GMC Sierra EV home charger: charge time and which amps it can use

GMC Sierra EV home charger buying guide: chargers matched to it

Matching a charger to this car starts with its charge port, and we have not verified which port the GMC Sierra EV has for any model year we track, so no matched charger is named. It takes at most 19 kW, which it reaches at 80 A; check the charge port door, then use the table below, which lists every charger by amps.

Charge time by charger amps

A charger's amp rating sets its power on a 240 volt circuit; the car then takes the smaller of that and its own onboard limit. Each row is one standard charger rating.

Power is amps times 240 volts. Full-charge times divide the EPA wall energy for a full charge (142 to 203 kWh), which already includes charging losses, by the rate the car accepts. The comparison column reads the highest-rated trim. The last column counts chargers in this database rated at exactly that current.

How these Level 2 times compare with a standard 120 volt outlet, in hours to full and miles added overnight for every vehicle family, is in Level 1 vs Level 2 charging compared by vehicle.

Charging the GMC Sierra EV on a regular 120 volt outlet

A standard household outlet is Level 1 charging. On a 15 A household circuit it can supply 12 A for hours at a time, which is 1.44 kW: far below the car's 19 kW limit, so the outlet, not the car, sets the speed.

The 120 V figures divide the EPA wall energy for a full charge (142 to 203 kWh) by 1.44 kW, and multiply 1.44 kW by the EPA range per wall kWh of the lowest and highest configuration, the same arithmetic as the Level 2 table above. EPA measures that energy on a Level 2 charger; the same wall energy is assumed on Level 1. The 15 A circuit's 12 A ceiling is the NEC 125 percent continuous-load rule (210.20(A)). No maker page we could verify states which charging cord, if any, ships with this car, so none is stated.

GMC Sierra EV charge port by model year

The port is the one a home charger plugs into. A year with two rows has a trim or build split. An adapter covers either direction.

Chargers that fit the GMC Sierra EV, by amps

Selection rule, in full: only chargers with a verified price appear; grouped by the charger's rated current; the 5 lowest verified prices in each group. Nothing here is an editorial pick.

Prices were verified at a named seller on October 26, 2026. Rate and full charge assume the 19 kW onboard charger; lower-rated trims cap lower, as the table above shows.

See all 248 chargers that fit this vehicle

Charge rate depends on which GMC Sierra EV you have

This family does not charge at one speed. 2 different AC intake ratings ship across the 3 trims, and a charger cannot exceed the one in your car. Buying for the higher figure when you own the lower trim buys nothing.

Intake figures are manufacturer-published, not derived from EPA data. Source: the maker's own documentation. Full-charge times assume 142 to 203 kWh drawn from the wall, which already includes charging losses.

What a full charge costs

Electricity is the whole running cost, and it is the number that varies most by where you live. A full 142 to 203 kWh at the GMC Sierra EV, priced three ways:

Rates are the EIA residential series, August 2026. Your own utility and any time-of-use plan decide the real figure.

Work it out for your own state with the charging cost calculator.

The circuit this car needs

A home charger is a continuous load, so the National Electrical Code sizes both the breaker and the conductor at 125 percent of its draw. A charger matched to this car's 19 kW ceiling pulls 79 amps at 240 volts, which needs a 100 amp circuit rather than the 80 amp one the arithmetic alone suggests. That gap is where most installation quotes go wrong.

Of the 248 chargers in the catalog here, 44 meet or beat the car's ceiling. Going above it changes nothing for this vehicle, though it leaves headroom for a future one that draws more.