I am basing my statement on what I have learned about Tesla's implementation. The "emergency cord" supplied with a Roadster is simply a cable with NEMA 5-15P GFCI on one end, and the Tesla proprietary charge port connector (instead of J1772 plug) on the other end. On "teslamotorsclub.com" there is talk about the GFCI being too sensitive, causing tripping (and resultant abort of the charging process), and it has been suggested, and some owners have done so, to replace the GFCI NEMA5-15P with a regular non-GFCI version. There simply can't be any other "intelligence" (control signal) in that connector. Yes, that's unconfirmed, but a pretty reasonable bet (if I were a betting man). Here's a link to Tesla's product: http://shop.teslamotors.com/collections ... nector-120planet4ever wrote:I don't think your level 1 pilot statement can be right. Level 1 goes through the same connector on the Leaf as level 2, and I am quite sure that level 1 charging uses exactly the same kind of handshaking as level 2; it is just that the car and the EVSE agree on a different voltage and amperage. Yes, I said EVSE. The 120V "emergency cord" is not just a cord. It has an EVSE built into it where it plugs into the wall.LEAFer wrote:At Level2 charging you need the pilot signal, not just the "juice". I could be wrong ... may be the LEAF can be fooled to think it is doing Level 1 charging (where no pilot signal is needed) but use the 240volts you supply anyway.
And here's the TMC topic for your reading pleasure: http://www.teslamotorsclub.com/showthread.php?t=2875
Edit: This forum is about the LEAF ... the technique used could naturally be different ... so ... we would like to know: Is the "emergency cord" a "real" EVSE, or just a "dumb" 120V/12A "extension cord" ?