There’s no lengthy introduction here, or beating around the proverbial bush. You need a level 2 home charger if you have a GMC Hummer EV or plan on getting one.
The 2022 GMC Hummer EV marks the return of the Hummer nameplate, and we’re quite fond of the new truck. There’s even an SUV version coming soon, for those who want more closed cargo space. It’s a big rig, and it has the performance of a sports car.
But to deliver that power in electric form, the Hummer EV needs a big battery. GMC claims that the battery on the Hummer EV is 205 kWh. Some estimates have it even higher.
Level 1 charging, or just regular home AC charging on a 120-volt circuit is a slow process for any electric vehicle. But with some EVs, it is manageable.
The Mini Cooper S E, for example, with an approximate 33 kWh battery pack, you could completely charge that car in around 16 hours or so at 2 kW.
To charge a Hummer EV’s 205 kWh battery pack, it’d take 4.2 days. That’s assuming everything works right and there are no dips. We wouldn’t be surprised if it’d take a week.
A 32 amp home charger from a company like JuiceBox would cut that time significantly. GMC claims it’d be about 24 hours to fully charge.
An 11.5 kW charger, which runs on a 60 amp circuit, should cut the time to about 16.5 hours. These are GMC’s estimates so your mileage might vary.
The reality is, with the size of the Hummer’s battery pack, the amount of power to move that truck a mile, and low-powered nature of a regular wall plug, it should only really be used in emergencies or for topping off after relatively short trips.
Otherwise, you’re going to want to the upgrade.