Yeah, the PCS feed (under the rear seat, passenger-side) on 3/Y can supply 200A no sweat, but just be sure you don't have large capacitive loads attached without some sort of isolation or precharge. (Or car will not be able to wake properly)
The PCS (Power Conversion System) incorporates the HV->12V DC-DC converter, and is also used to precharge the HV from 12v when the car wakes up. VCFront (the front main vehicle controller) passes power from the 12v battery back to the PCS for this startup, but doesn't like any large unexpected loads when running "backwards" like this. Once the contactors close and the PCS reverses direction, it's safe to load it. On Sun, Mar 21, 2021 at 11:06 AM Willie via EV <ev@lists.evdl.org> wrote: > > > On 3/21/21 12:58 PM, (-Phil-) via EV wrote: > > I don't advise use of an EV battery pack for moving energy around on a > > daily basis, you will not only void your warranty, but you will suffer > > early degradation, on top of not having the use of your car while it's > > being used to power shift. > > It was mostly a "flight of fancy". I recognize the battery cost > problem. OTOH, batteries are getting longer lives. > > > > > For occasional back up in an emergency, it's fine, and nobody is going to > > try to void your warranty. Though if you attempt it on a Tesla, know > > EXACTLY what you are doing and don't post it all over social media then > > brick your car. (Owner got his warranty voided AND had to pay Tesla to > fix > > his car) On newer Teslas you WILL have problems if you attach loads > > directly to the 12v battery! > > On my Model 3, I discovered that. As you likely know, there is an > upstream tap point (under rear seat), that can supply more abundant 12v > power. I did my experimenting before "dog" and "camp" modes so I don't > know how that impacts things. Others have complained of excessive > vampire loads when trying to use 12v power externally. > > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210321/2a61d62c/attachment.html> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
