What home charger does the GMC Sierra EV need?
| Model years | Trims | Charger | Breaker |
|---|---|---|---|
| 2025-2026 | all trims | 80 A | 100 A |
The GMC Sierra EV accepts 19.2 kW on AC, so the charger that gets full speed out of it is an 80 A unit on a 100 A breaker. That applies to the 2025 and 2026 trucks.
Why 80 amps and not more
At 80 A a 2026 Sierra EV adds 38 to 39 miles of range per hour. A 48 A charger cuts that to about 23, which matters when the battery is this big. With up to 410 miles of range to put back, the faster charger is what keeps an empty truck from needing more than a night.
Charging time by model year
| Year | EPA range | Level 2, miles per hour | Level 2, empty to full | 120 V, miles per hour |
|---|---|---|---|---|
| 2026 | 283 to 410 mi | 38 to 39 | 7.4 to 10.6 h | 2.9 |
| 2025 | 390 mi | 37 | 10.6 h | 2.8 |
Level 2 figures assume a charger that supplies the car's full rate. Where a year shows a range, it spans that year's trims.
The 2025 Sierra EV came with 390 miles of range and takes 10.6 hours to fill from empty at 80 A. The 2026 lineup spreads from 283 to 410 miles, and the smaller-battery trucks fill in as little as 7.4 hours.
What it costs to charge at home
At the U.S. average residential rate of 18.19¢ per kWh, the 2026 GMC Sierra EV costs 9.0 to 9.5¢ a mile to charge at home. A full charge from empty comes to about $26 to $37, and 37 miles a day to about $101 to $107 a month. EPA measures energy use at the wall, so the energy lost while charging is already counted. Rates run from 12.36¢ in North Dakota to 46.28¢ in Hawaii, and the cost guide has every state.
What the install involves
Most homes need work to add a 100 A circuit. The electrician will run a load calculation, and some houses need a service upgrade before an 80 A charger can go in. The charger is hardwired either way.
- 80 A charger: 100 A breaker, hardwired only.
- Dryer outlet: a 4-prong NEMA 14-30 on a 30 A breaker can run a 24 A charger. That adds about 11 to 12 miles of range per hour to the 2026 GMC Sierra EV, or 110 to 120 in a 10-hour night. What to check first.
- Charge port: J1772. From 2025 the industry is moving to the NACS port, and makers switch at different times. Some of these cars have a J1772 port and some have NACS with an adapter, so look at the port on your own car before choosing a charger's plug.
Chargers that fit the GMC Sierra EV
Smallest adequate unit first. Every amp above what the car accepts is capacity it never uses.
One of the few home units that can feed an 80 A car. Needs a 100 A circuit.
Worth having as well
Common questions
- Does the GMC Sierra EV need an 80 A charger?
- To charge at full speed, yes. A 48 A charger on a 60 A breaker works, but slower.
- How long does a GMC Sierra EV take to charge from empty?
- Between 7.4 and 10.6 hours on an 80 A charger, depending on the battery.
- Does a public Level 2 station charge a GMC Sierra EV faster than a home unit?
- No. The truck accepts 19.2 kW at most, which an 80 A home charger already supplies.
- How much does a 120 V outlet add to a GMC Sierra EV?
- About 2.8 to 2.9 miles of range per hour, which barely dents a battery this size.
Before you buy
Other models
Range and efficiency come from EPA data for the GMC Sierra EV, covering 3 EPA listings across 2 model years. Onboard charger ratings are from manufacturer specifications. Breakers follow NEC 625.41, which sizes a continuous load at 125%. Have a licensed electrician check your panel before buying.