Ok, thanks that is it then. We need a DC to DC charger between the all-in-one device and the car. That DC to DC charger needs maybe to be specific for the charge-profile of the car.I would not want to do that with the system you have pictured.
I don’t think the charger you have listed would provide the exact voltages and charge profile for the car. If you had your car hooked up and it worked, how do you feel about the car battery running the house…
I would think differently if it was eight batteries six volts each in series for 48 volts and this was an electric Polaris side by side. I would rather include a dc to dc converter to charge the Polaris off instead of a being the ,aim battery.
EXACTLY!!!!Cutting out the DC->AC->DC double conversion loss would be amazing, right?
That is insane right?!? The amount of resources that are needed there. And in theory you would just need a DC to DC charger with MPPT. (A bit like the concept of the Renogy DC-DC chargers with MPPT, but with a selectable output profile for the different EVs)I plan on doing Solar PV DC -> MPPT -> LiFePO4 battery pack -> AC inverter -> vehicle AC charger -> traction battery.
Well I am looking into the Setec Power and the native Nissan PCS solution but this last one is really hard to find info online.It's unfortunate for now but there is not a safe alternate way for now that I am aware of.
Indeed, insane. Practically reminds me of pumped hydro efficiency.. Wish it were possible to just connect a 150-200W panel to a boost DC-DC MPPT converter direct to traction battery…… probably arriving in the next 5 years.That is insane right?!? The amount of resources that are needed there. And in theory you would just need a DC to DC charger with MPPT. (A bit like the concept of the Renogy DC-DC chargers with MPPT, but with a selectable output profile for the different EVs)
But I understand now that there is nothing like that on the market.
While I agree that high voltage should be respected - 400V is nothing special. When you get closer 1000V - like 800V (Porsche Tycane) then insulation requirements go up.Cutting out the DC->AC->DC double conversion loss would be amazing, right?
You need to be VERY careful with the High Voltage Traction Battery. I suggest you not attempt any of this unless you have long talks with either the manufacturer or people who have hacked on the vehicle you want to convert. You could easily be harmed by the high voltage potential of the traction battery, or cause the vehicle's other systems to dangerously malfunction in a way that is hard to anticipate. Not fearmongering, but seriously this is very intense engineering required for safety. HVDC plugs have big insulation requirements and even sheathing to prevent arcing.. be careful please!
Good luck, be safe, VIPV needs earnest engineering effort there are going to be some interesting vehicles in the next 10 years..
The trick is - many DC to DC chargers are reality are DC-AC-DC internally. When the voltage level are not perfectly matching.Do we always need to invert solar DC to AC in order to charge an EV?
Since EVs take DC charging, isn't there a way to wire DC directly from the solar into EVs battery?