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  1. jwardell

    Camp Speaker Curiosity Teardown 🧰

    Thanks for posting. The Camp Speaker is clearly way overengineered for what it is, and makes me think they intended so much more for it. Thundercomm is a chinese Qualcomm offshoot that makes SOCs out of QC processors as well as development boards for QC. The TurboX C404 is made for a very, very...
  2. jwardell

    Vermonting Vermonters

    Hi folks, I'm starting to look at the Vermont DMV info for moving registration over, and there are so many confusing questions. It was asked before her, does anyone understand the truck and fuel classification? Can anyone see what weights and fuel rivian put on their DMV form? It seems to me...
  3. jwardell

    Got a Model 3 (Jun 2023 build) rental while my R1T in service…

    Thanks for pointing that out, I do very much miss the Model 3 pedal, Rivian has way too much dead zone and unresponsiveness.
  4. jwardell

    Got a Model 3 (Jun 2023 build) rental while my R1T in service…

    Interesting perspective, haven't driven the 3 since I traded my 2018 for the Rivian as well. I assume I will love the sportiness as I did before, but I bet it will feel much slower!
  5. jwardell

    R1T Limited Regen Warning: What's normal?

    This is the point. It's charge rating of the cells and chemistry. Most have a much higher C rating for discharge than charge. It's got nothing to do with temperature at normal temps. Rivian is just playing it safe and trying to track and limit how quickly energy goes into the cells, and is more...
  6. jwardell

    MA Glass replacement

    How large is the crack? Crack needs to be dollar-bill sized in length to cause any issue for inspection, and replacement is super easy in Mass if you need to But if it's just a chip don't even worry about it.
  7. jwardell

    120V Inverter Teardown

    Very interesting he mentions in the video he claims Rivian is running 3 in parallel, and he plans to run 2 in parallel. Not only do I wonder what is needed to run them in parallel, but also I wonder where he got that info, and perhaps was Rivian originally planning to have 3 for more power...
  8. jwardell

    120V Inverter Teardown

    Wow, thank you for tearing this open for us! First, this does not look like Rivian's design at all, it is all older tech inside. I couldn't see any branding on the PCB or elsewhere, could you? Do you have any better/closer photos of the PCB? It also appears to be smaller than the area...
  9. jwardell

    R1T Limited Regen Warning: What's normal?

    Sorry for the delay, here is new data, taken at 50% SOC. As you can see you get a few more seconds before it derates, but more significantly it seems to derate to 200A instead of 75A limit. Similar to when you're DC charging. I also included IGBT temps, which stay reasonable. Again if motors or...
  10. jwardell

    R1T Limited Regen Warning: What's normal?

    Put it this way, it's not motor or inverter temperatures, or your acceleration would be limited as well. If the inverter were too hot, it's generating heat no matter which way it's generating torque so both your regen and acceleration would have the same 70A limit, and that is most definitely...
  11. jwardell

    R1T Limited Regen Warning: What's normal?

    I logged going down my hill yesterday, left a room temp garage at 75%, there's a bit of uphill to the road so it's at 73.6% user SOC at the top and only rises to 74.6% after this ten minute downhill drive. Have a look at all the data, but to me it's just safe software limiting in the BMS, and...
  12. jwardell

    Certified Body Repair Prices Are Outrageous

    I got my corner repaired at Rivian service center today, with their local PDR guy doing the work. Was told he does this repair all the time so you know it will save a lot of time and trouble. Afterwards their "detailer" (probably whatever kid washes the cars) touched up the paint. Amazingly...
  13. jwardell

    Certified Body Repair Prices Are Outrageous

    Funny enough, Rich's video this week covers exactly this topic:
  14. jwardell

    R1T Limited Regen Warning: What's normal?

    I can read the data from the motors.
  15. jwardell

    Certified Body Repair Prices Are Outrageous

    Just a quote or did they actually repair it for that price? Seems way too sharp a fold to repair cheaply
  16. jwardell

    R1T Limited Regen Warning: What's normal?

    150 is plenty! The problem is they won't let you sustain it for much longer than a minute, and it will keep falling and hold to around 30kW. Which is still enough for a gentle slope but not for anyone who lives on a steep hill. I don't think it's inverter heat at all, but I will specifically...
  17. jwardell

    R1T Limited Regen Warning: What's normal?

    This is sadly normal. Of course it's much worse if your charge is in the top 20% or pack is cold, but even at room temp and 70% SOC I will only get about 1/3 down my hill till regen drops to about 30kW. It very much depends on how steep and sustained your hill is, in my case very steep for the...
  18. jwardell

    Certified Body Repair Prices Are Outrageous

    Talk to your Rivian Service Center and ask if they have a PDR person. I have a scratch and dent in the same spot, thanks to my valet, and I pointed it out to service and they said they have a local PDR guy that takes them out in that spot all the time, then touch it up. A few hours and a few...
  19. jwardell

    Confirmed: Newer production R1 only have a single 12v battery, but...

    Rivian did say they recently switched to one 12v battery. SURE WOULD BE NICE TO HAVE SOME WIRING DIAGRAMS, RIVIAN!


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