mention but maybe not. I've spent several hours on this issue the past couple days. It's getting to be very annoying. I just got off the phone with Mercedes and they say there is some sort of problem with the activation process. I sent them a photo of the error message. The first advisor I talked to at about 7:30 PM told me that I need to go directly to the website "me.mercedes-benz.com", login, and follow the steps. I tried that at least 20 times and it seems to be on a do loop once I click on "save". It keeps saying "add more details." The second advisor that I just talked to told me they would get back to me. We'll see. I'm going to print your email and show it to the dealer tomorrow. Thanks my friend.
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