When North Carolina homeowners reach out for an EV charger installation quote, they usually ask us which charger they should actually buy. While there are dozens of brands on the market, the conversation almost always boils down to two premium options: the ChargePoint Home Flex and the Tesla Universal Wall Connector.
Both are excellent, highly reliable Level 2 Chargers. Both can charge your EV from empty to full overnight. Both have fantastic smart apps, and crucially, both are fully compatible with the Duke Energy EV Rebate (the Charger Prep Credit).
So, which one is right for your garage?
The Plug Wars: NACS vs. J1772
To understand why these two chargers are the top contenders, you have to understand the current shift in EV charging standards.
Historically, non-Tesla EVs used a standard plug called J1772, while Tesla used their own proprietary plug, which they recently opened to the public and renamed NACS (North American Charging Standard). Nearly every major automaker (Ford, GM, Hyundai, Rivian, etc.) has announced they are switching to the NACS port in their future vehicles.
The Tesla Universal Wall Connector solves this transition perfectly. It features a “Magic Dock.” If you own a Tesla, you just unhook the cable and plug it in via NACS. If you own a non-Tesla, you press a button on the handle before unhooking it, and the charger automatically attaches a built-in J1772 adapter. This makes it perfect for two-EV households with different brands, and completely future-proofs your garage.
The ChargePoint Home Flex historically came with a J1772 plug, but you can now order it with a NACS plug instead. However, unlike the Tesla Universal Wall Connector, it does not have a built-in adapter for both. If you buy the NACS version but have a friend visit with a J1772 car, they will need a separate, bulky adapter to use your charger.
Charging Speeds and Installation
Both chargers are incredibly fast, but they must be installed correctly to reach their maximum potential.
- Tesla Universal Wall Connector: Capable of up to 48 amps (adds up to 44 miles of range per hour). It must be hardwired into a dedicated circuit by an electrician. There is no plug-in option.
- ChargePoint Home Flex: Capable of up to 50 amps (adds up to 37 miles of range per hour). It can be hardwired, or you can purchase it with a NEMA 14-50 plug.
A Note on Installation: Even if you buy the ChargePoint plug-in version, we strongly recommend having your NC electrician remove the plug and hardwire the unit anyway. Plugs are notorious points of failure for continuous heavy loads like EV charging. Hardwiring is safer, cleaner, and allows you to utilize the charger’s maximum speed (which requires a 60-amp breaker that is incompatible with a standard 50-amp plug).
App Experience and Time-of-Use Savings
Both the Tesla and ChargePoint apps are industry leaders. They both allow you to track charging history, estimate costs, and most importantly, set charging schedules.
If you are a North Carolina resident on a Duke Energy Time-of-Use Rate, scheduling is critical. You want to ensure your car only pulls power during the cheap off-peak hours (usually overnight). Both apps handle this flawlessly, allowing you to plug your car in at 5:00 PM, but telling the charger not to actually supply power until 9:00 PM when rates drop.
The ChargePoint app has a slight edge in cost tracking, as it allows you to input your specific utility rate details very easily to get highly accurate estimates of what your charging is costing you. However, the Tesla app is more unified if you also own a Tesla vehicle or a Tesla Powerwall.
Hardware and Cable Management
- The Cable: The ChargePoint Home Flex is famous for having one of the best cables in the industry. It remains flexible and easy to maneuver even in freezing winter temperatures. The Tesla cable is slightly stiffer, though still high quality. Both come with a 23-foot cable or a 24-foot cable, which is long enough to reach multiple bays in a standard garage.
- The Aesthetics: The Tesla Universal Wall Connector features a sleek, glass-front design that looks incredibly premium. The ChargePoint is more utilitarian but very compact.
- Power Sharing: If you plan to install two chargers on the same electrical circuit, the Tesla Wall Connectors can communicate with each other to automatically share the available power without tripping your breaker. This is a massive advantage if your home requires a panel upgrade to support a second charger.
Which Should You Choose?
- Choose the Tesla Universal Wall Connector if: You want the most future-proof hardware on the market, you have a two-EV household with different plug types, or you plan to install multiple chargers on a single circuit using power sharing.
- Choose the ChargePoint Home Flex if: You prioritize having a highly flexible cable, you want granular utility cost tracking in the app, or you are deeply integrated into the ChargePoint public charging network and want one app for everything.
Whichever you choose, evsolarnc.com can connect you with a licensed local electrician to ensure it is installed safely and up to NC code.