GMC Hummer EV Charging Time
A 2025 GMC Hummer EV takes about 11.2 hours to charge from empty to full on a 240-volt Level 2 charger, according to its EPA test. On a standard 120-volt outlet it takes about 141 hours. A full charge puts about 203.1 kWh through the plug for 289 miles of range.
GMC Hummer EV charging time by charger
Figures for the 2025 Hummer EV Pickup MT Tires 3X. 20% to 80% is a typical daily top-up; 0% to 100% is a full charge from empty.
| Charger | Power | 20% to 80% | 0% to 100% |
|---|---|---|---|
| Level 1, 120 V outlet (12 A) | 1.4 kW | 3.5 days | 5.9 days |
| Level 2, 240 V, 16 A | 3.8 kW | 31 hr 44 min | 2.2 days |
| Level 2, 240 V, 24 A | 5.8 kW | 21 hr 9 min | 35 hr 16 min |
| Level 2, 240 V, 32 A | 7.7 kW | 15 hr 52 min | 26 hr 27 min |
| Level 2, 240 V, 40 A | 9.6 kW | 12 hr 42 min | 21 hr 9 min |
| Level 2, 240 V, 48 A | 11.5 kW | 10 hr 35 min | 17 hr 38 min |
Work out your own GMC Hummer EV charge
The calculator starts with this model's numbers. Change the charge level or the charger to match yours.
Preset: 2025 GMC Hummer EV Pickup MT Tires 3X, about 182.8 kWh into the battery for a full charge
EV charging time
15 hr 52 min
from 20% to 80%
- Energy into the battery (182.8 kWh x 60%)
- 109.7 kWh
- From the wall at 90% efficiency
- 121.9 kWh
- Charging power
- 7.68 kW
- Charging time
- 15.87 hours
For home and public AC charging. DC fast chargers are much faster at first and then slow down past about 80%, so this formula does not fit them.
Cost to charge a GMC Hummer EV
A full charge from empty draws about 203.1 kWh from the wall. At 18 cents per kWh it costs about $36.56, and a 20% to 80% top-up about $21.93. The EPA rates the Hummer EV Pickup MT Tires 3X at 70.3 kWh per 100 miles, which works out to 12.7 cents a mile. The US average home rate was 18.16 cents per kWh in August 2026 (EIA); the EV charging cost calculator takes your own rate.
GMC Hummer EV fast charging
DC fast charging bypasses the car's onboard charger and is far quicker, but the speed depends on each model's charging curve, which slows as the battery fills. That's why fast-charge times are quoted from 10% to 80%. The EPA doesn't test DC charging, so check GMC's quoted figure for the Hummer EV. The EV charging curve guide explains why it slows.
GMC Hummer EV charging time by trim and year
EPA range, electricity use (kWh per 100 miles, measured at the wall) and 240 V full-charge time for each GMC Hummer EV trim since 2024.
| Year | Trim | Range | kWh/100 mi | 240 V full charge |
|---|---|---|---|---|
| 2025 | Hummer EV Pickup 2X | 318 mi | 63.9 | 11.2 hr |
| 2025 | Hummer EV Pickup 3X | 312 mi | 65.1 | 11.2 hr |
| 2025 | Hummer EV Pickup MT Tires 2X | 282 mi | 71.7 | 11.2 hr |
| 2025 | Hummer EV Pickup MT Tires 3X | 289 mi | 70.3 | 11.2 hr |
| 2025 | Hummer EV SUV 2X | 315 mi | 63.9 | 11.2 hr |
| 2025 | Hummer EV SUV 3X | 312 mi | 65.1 | 11.2 hr |
| 2025 | Hummer EV SUV MT Tires 2X | 282 mi | 71.7 | 11.2 hr |
| 2025 | Hummer EV SUV MT Tires 3X | 289 mi | 70.3 | 11.2 hr |
| 2024 | Hummer EV Pickup | 314 mi | 63.4 | 10.5 hr |
| 2024 | Hummer EV Pickup 2M20 | 311 mi | 65 | 10.5 hr |
| 2024 | Hummer EV Pickup MT Tires | 298 mi | 63 | 10.5 hr |
| 2024 | Hummer EV Pickup MT Tires 2M20 | 279 mi | 71.7 | 10.5 hr |
| 2024 | Hummer EV SUV | 314 mi | 63.4 | 10.5 hr |
| 2024 | Hummer EV SUV 2M20 | 303 mi | 66 | 10.5 hr |
| 2024 | Hummer EV SUV MT Tires | 298 mi | 63 | 10.5 hr |
| 2024 | Hummer EV SUV MT Tires 2M20 | 279 mi | 71.7 | 10.5 hr |
Source: EPA test data published on fueleconomy.gov. Level 1 and per-charger times are worked out from each trim's range, electricity use and the charger's power. How we calculate.
GMC Hummer EV charging FAQ
How long does a GMC Hummer EV take to charge at home?
On a 240 V Level 2 charger, a 2025 GMC Hummer EV charges from empty to full in about 11.2 hours, the time measured in its EPA test. From 20% to 80% on a 32 A home charger it takes about 15 hr 52 min.
How long does a GMC Hummer EV take to charge on a 120 V outlet?
About 141 hours from empty to full on a standard 120 V outlet at 12 A, which delivers 1.44 kW. Overnight, about 10 hours, adds roughly 20 miles of range.
How much does it cost to charge a GMC Hummer EV?
A full charge draws about 203.1 kWh from the wall. At 18 cents per kWh that is about $36.56, or 12.7 cents a mile at its EPA rating of 70.3 kWh per 100 miles.