Unlock bidirectional charging (V2L)

  • In the Chinese version, the smart #1 can also release energy again. Just as you know it from the Hyundai Ioniq 5 and the Kia EV6. Using a type 2 plug in the charging socket, which then has a Schuko socket. Then you can plug in whatever you want with up to 16 A on one phase with AC 230 V.

    The European version of the smart #1 doesn't seem to get that. At least it isn't mentioned anywhere anymore (?) and I couldn't find it anywhere in the press release either.

    The hardware, i.e. the charger, should be the same in Europe and Asia. Both the 7.2 kW charger and the 22 kW charger. I can hardly imagine that there will be two variants.

    Now the question is: Can it be unlocked? I've made this thread here and I'm curious to see if anything else comes up. Maybe one of you has an idea why one -apparently deliberately- does without this feature in Europa.

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • Okay. Today I did some research on how Hyundai and the Kia solved the problem. They have totally simple type 2 adapters, which you can be build yourself. If you want that.

    In terms of content, they simply have a type 2 plug, which has a 75 ohm resistor between PE and PP. Based on the resistance, the car recognizes that it is not a normal type 2 connector, but the V2L adapter. And if you also connect 75 ohms between CP and PE, then the car started the V2L process and supplies voltage to the socket.

    That's how it electrically works:

    Source 1 & Source 2

    You can also build it yourself easily. I hope that smart will do something similar. Build it yourself would also make it possible, for example, to put a power strip on it. So, for example, you can operate three small things at the same time. Instead of just one. Incidentally, in the Chinese press releases, smart speaks of 3.3 kW. However, voltage and current are not named.

    Besides that:

    What kind of voltage and frequency the car outputs is not controlled with the resistors or anything. That's determend tricly by the car's region. So while a German car does 50 Hz with 230 V, an American car provides 120 V and 60 Hz.

    There is also a circuit board in the adapter from Kia and Hyundai. But it is only responsible for the indicator LED on the adapter. So not mandatory. It is often left out when DIY building an adapter, since the vehicle inside shows anyway that it is in V2L mode.

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • And here we have how it seems to work on the MG4.

    So a different resistance and even simpler than the Ioniq 5. I have to see if a reader from China can tell me the resistance of the smart adapter between PE and CP, like PP and PE. :/

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • I still have a loose type 2 plug here. I have now ordered an adjustable resistor and switch. Maybe I get a reaction from the smart when I play around with the resistance.

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • Between the CC and Ground there should be 2000Ohm or 2kOhm to let the car know it is a V2L cable

    Do you know that specific for the #1? :love:

    but in chinese version there is an option in the infotainment to enable the V2L

    Yea, I know that. I'm betting on smart being lazy and not removing that in the European version. :saint:

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • Okay, I've been playing around a bit with 2 k ohm.

    Well, it was worth a try. I guess you ment 2k ohm between CP and PE, while PP is connected to PE. As shown in the first test I did. Right?

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • At some point I'll get it figured out. I definitely find it exciting that there is now a V2L adapter from smart for the #1 with CCS. Customer in Malaysia are getting them with their cars.

    Let's see if I can get my hands on one somehow. :/

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • Hmmmmm. The original adapter probably doesn't come directly from smart China, but is cobbled together somewhere in Malaysia. There is no item number, just the name of the Schuko socket on the front. It probably has a button at the bottom to start the charging process. But I'm still not sure how to get hold of one. :/ :(

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • Just note: It's single phase and a maximum of 3,3 kW

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

  • 3,3kW is enough : 3300W/230V = 14,35 A thats almost a full group in the cabinet.

    When you have a long blackout its enough to power the pump and electronics in the gas heating system, all the lights in the house (led) and the wifirouter.

    Also my gasheater will produce warm water for the shower. A small watercooker ( like 1000W) will als work so you can make soup and coffee or tea. What about a microwave? ( 800-900 Watts). With a full battery you will survive easily 2 days of blackout. So i'm really interested in the powerplug....

    <today my dealer replied he is on holiday so i couldn't order my new car ;( >

  • Hmmmmm. The original adapter probably doesn't come directly from smart China, but is cobbled together somewhere in Malaysia. There is no item number, just the name of the Schuko socket on the front. It probably has a button at the bottom to start the charging process. But I'm still not sure how to get hold of one. :/ :(

    did you see there's CE written on it!?!?

  • did you see there's CE written on it!?!?

    The only thing I've got are these photos. But no, I didn't.

    smart BRABUS #1 in gelb, 04/2023; > 20.000 km
    smart fortwo Coupé 451er ED 3,7 kW-Lader, 05/2013; > 285.000km (bei 250.000 km 22 kW nachgerüstet)
    smart fortwo Cabrio 453er EQ 22 kW-Lader, 04/2021 - 08/2023; 42.000 km
    smart fortwo Coupé 453er EQ 22 kW-Lader, 05/2018 - 05/2021; 109.000km

    "Aus Gaspedal wird Spaßpedal"
    - smart

Participate now!

Don’t have an account yet? Register yourself now and be a part of our community!

Do you like smart EMOTION, maybe saved time and money with it?

Then support the site with a membership and get exclusive rights.

You can find out more about this here.