openinverter forum

Hello everyone!

I'm currently focused on developing DC fast chargers and I'm conducting a round of compatibility testing.
I'd like to invite EV owners to help me test with real vehicles.

At the moment, I have DC chargers available with the following power ratings:

7kW (small DC charger)

20kW (perfect for fast-charging small vehicles)

30kW (medium-power fast charger)

The goal is to verify charging compatibility, performance, and communication protocols across different brands and vehicle models.
If any issues are found during testing, I will actively optimize and improve the system to ensure better stability and broader compatibility.

If you're willing to support the testing, I sincerely offer half-price for the chargers, along with long-term technical support.
EV owners, dealerships, fleets, or even hobbyists are all welcome!
The testing process is simple, safe for your vehicles, and I will fully assist throughout the entire procedure.

If you're interested, feel free to message me for more details.
Thank you all for your support!

It'd be helpful to know where are you located.

What is the half price of the 7kW? Is this three-phase euro 230/400V?

P.S.Mangelsdorf wrote: ↑Mon Apr 28, 2025 11:45 am It'd be helpful to know where are you located.

Thanks for replying I am from China

uhi22 wrote: ↑Mon Apr 28, 2025 2:40 pm What is the half price of the 7kW? Is this three-phase euro 230/400V?

7kw DC uses a single-phase power module

I would be interested

If there is a way to get a 20-30kW unit working with DC input (~350VDC) I'm happy to test!

I have 2 unusuall vehicles
emotorcycles:

- energica ss9+ 2020 it has 80S battery (range 250-336VDC)
- harley livewire 2020 it has 70S battery (range 230-294VDC)

I have 20kW DC charger but I am willing to test 7kW if you have one - it is only 1 phase or posible to make it 3phase?

I am happy to test 20/30kw dc ccs charger. Do you need a configured high current DC battery system that your DC-DC charger will operator or is it only AC as input? If so what volt range do you need to be and I will check and possibly adapt to make work.

Its great that you have commercial level experience of DC charging. Are you doing this as a pre Charin test? Makes sense as you can validate on wider use cases.

I would rather get a product that is open inverter aware than any DC-DC hardware stack from alibaba..