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2024 GMC Hummer EV SUV Can Charge Other Hummers or EVs

Autoweek logo Autoweek 4/8/2021 Connor Hoffman
a close up of a car: The new electric SUV's optional Power Station generator, which has output up to 6.0 kW, will eventually be offered on the pickup Hummer, too. © Michael Aaron - Car and Driver The new electric SUV's optional Power Station generator, which has output up to 6.0 kW, will eventually be offered on the pickup Hummer, too.
  • The 2024 GMC Hummer EV SUV is available with a 6.0-kW Power Station generator.
  • It technically isn't a generator. Instead, in a reversal of the charging process, it takes DC energy from the battery, converts it back to AC, and sends it out the charge port to power accessories and even other electric vehicles.
  • This"generator" will also eventually be available on the Hummer EV pickup truck model.

We recently powered a house and charged a Ford Mustang Mach-E with the 2021 Ford F-150 Hybrid's new available ProPower Onboard generator. The 2024 GMC Hummer EV SUV will have a similar option, called the Power Station generator, although it technically isn't a generator. The SUV goes on sale in 2023, and GMC says the generator will eventually be available on the pickup truck model, which is out this fall.

2024 Hummer EV SUV rear © Michael Aaron - Car and Driver 2024 Hummer EV SUV rear

The new Hummers are electric, and GM says the necessary cord to let them charge other electric vehicles will be included on all Hummers equipped with the Power Station. So drivers of electric off-roaders will perhaps be rescued by a friendly Hummer. This is the future of the jump start.

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GMC hasn't specified the size of either model's battery, but it said the largest Ultium battery would hold 200.0 kWh. We think the SUV's will be about 167.0 kWh. In typical Level 1 (120 volt) or Level 2 (240 volt) charging, alternating current (AC) is converted to direct current (DC), and that energy is stored in the battery pack. The Power Station generator uses an inverter to convert the battery's DC energy back to AC so it can power what is plugged into its standard J1772 charging port.

Its output is up to 25 amps or 3.0 kW to power 120-volt items, or up to 6.0 kW at 240 volts, although the 240-volt power can be used only to charge other EVs. This is, for reference, just shy of the 7.2-kW max output of the ChargePoint charging equipment we use at our Ann Arbor, Michigan, headquarters. The F-150's generator, which uses its internal-combustion engine to make power, is offered in three variants, outputting 2.0, 2.4, or 7.2 kW with only the most capable one offering 240-volt output.

When asked if the upcoming electric Silverado pickup would offer the Power Station generator as well, Chevy only said that the new truck is"purpose-built from the ground up as an electric full-size pickup truck and will be competitive in the marketplace." Since it's the same battery platform, it's certainly possible.


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