At Covert Buick GMC in Austin, TX, we're here to demystify EV charging. Whether you're driving a Hummer EV or Sierra EV, this guide breaks down the types of EV chargers, home installation options, and real-world tips tailored for GMC owners in Central Texas. Beyond what owners see on GMC's official site, this comprehensive guide provides the technical and practical insights needed to navigate EV ownership with confidence.
Electric vehicle charging comes in three distinct levels, each with different capabilities for GMC's electric lineup:
Level 1 charging uses a standard 120V household outlet and provides 1.4 kW of power. While compatible with all GMC EVs through the included Dual Level Charge Cord, it delivers just 3–5 miles of range per hour for models like the Hummer EV and Sierra EV. This translates to 40–50+ hours for a full charge, making it suitable only for emergency situations or minimal daily use.
Level 2 charging uses a 240V connection and forms the backbone of most home and public charging solutions. It significantly reduces charging time and is compatible with most residential setups. GMC offers several options:
For GMC’s large-battery vehicles, Level 2 charging adds between 15–30 miles of range per hour depending on the specific equipment and vehicle capability.
DC Fast Charging uses high-powered stations (50–350 kW) with Combined Charging System (CCS) connectors. GMC’s Ultium-based EVs feature 800V architecture that enables:
GMC EVs can now access Tesla Superchargers through a NACS adapter ($225), significantly expanding the fast-charging network available to owners.
The decision between a 40A and 60A home charging setup directly impacts how quickly you can charge your GMC EV and involves several important considerations.
| Charger | Output | Miles Added Per Hour | Avg Install Cost |
| 40A | 9.6 kW | ~16-18 miles | $1,000 - $1,900 |
| 60A | 11.5 kW | ~22-25 miles | $1,400 - $2,500 |
| 80A | 19.2 kW | ~30 miles | Requires panel upgrade |
*Austin Energy offers rebates covering 50% of costs, up to $1,200 for OCPP-compliant stations or $900 for non-compliant options.
"How much does a home charger cost in Austin?"
"How much will charging add to my electric bill?"
"Can I use third-party chargers?"
"Is public charging more expensive than home?"
"Why does charging slow down after 80%?"
"How can I maximize charging speed?"
GMC’s electric vehicles offer cutting-edge charging capabilities, and Covert Buick GMC is here to help you take full advantage. Whether you need a charger installed, advice on the best equipment, or help with incentives and rebates, we’re your trusted local resource.
