The Rivian R1T has demonstrated outstanding off-road capability as well as fantastic on-road behavior, at least as far as pickup trucks are concerned. Initial customer reports have been very positive and it seems Rivian’s biggest problem seems to be the inability to quickly ramp up production to meet orders.
However, we don’t really have a comprehensive DC fast charge review and analysis yet; until now, that is. We were able to get an R1T loan to do a 70 MPH InsideEVs highway range test (check out this week’s video and article) as well as record a full 0-100% DC fast charge session.
As usual, we then took the full footage and put it on paper, so we could plot the full fill curve and also explain how many miles per minute were added.
Rivian R1T pengisian fill curve
Rivian recently shipped an OTA update that increased the maximum amperage the R1T can receive from a DC fast charger from 450 amps to 500 amps. Our borrowers have an update and we were able to draw over 200 kW for a short time after the initial plug-in. However, it only held up 200 kW up to a 22% charge point, when we saw a pretty steep drop to around 170 kW.
Check out the InsideEVs Rivian R1T First Drive review
The R1T holds over 150 kW up to 45% charge state, and drops below 100 kW at 72%. Once the vehicle reaches 80%, charging power drops to 50 kW and undergoes a relatively smooth gradual decrease until the vehicle is fully charged.
The charging station generates 140 kWh, which means there’s about 15 kWh (12%) of charge loss during this charging session, which is pretty normal for a large battery EV that charges at high speed. The R1T has a 135 kWh battery, but that’s the gross capacity. Usable capacity sits at 125 kWh, as we’ll explain in our upcoming 70 mph highway test video and article.
Rivian R1T time to fill the chart
The entire charging session took one hour and thirty-five minutes. We divided the session into three 32-minute sections to show how many miles of coverage per minute were added in each third of the charging session.
While each EV charges differently, typically EVs have a similar charging profile where the initial third of a charging session adds back more energy than the other two thirds.
But we thought it was important to show how the damage looks on paper, and help explain why you really shouldn’t want to charge your EV on a DC fast charger past 80% or 85%. The charging speed gets so slow that unless you really need that extra 10% battery it’s not worth the wait.
The R1T charges fairly well and takes 42 minutes to charge from 10% to 80%. During that time, it added back the EPA rated 5.23 miles per minute average.
So check out the video and let us know what you think in the comments section below.