Comparing Rivian’s R1T Electric Pick Up Truck and GM's Silverado EV: Charging Performance, Battery Density and More
Rivian's R1T is a full-size electric pickup truck that has been making waves in the EV industry. Its latest road trip charging test was a little disappointing, with only 82 kWh delivered to the vehicle versus 73 kWh available for use. However, it's important to note that this could be due to many factors like keeping the car running inside (heat, etc.), effect of keeping the pack at an ideal temperature for charging, charging net losses, etc.
GM's Silverado EV also offers impressive specs when it comes to battery density and cooling technology. It is yet to be seen how well these claims hold up once the vehicle is out on the market. GM's trucks are taking charge at around 800 volts while Rivian's R1T currently operates at 450 volts. Rivian has a patent for a switch that allows them to switch between a parallel and series connection somewhere in the battery pack. This allows them to take a charge at higher voltage levels without compromising reliability over time.
The 9 kWh difference between what is delivered to the vehicle and what is available for use can largely be attributed to charging losses or about 8%. On hot days, the cooling compressor runs full blast to prevent battery overheating which increases this gap even further. However, with snow on the ground, the standard fan can keep the battery below 95F without needing additional help from the compressor.
Overall, it appears that both Rivian and GM are doing their best to make sure their vehicles offer reliable performance when it comes to battery capacity and charging speed. Although Rivian's current charging rate may not be as fast as some had hoped, they have plenty of time before 2023 rolls around to improve upon their tech and software so that quicker charging becomes possible.
How much quicker charge can I expect from my Rivian R1S?
Hopefully by the time your R1S is available in the first half of 2023, they've updated the tech/software to enable quicker charging.
What could explain the difference between 82 delivered and 73 KW in the vehicle?
The 9 KW difference is likely due to charging losses, or about 8%. Factors such as keeping the car running inside (heat, etc), effect of keeping the pack at an ideal temperature for charging, and charging net losses may also contribute.
How does GM's Silverado EV compare to other BEV trucks?
GM's Silverado EV has specs that beat out any other BEV truck at this point. Battery density and cooling are key factors in determining which BEV truck will win the race.
Is it possible that the station was limited?
It is possible that the station was limited. You may want to wait until GM's claims are proven true before getting your hopes up.
What is the difference between GM's 800 volts and Rivian's 450 volts?
GM's taking a charge at ~800 volts, while R1T is currently ~450 volts. GM trucks have 400-volt architecture on the inside, but switch between a parallel and series connection somewhere in the battery pack to be able to take a charge at 800v. Rivian has a patent for a switch like that actually.
What does the Rivian meter state regarding power into the battery?
The Rivian meter states that 73 KW is in the battery and available for use. The charger needs to sell more power to get that amount into the battery pack. With snow on the ground, the standard fan can keep the battery below 95F, without needing the compressor to run the A/C system to cool the battery water.
What is the best way to charge my R1T on a road trip?
The best way to charge your R1T on a road trip is to plan ahead and find charging stations along your route. You can use apps like PlugShare or ChargeHub to locate compatible charging stations. It's also important to make sure you have the right adapter for the type of charger you'll be using.
What are some tips for charging my R1T while on the road?
Some tips for charging your R1T while on the road include: planning ahead, finding compatible charging stations, having the right adapter, and keeping an eye on the temperature of the battery pack. Additionally, it's important to make sure that you're not overcharging your battery, as this can cause damage. Finally, if you're in an area with extreme temperatures, consider using a portable heater/cooler to keep your battery at an optimal temperature.