What EV Charger Do You Need for a 2027 Cadillac Optiq 19kW Charger?
Wiring a home charger for this vehicle means pulling a 100 A circuit and hardwiring the unit directly. You need a licensed electrician to evaluate panel capacity and land the heavy wire on a dedicated breaker. Without this setup, refueling takes days instead of hours.
The numbers
| Maximum AC charging rate | 19.2 kW (80 A) |
|---|---|
| Charger size to buy | 80 A |
| Circuit breaker required | 100 A |
| Outlet / connection | hardwired only |
| Charge port | J1772 |
| Full charge on Level 2 | about 5.3 hours |
| Range added per hour (Level 2) | about 60 miles |
| Full charge on a 120 V outlet | about 71 hours |
| Range added per hour (120 V) | about 4.5 miles |
| EPA rated range | 317 miles |
| Energy for a full charge | about 101.7 kWh at the wall |
Why 80 amps and not more
Your car accepts an 80 A draw and maxes out its 19.2 kW onboard charger at that rate. Feeding it less amperage leaves charging speed on the table. The battery holds 101.7 kWh, so moving power quickly matters. Pumping 80 amps into the vehicle delivers 60 miles of range per hour and refills a dead pack in 5.3 hours. The EPA test estimates 54 miles per hour because standard federal test cycles do not always run at the absolute peak AC rate of the vehicle.
What the install involves
The manual states hardwired only for this high current draw, meaning no wall receptacle is allowed. An electrician must run heavy gauge wire to support the required 100 A breaker. Older electrical panels might lack the physical space or service capacity for this load. Upgrading the service entrance sometimes happens when drawing this much power at once.
Chargers that match this car
The first unit matches your car's full 80 A. The others are slightly slower but cost less.
One of the few home units that can feed an 80 A car. Needs a 100 A circuit.
Adjustable from 16 A to 50 A in the app, which helps if your panel is tight.
Energy monitoring built in. Hardwire it for the full 48 A.
Worth having as well
Common questions
- Can I plug this car into a regular wall outlet?
- Level 1 charging from a standard household outlet takes 71 hours for a full refill. It adds 4.5 miles of range per hour. You will want a Level 2 setup for daily convenience.
- Do I need to hardwire the charger?
- Yes. This vehicle requires hardwired installation only because of the massive 80 A draw. Receptacles cannot handle continuous high loads of this magnitude safely.
- What connector does the car use?
- The vehicle uses a J1772 connector. Many modern cars fall into the industry NACS transition and ship with ports that accept adapters. Confirm your specific port layout before ordering hardware.
- How much range does Level 2 add?
- At the maximum 80 A rate, your car gains 60 miles of range per hour. The EPA test measures 54 miles per hour under standardized testing conditions.
Other vehicles
Charging times derived from EPA data for the 2027 Cadillac Optiq 19kW Charger (covering 2 EPA trim listings). Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.