What EV Charger Do You Need for a 2024 GMC Hummer EV Pickup?
You need an 80 amp Level 2 home charging setup to feed this truck at its maximum AC rate. The massive 199.1 kWh battery pack demands heavy power delivery to refill overnight. A smaller charger works, but it takes much longer. Your truck uses a J1772 connector.
The numbers
| Maximum AC charging rate | 19.2 kW (80 A) |
|---|---|
| Charger size to buy | 80 A |
| Circuit breaker required | 100 A |
| Outlet / connection | hardwired only |
| Charge port | J1772 |
| Full charge on Level 2 | about 10.4 hours |
| Range added per hour (Level 2) | about 30 miles |
| Full charge on a 120 V outlet | about 138 hours |
| Range added per hour (120 V) | about 2.3 miles |
| EPA rated range | 314 miles |
| Energy for a full charge | about 199.1 kWh at the wall |
Why 80 amps and not more
The onboard charger handles up to 80 amps at 19.2 kW. Feeding it anything less slows down the refill rate. A smaller unit will not harm the vehicle, but it leaves capacity on the table. You will see 30 miles of range per hour of charging at the maximum rate. Hooking up an 80 amp supply gets the job done in 10.4 hours.
What the install involves
This setup requires a 100 amp circuit breaker. You cannot use a standard wall outlet because this unit is hardwired only. Hire a licensed electrician for this job. Heavy gauge copper wiring and a dedicated panel slot are mandatory for safe operation at this current draw.
Chargers that match this car
The first unit matches your car's full 80 A. The others are slightly slower but cost less.
One of the few home units that can feed an 80 A car. Needs a 100 A circuit.
Adjustable from 16 A to 50 A in the app, which helps if your panel is tight.
Energy monitoring built in. Hardwire it for the full 48 A.
Worth having as well
Common questions
- Can I plug this into a regular wall outlet?
- No. Level 1 charging from a standard household outlet takes 138 hours for a full battery.
- What connector does the truck use?
- It uses a J1772 connector. Every non-Tesla EV sold in North America through 2024 uses this connector for AC Level 2 charging.
- How many miles of range do I get per hour?
- You get 30 miles of range per hour on Level 2. Level 1 gives you 2.3 miles per hour.
- What is the EPA rated charge time?
- The EPA rated Level 2 charge time is 10.5 hours. This test figure differs slightly from the peak rate due to efficiency losses during the cycle.
Other vehicles
Charging times derived from EPA data for the 2024 GMC Hummer EV Pickup (covering 4 EPA trim listings). Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.