The Ultium battery pack in the 2022 GMC Hummer EV weighs 2,923 pounds. That’s almost 600 pounds more than what a current Mazda Miata weighs. All of that weight is before the rest of the all-electric Hummer gets assembled. All told, the Hummer EV has a total curb weight of 9,063 pounds.
Sure, the previous generation Hummer was large and hefty, too, but for reference the old Hummer H2 SUT weighed in at 6,614 pounds. So, it came as a shock to see these numbers that were filed with the EPA for the Hummer EV 1. Note, as of now these numbers only relate to this first edition Hummer and other future trims and iterations may have different numbers due to packaging and equipment.
If you like to do your own fact checking, you can read the entire filing with the EPA, but fair warning it’s not very exciting.
Initially, GM was throwing around a range number of 350 miles for the Hummer, but after the EPA filing, the number is 329 miles. So, that big battery seems to have more range output than the Rivian R1T with an estimated range of 314 miles and is better than the proclaimed range (not yet announced officially) of the F-150 Lightning at 300 miles.
The 212.7 kWh system for the Hummer has more energy capacity than the Rivian R1T with 128.9-kWh or the F-150 Lightning with a 131.0-kWh Extended Range battery. As such, the Hummer battery contains roughly 60% more energy (212.7 divided by 131) than the Lightning battery.
Of the three electric trucks, the Hummer is by far the heaviest coming in at 9,063 pounds, and the Lightning is the lightest at 6,500 pounds. The battery in the Lightning weighs approximately 1,800 pounds (not confirmed officially). In contrast, the Rivian R1T has a curb weight of 6,949 pounds, and we couldn’t get confirmation from Rivian on how much its battery weighs.
For comparison, the big, bad Ram TRX has a curb weight of 6,396 pounds, so all three of these electric trucks tip the scales more than the Ram TRX.
As an interesting aside, any vehicle with a gross vehicle weight rating (GVWR) above 8,500 pounds does not have to report MPGe on the window sticker. And a GM spokesperson recently told Car and Driver that it won’t be displaying MPGe on the Hummer EV.
The GVWR for the three trucks are:
Trying to make heads and tails of range, energy capacity and kilowatts per hour can be confounding to the average consumer. Admittedly it’s befuddling to us who cover the industry, too. But when you’re thinking about how fast something charges, the thing you need to remember is this: There is a difference between DC fast charging stations and ultra fast charging stations, and the higher the output from the charger, the faster the battery will charge. The DC fast chargers are typically around 50 kW and the ultrafast stations are around 350 kW.
With all that in mind, automotive journalist and EV expert John Voelcker explains: “The Hummer is capable of charging at a faster rate because GM has designed its 400-volt Ultium pack with a series/parallel switch that lets it charge at 800 volts under the right circumstances.”
Voelker said what this means to the consumer is that the Hummer EV can use the fastest charging stations that operate at up to 350 kW.
While we don’t have a lot of specific charge time numbers for the Hummer EV just yet, but we do know if using an ultrafast charger, you can get about 100 miles of range in 10 minutes. Dusting off our journalistic math skills, that means you should be able to go from 0% to 80% of a charge in about 25 minutes.
In comparison, Ford’s specs for the Lightning show 400-volt charging at up to 150 kW, which means it will take the Lightning around 40 minutes to get up to an 80% charge on a fast charger. Rivian’s battery is designed for fast charging with charging rates of up to 160 kW. This enables approximately 200 miles of range to be added in 30 minutes of charging.
There’s no clear right or wrong way to power up today’s electric trucks. A bigger battery means theoretically better range. But that weight can detract from the range too. But conversely having that bigger battery means it charges faster. So, there’s a give and take.
It still seems strange to shake the old image of the Hummer, that big, hulking gas-guzzling SUV. Now it doesn’t guzzle gas at all, yet still keeps its hulking proportions. It’s bigger than a Ram TRX. That’s hard to fathom. It has more torque and total horsepower than a Ram TRX, too. That’s even harder to fathom.
That’s what an electric vehicle future looks like (torque, torque and more torque). Embrace it.
Managing Editor Jill Ciminillo contributed to this report.