Hello Mark, My Model 3 does the same thing. I am told that it is being done to condition the batteries. I notice on days when the temperature is above 90 degrees and after a bit of time, the pump(s) will turn on to cool the pack. The same thing happens when temps go below freezing(?) as the batteries should be kept warmer. Also, when approaching a Supercharger, the pack will go into a preconditioning mode so recharging goes faster.
>From what I have read, it's all part of a positive battery management program to prolong the life of the pack and to keep the pack healthy. Is it wasteful? Yes/no, it depends. Peter On Wed, Mar 24, 2021 at 10:21 PM mark hanson via EV <ev@lists.evdl.org> wrote: > > Hi Folks, > > > > My Tesla-Y is constantly humming (fans/pumps?) when parked in the garage for > hours. I heard it loses 1% daily, seems wasteful to me. Is there a way to > turn power off to things when parked? My Chevy Bolt and Nissan Leaf are > silent when parked. > > > > Also Dave put my trailer wiring for the Bolt EV on www.EVDL.org/lib/mh . I > dug into the Tesla-Y wire harness tonight behind tail lights - so I'll have > one for the Tesla-Y soon using similar diodes. Must have LEDs on your > trailer. > > > > Have a renewable energy day, > > > > Mark > > > > Mark E. Hanson > > 184 Vista Lane > > Fincastle, VA 24090 > > 540-473-1248 phone & FAX, 540-816-0812 cell > > REEVA: community service RE & EV project club > > Website: www.REEVAdiy.org (See Project Gallery) > > UL Certified PV Installer > > My RE&EV Circuits: www.EVDL.org/lib/mh > > REEVA Demo: <http://youtu.be/4kqWn2H-rA0> http://youtu.be/4kqWn2H-rA0 > > > <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd89 > 75b8d/signature> Fincastle Solar Weather Station > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210324/c5c639b5/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 _______________________________________________ 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
