GMC Sierra EV Charging Time
A 2026 GMC Sierra EV takes about 11.5 hours to charge from empty to full on a 240-volt Level 2 charger, according to its EPA test, and 11.5 to 18.6 hours across the 2026 trims. On a standard 120-volt outlet it takes about 140 hours. A full charge puts about 201.8 kWh through the plug for 385 miles of range.
GMC Sierra EV charging time by charger
Figures for the 2026 SIERRA EV Ext Range (19kW Charger). 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 | 5.8 days |
| Level 2, 240 V, 16 A | 3.8 kW | 31 hr 32 min | 2.2 days |
| Level 2, 240 V, 24 A | 5.8 kW | 21 hr 1 min | 35 hr 2 min |
| Level 2, 240 V, 32 A | 7.7 kW | 15 hr 46 min | 26 hr 17 min |
| Level 2, 240 V, 40 A | 9.6 kW | 12 hr 37 min | 21 hr 1 min |
| Level 2, 240 V, 48 A | 11.5 kW | 10 hr 31 min | 17 hr 31 min |
Work out your own GMC Sierra EV charge
The calculator starts with this model's numbers. Change the charge level or the charger to match yours.
Preset: 2026 GMC SIERRA EV Ext Range (19kW Charger), about 181.6 kWh into the battery for a full charge
EV charging time
15 hr 46 min
from 20% to 80%
- Energy into the battery (181.6 kWh x 60%)
- 109 kWh
- From the wall at 90% efficiency
- 121.1 kWh
- Charging power
- 7.68 kW
- Charging time
- 15.76 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 Sierra EV
A full charge from empty draws about 201.8 kWh from the wall. At 18 cents per kWh it costs about $36.32, and a 20% to 80% top-up about $21.79. The EPA rates the SIERRA EV Ext Range (19kW Charger) at 52.4 kWh per 100 miles, which works out to 9.4 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 Sierra 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 Sierra. The EV charging curve guide explains why it slows.
GMC Sierra 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 Sierra EV trim since 2025.
| Year | Trim | Range | kWh/100 mi | 240 V full charge |
|---|---|---|---|---|
| 2026 | SIERRA EV Ext Range (11kW Charger) | 410 mi | 49.5 | 18.6 hr |
| 2026 | SIERRA EV Ext Range (19kW Charger) | 385 mi | 52.4 | 11.5 hr |
| 2026 | SIERRA EV Std Range (11kW Charger) | 283 mi | 50.3 | 13.3 hr |
| 2025 | Sierra EV | 390 mi | 52.4 | 11.5 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 Sierra EV charging FAQ
How long does a GMC Sierra EV take to charge at home?
On a 240 V Level 2 charger, a 2026 GMC Sierra EV charges from empty to full in about 11.5 hours, the time measured in its EPA test. From 20% to 80% on a 32 A home charger it takes about 15 hr 46 min.
How long does a GMC Sierra EV take to charge on a 120 V outlet?
About 140 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 27 miles of range.
How much does it cost to charge a GMC Sierra EV?
A full charge draws about 201.8 kWh from the wall. At 18 cents per kWh that is about $36.32, or 9.4 cents a mile at its EPA rating of 52.4 kWh per 100 miles.