What EV Charger Do You Need for a 2027 Cadillac Optiq V Series 19kW Charger?
Eighty amperes. That is the exact draw your car demands for peak AC charging. Your onboard charger takes 19.2 kilowatts, meaning you need a heavy duty setup to refill the 102.5 kWh battery from home. A standard wall outlet will not cut it.
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 47 miles |
| Full charge on a 120 V outlet | about 71 hours |
| Range added per hour (120 V) | about 3.5 miles |
| EPA rated range | 250 miles |
| Energy for a full charge | about 102.5 kWh at the wall |
Why 80 amps and not more
Your car has a massive onboard AC capacity that swallows 80 amps through a J1772 connection. Plugging into a smaller 48 amp or 50 amp unit wastes that onboard hardware and slows down your overnight turnaround. The EPA test logs a slightly slower rate of 5.9 hours because standard testing protocols do not always match the maximum peak AC rate of the vehicle. At your car's absolute peak, a full charge takes 5.3 hours and adds 47 miles of range every hour. Buying anything smaller than an 80 amp supply leaves potential charging speed on the table.
What the install involves
You need a hardwired setup because plugs do not exist for this amperage level. An electrician must pull heavy gauge wire, land it on a dedicated 100 amp breaker, and verify your main panel has spare capacity for the load. Do not attempt this DIY work. High current residential wiring leaves zero room for error.
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 use a regular wall plug?
- No. Standard household outlets deliver 15 or 20 amps at 120 volts, which gives you a painful 71 hours for a full charge. You need a dedicated high output circuit.
- What connector does the car use?
- It uses a J1772 connector. This model year falls in the industry's NACS transition, so many vehicles ship with a NACS port but include a J1772 adapter.
- Why does the EPA charge time differ from the peak spec?
- The EPA test does not always run at the car's peak AC rate, yielding a 5.9 hour time instead of the absolute maximum 5.3 hour rate.
- Do I need an electrician for the install?
- Yes. This system requires a 100 amp breaker and hardwired connections, which demands professional electrical work to pull the right gauge wire and verify panel capacity.
Other vehicles
Charging times derived from EPA data for the 2027 Cadillac Optiq V Series 19kW Charger. Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.