The 2 raw DC pins definitely aren't enough. The charger/connector and the vehicle need to speak the same language, and for safety they rely on continual handshake (image below for CCS pinout)
L1: Line 1, used for single-phase or three-phase AC power. L2: Line 2, used for three-phase AC power. L3: Line 3, used for three-phase AC power. N: Neutral, used to complete the circuit. PE: Protective Earth, used for grounding for safety. PP: Proximity Pilot, used for detecting the plug's insertion and removal status. CP: Control Pilot, used for communication between the charging station and the electric vehicle to coordinate the charging process. DC+: Direct Current positive, used for transmitting direct current. DC-: Direct Current negative, used for transmitting direct current. [image: CCS pinout image.jpg] *David Quattro* President On Tue, Jun 9, 2026 at 1:23 PM Maverick Brown via RE-wrenches < [email protected]> wrote: > I’m guessing if the car uses NACS or CCS connector, it will need outside > control / feedback to use raw PV power. > > This AI summary illustrates the connector with raw power and two pins for > negotiation. That is the key. “How much can you deliver?” “Please only > deliver” commands would need to go somewhere. > > There might be a battery free inverter that can negotiate this as it > tracks solar MPPT. > > nacs charging technical specifications > <https://www.google.com/search?q=nacs+charging+technical+specifications&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari#lfId=ChxjMe> > google.com > <https://www.google.com/search?q=nacs+charging+technical+specifications&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari#lfId=ChxjMe> > [image: favicon.ico] > <https://www.google.com/search?q=nacs+charging+technical+specifications&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari#lfId=ChxjMe> > <https://www.google.com/search?q=nacs+charging+technical+specifications&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari#lfId=ChxjMe> > > Many all-in-one inverters nowadays have smart ports. I wonder if they can > handle EV charging without batteries and I wonder what the car thinks about > when the smart port just turns off with no handshake. > > For instance, on the NCS charger, you press the button on the handle to > tell the car to stop charging (it unlocks), then you can unplug it. I’m > sure the car is OK if you just turned off the breaker visa-vie the smart > port turning off. I wonder. > > Thank you, > > Maverick > > Maverick Brown > Off-Grid Solar Commander since 2006 > Maverick Solar Enterprises, Inc. > • Solar Commander Remote Power > • SunFlow Systems Cathodic Protection > [email protected] > 512-460-9825 > > > > On Jun 9, 2026, at 3:01 PM, Dana Orzel via RE-wrenches < > [email protected]> wrote: > > > > Great Q Maverick this is a Toyota BE? [I think] I will have to check. I > would bet that it might, as the dealer say “void the Warranty”. > > > > _________________________________________________________ > > Dana Orzel GREAT SOLAR WORKS! > > C – 208.721.7003 E – [email protected] > > W - www. greatsolarworks.com www.solarwork.com > > *“Responsible Technologies for Responsible People since 1988!”* > > > <mime-attachment> > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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