Essentially, you need to pretend to be a complete DCFC and then "charge" with a negative current. Cor.
On Fri, Jun 28, 2024 at 10:09 AM (-Phil-) via EV <ev@lists.evdl.org> wrote: > > I don't yet have any instructions, and it's very complex. You have to > build hardware to generate and sense the 1khz 5% PWM pilot signal then have > a relay to switch the communications over to single-wire CAN, and then > negotiate with the car's BMS over CAN. Once you have that working you have > to voltage-match the battery voltage on the port within a few volts before > it will honor your request to close the DC fast charge contactors. On top > of that, once you get all that working, you are left with pretty much a > direct DC connection to the pack which can easily sink thousands of amps if > something goes wrong, so you have to really know what you are doing. > > Unfortunately, I'm not prepared to write up a how-to for this reason. > Someone will either get killed, or damage their car, or both. Then > there's still the problem of the warranty! > > On Fri, Jun 28, 2024 at 10:02 AM Barry Oppenheim via EV <ev@lists.evdl.org> > wrote: > > > Do you mind sharing the instructions or a link to the instructions? > > > > Thanks, > > Barry Oppenheim > > > > On Fri, Jun 28, 2024 at 12:56 PM (-Phil-) via EV <ev@lists.evdl.org> > > wrote: > > > > > I recently figured out a safe way to export power from any Tesla's charge > > > port. I got HV DC power export working from the port at around 6kW, > > which > > > could then be fed into an inverter for AC power. > > > > > > However, Tesla still instantly voids your warranty if you do this. I > > have > > > a salvage Tesla, so it doesn't matter to me, but it really dashes any > > hope > > > of offering a product. > > > > > > Tesla has always had this clause to void your warranty if "Using the > > > vehicle as a stationary power source". (See: > > > > > > > > https://digitalassets.tesla.com/tesla-contents/image/upload/tesla-new-vehicle-limited-warranty-en-us.pdf > > > ) > > > > > > I decided to see if they modified the warranty for the Cybertruck, since > > it > > > has the AC power export feature built-in, and here's what they changed > > that > > > clause to: (only for Cybertruck) "Using the vehicle as a permanent, > > > stationary or long-term power source or backup". So Technically any > > > "stationary" use still voids it! They also don't bother to define what > > > "long-term" is. (See: > > > > > > > > https://digitalassets.tesla.com/tesla-contents/image/upload/tesla-cybertruck-new-vehicle-limited-warranty-en-us.pdf > > > ) > > > > > > I'm not a lawyer, but I don't think they can void your warranty unless > > they > > > can prove your actions did the damage you are claiming under warranty > > > coverage. (Per the Magnuson Moss Warranty Act, see: > > > > > > > > https://www.ftc.gov/legal-library/browse/statutes/magnuson-moss-warranty-federal-trade-commission-improvements-act > > > ) > > > Though that probably means they tell you to kick rocks and you have to > > > hire an attorney to fight them. I'd be interested in opinions from any > > > Attorneys on the list? > > > -------------- next part -------------- > > > An HTML attachment was scrubbed... > > > URL: < > > > > > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240628/e3cf1c06/attachment.htm > > > > > > > _______________________________________________ > > > Address messages to ev@lists.evdl.org > > > No other addresses in TO and CC fields > > > HELP: http://www.evdl.org/help/ > > > > > > > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: < > > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240628/e376d9be/attachment.htm > > > > > _______________________________________________ > > Address messages to ev@lists.evdl.org > > No other addresses in TO and CC fields > > HELP: http://www.evdl.org/help/ > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240628/e7fed405/attachment.htm> > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
