GMC · 2024–2026
Hummer EV SUV 2X
Dual-motor Hummer EV SUV with 625 HP. 170kWh battery. Standard 11.5kW onboard charger — a 48A Level 2 circuit is all you need for overnight charging. Here's what its onboard charger actually needs from your home's electrical panel.
Home (Level 2) charging facts
Pulled straight from the Hummer EV SUV 2X's onboard charger rating - not a generic EV number.
- Onboard charger draw
- 19.2 kW
- ~80A at 240V (kW × 1000 ÷ 240)
- Empty-to-full at max Level 2
- 8.9 hrs
- 170 kWh battery ÷ 19.2 kW
- Range added per hour
- ~34 mi/hr
- 19.2 kW × 1.76 mi/kWh efficiency
- DC fast charging
- 350 kW max
- Public chargers only - tapers as the battery fills
Typical full-speed install
80A charger on a 100A circuit
Reaches this car's 19.2 kW ceiling. Whether your panel has room for that circuit depends on everything else already on it - that's the actual assessment.
Connector
NACS
NACS (North American Charging Standard, originally Tesla's plug) is now the connector most new EVs are shipping with for both home Level 2 and public DC fast charging.
On the Hummer EV SUV 2X specifically, that connector carries up to 19.2 kW at home on Level 2 and up to 350 kW on public DC fast hardware.
Charging speed by circuit size
None of these common home circuit sizes reach this car's 19.2 kW onboard ceiling - it can use every amp up to 48A.
| Charger setting | This car actually draws | Range added / hour | 8-hr overnight |
|---|---|---|---|
| 16A | 3.8 kW | ~7 mi | ~56 mi |
| 24A | 5.8 kW | ~10 mi | ~80 mi |
| 32A | 7.7 kW | ~14 mi | ~112 mi |
| 40A | 9.6 kW | ~17 mi | ~136 mi |
| 48A | 11.5 kW | ~20 mi | ~160 mi |
Overnight, at full onboard speed
272 mi / 8 hrs
340 mi across a 10-hour window, at 19.2 kW.
Approximate cost to fill from empty
$22.10
Assumes $0.13/kWh (a national-average estimate, not your local rate) × 170 kWh - about $0.074/mile.
GMC Hummer EV SUV charging questions
How long does it take to charge a 2024–2026 GMC Hummer EV SUV 2X on a Level 2 charger?
About 8.9 hours from empty to full at its 19.2 kW onboard-charger ceiling (170 kWh battery ÷ 19.2 kW).
Times scale with amperage - see the circuit-size table above for other settings.
What amperage does a GMC Hummer EV SUV draw on Level 2?
At its full 19.2 kW rate, the GMC Hummer EV SUV draws about 80A at 240V (kW × 1000 ÷ 240 = amps).
Can a GMC Hummer EV SUV use a 48-amp charger?
Yes, and it'll use the full 48A. A 48A charger delivers ~11.5 kW, which is at or under this car's 19.2 kW ceiling - about 20 mi of range per hour.
How much range does a GMC Hummer EV SUV add per hour on a Level 2 charger?
About 34 miles of range per hour at its 19.2 kW ceiling (19.2 kW × 1.76 mi/kWh efficiency).
How much range does an 8-hour overnight charge add to a GMC Hummer EV SUV?
Roughly 272 miles from an 8-hour overnight charge (34 mi/hr × 8 hours), or about 340 miles across a 10-hour window.
What's the DC fast charging ceiling for a GMC Hummer EV SUV?
Up to 350 kW on a public DC fast charger - well above its 19.2 kW Level 2 (home) ceiling, though DC fast rates taper as the battery fills.
Other GMC EVs
Will your panel handle this?
ChargeRight runs the full NEC load calculation against your actual panel - not a generic rule of thumb.
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