How long to charge a GMC Hummer EV at home
Typical trim (Hummer EV Pickup MT Tires 3X): 70.3 kWh/100 mi · EPA range 289 mi · on a 48 A (11.5 kW) charger about 16 mi of range per hour*
EPA lists a 240 V full-charge time of 11.2 h for this trim, which implies an average of roughly 18.1 kW (our estimate, = 203 kWh ÷ 11.2 h). Chargers well above that are unlikely to charge this car faster on AC; check the owner's manual for the onboard charger rating.
Range added by charger size (typical trim)
| Charger | Range per hour | Per 8-hour night | Empty to full EPA range |
|---|---|---|---|
| 12 A at 120 V (Level 1 cord) (1.4 kW) | 2 mi | 16 mi | 141.1 h |
| 16 A at 240 V (3.8 kW) | 5 mi | 44 mi | 52.9 h |
| 24 A at 240 V (5.8 kW) | 8 mi | 66 mi | 35.3 h |
| 32 A at 240 V (7.7 kW) | 11 mi | 87 mi | 26.5 h |
| 40 A at 240 V (9.6 kW) | 14 mi | 109 mi | 21.2 h |
| 48 A at 240 V (11.5 kW) | 16 mi | 131 mi | 17.6 h |
| 64 A at 240 V (15.4 kW) | 22 mi | 175 mi | 13.2 h |
| 80 A at 240 V (19.2 kW) | 27 mi | 218 mi | 10.6 h |
*Estimates: charger kW ÷ EPA kWh/100 mi × 100, assuming the car accepts that power. Charging tapers near 100% and is slower in the cold.
All 8 trims (EPA data)
| Trim | kWh/100 mi | EPA range | EPA 240 V charge time | Energy for full range (est.) | Source |
|---|---|---|---|---|---|
| 2025 Hummer EV Pickup 2X | 63.9 | 318 mi | 11.2 h | 203 kWh | record 48343 |
| 2025 Hummer EV SUV 2X | 63.9 | 315 mi | 11.2 h | 201 kWh | record 48347 |
| 2025 Hummer EV Pickup 3X | 65.1 | 312 mi | 11.2 h | 203 kWh | record 48344 |
| 2025 Hummer EV SUV 3X | 65.1 | 312 mi | 11.2 h | 203 kWh | record 48348 |
| 2025 Hummer EV Pickup MT Tires 3X | 70.3 | 289 mi | 11.2 h | 203 kWh | record 48346 |
| 2025 Hummer EV SUV MT Tires 3X | 70.3 | 289 mi | 11.2 h | 203 kWh | record 48350 |
| 2025 Hummer EV Pickup MT Tires 2X | 71.7 | 282 mi | 11.2 h | 202 kWh | record 48345 |
| 2025 Hummer EV SUV MT Tires 2X | 71.7 | 282 mi | 11.2 h | 202 kWh | record 48349 |
Source: fueleconomy.gov vehicle records (2025 model years). "Energy for full range" = kWh/100 mi × range ÷ 100, measured at the wall, so it includes charging losses and is not the battery size. Usable battery capacity is not in EPA data (data gap).
Will a bigger charger charge it faster? (per trim)
Times are empty to full EPA range. They are capped at the onboard charger rating only where EPA's own trim name states it. Otherwise they assume the car accepts the charger's full power, which may overstate the gain from 48 A and 80 A units.
| Trim | 32 A | 40 A | 48 A | 80 A | EPA 240 V time | What EPA data shows |
|---|---|---|---|---|---|---|
| 2025 Hummer EV Pickup 2X | 26.5 h | 21.2 h | 17.6 h | 10.6 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV SUV 2X | 26.2 h | 21.0 h | 17.5 h | 10.5 h | 11.2 h | EPA time implies ≥18.0 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV Pickup 3X | 26.4 h | 21.2 h | 17.6 h | 10.6 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV SUV 3X | 26.4 h | 21.2 h | 17.6 h | 10.6 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV Pickup MT Tires 3X | 26.5 h | 21.2 h | 17.6 h | 10.6 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV SUV MT Tires 3X | 26.5 h | 21.2 h | 17.6 h | 10.6 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV Pickup MT Tires 2X | 26.3 h | 21.1 h | 17.6 h | 10.5 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
| 2025 Hummer EV SUV MT Tires 2X | 26.3 h | 21.1 h | 17.6 h | 10.5 h | 11.2 h | EPA time implies ≥18.1 kW average, so it accepts more than a 48 A charger gives. |
† Only if the car accepts that much power. This charger is more than 10% above the average power implied by EPA's own 240 V time, so treat EPA's time as the realistic figure.