CarlM408
Well-Known Member
- First Name
- Carl
- Joined
- Jun 29, 2024
- Threads
- 7
- Messages
- 107
- Reaction score
- 250
- Location
- Si Valley, CA
- Vehicles
- 2023 R1T DM Perf Max
- Thread starter
- #1
Back in April we rolled out of Si Valley to Texas for the total solar eclipse in our R1T DM Perf Max AT, with a few days in Moab on the way back for fun, and we logged every step with Electrafi...are you wishing for a geeky spreadsheet_with_a_webcam video analyzing every charge and discharge across a multi-day epic roadtrip?? Well today is your day:
Just the Facts for the TLDR crowd:
4520.1 miles driven
2,362.01 kWh used when driving
225.72 miles longest driving segment
3:28 duration of longest driving segment
90.1% SOC used in longest driving segment
2:10 average time between charges on Roadtrip days
140 average miles between charges on Roadtrip days
56% average SOC used between charges on Roadtrip days
40.55 minutes average charge time on Roadtrip days
18% Roadtrip time spent charging
66.6% overall EPA vs. Real range efficiency when driving
2589.6 kWh of electrons added from charging
$904.56 total charging cost (Tesla/EA/RAN)
$.35 average cost per kwh
$.38 average cost per kwh when paying (excluding free L1/L2)
A couple more points that didn't make the cut in the video...on the first day of the trip we pushed the SOC below 5% and had a battery system fault put the truck into safe mode, wouldn't charge faster than 10kw until we did a full reboot. A call to service reassured us the truck was safe to drive, and we made an emergency visit to the Austin TX Rivian service center to have that confirmed. This was an additional reason we were being quite conservative, arriving at chargers with 15-25% SOC, because we were treating the bottom 10% as an absolute safety buffer. Leveraging another 10% SOC would have cut a good ~5 minutes off our average stop time, but it is what it is...
One of the true keys that made the trip so stress free is the Rivian's ability to estimate the spare range when reaching a destination accurately. We could drive 10 over the limit and have that number slowly decrease, or drive 5 over the limit and have it slowly increase, no matter what the elevation change or changing speed limits. At one charge stop (the legendary Green River EA station!) we were chatting with a couple in a BMW i4 who had also driven from Oregon to Texas for the eclipse, and their GOM was absolutely all over the place making for much anxiety and much more rigorous and ridged route planning with ABRP.
The biggest Rivian inaccuracies OTOH, was charging time and time zones handling. Rivian is pretty optimistic about how long it'll take to charge to a given SOC, and when you have a 700+ mile day with many charging stops those errors all stack up into a significant estimated arrival time miss. Also, the navigation has no concept of time zones, it just shows them all with the current time zone you're in. So while the total driving duration of the day may be reasonably correct, the arrival time at way points along the route will be off by an hour if your route spans time zones. We've mentioned these two things and many others to Wassym and he was taking notes, so fingers crossed we see improvements in future software updates.
Lastly for fun here's a more focused look on the Moab part of our journey, plotting out what our truck's true off-road trail range is:
Just the Facts for the TLDR crowd:
4520.1 miles driven
2,362.01 kWh used when driving
225.72 miles longest driving segment
3:28 duration of longest driving segment
90.1% SOC used in longest driving segment
2:10 average time between charges on Roadtrip days
140 average miles between charges on Roadtrip days
56% average SOC used between charges on Roadtrip days
40.55 minutes average charge time on Roadtrip days
18% Roadtrip time spent charging
66.6% overall EPA vs. Real range efficiency when driving
2589.6 kWh of electrons added from charging
$904.56 total charging cost (Tesla/EA/RAN)
$.35 average cost per kwh
$.38 average cost per kwh when paying (excluding free L1/L2)
A couple more points that didn't make the cut in the video...on the first day of the trip we pushed the SOC below 5% and had a battery system fault put the truck into safe mode, wouldn't charge faster than 10kw until we did a full reboot. A call to service reassured us the truck was safe to drive, and we made an emergency visit to the Austin TX Rivian service center to have that confirmed. This was an additional reason we were being quite conservative, arriving at chargers with 15-25% SOC, because we were treating the bottom 10% as an absolute safety buffer. Leveraging another 10% SOC would have cut a good ~5 minutes off our average stop time, but it is what it is...
One of the true keys that made the trip so stress free is the Rivian's ability to estimate the spare range when reaching a destination accurately. We could drive 10 over the limit and have that number slowly decrease, or drive 5 over the limit and have it slowly increase, no matter what the elevation change or changing speed limits. At one charge stop (the legendary Green River EA station!) we were chatting with a couple in a BMW i4 who had also driven from Oregon to Texas for the eclipse, and their GOM was absolutely all over the place making for much anxiety and much more rigorous and ridged route planning with ABRP.
The biggest Rivian inaccuracies OTOH, was charging time and time zones handling. Rivian is pretty optimistic about how long it'll take to charge to a given SOC, and when you have a 700+ mile day with many charging stops those errors all stack up into a significant estimated arrival time miss. Also, the navigation has no concept of time zones, it just shows them all with the current time zone you're in. So while the total driving duration of the day may be reasonably correct, the arrival time at way points along the route will be off by an hour if your route spans time zones. We've mentioned these two things and many others to Wassym and he was taking notes, so fingers crossed we see improvements in future software updates.
Lastly for fun here's a more focused look on the Moab part of our journey, plotting out what our truck's true off-road trail range is:
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