What EV Charger Do You Need for a 2022 Rivian R1S?
You need a 48 amp Level 2 home charging setup to fill your battery overnight. The vehicle's onboard charger limits AC intake at 11.5 kilowatts. Plugging into a standard household outlet gives you 3.0 miles of range per hour, which takes 107 hours for a full charge.
The numbers
| Maximum AC charging rate | 11.5 kW (48 A) |
|---|---|
| Charger size to buy | 48 A |
| Circuit breaker required | 60 A |
| Outlet / connection | hardwired (a 48 A EVSE must be hardwired -- no household receptacle is rated for it) |
| Charge port | J1772 |
| Full charge on Level 2 | about 13.4 hours |
| Range added per hour (Level 2) | about 24 miles |
| Full charge on a 120 V outlet | about 107 hours |
| Range added per hour (120 V) | about 3.0 miles |
| EPA rated range | 316 miles |
| Energy for a full charge | about 153.6 kWh at the wall |
Why 48 amps and not more
Your vehicle draws 48 amps because that matches the maximum capacity of the onboard charger. Feeding it a larger 50 amp unit like the ChargePoint Home Flex will not speed up charging times because the car caps the intake. Going down to a smaller breaker leaves capacity on the table and slows down your replenishment rate. At the correct 48 amp draw, you recover 24 miles of range per hour. A complete empty-to-full cycle takes 13.4 hours at this speed.
What the install involves
A 48 amp continuous load requires a dedicated 60 amp breaker paired with heavy-gauge copper wiring. Hardwiring is mandatory here because no standard household receptacle handles 48 amps safely over long durations. Hire a licensed electrician to run the circuit from your main panel to the garage wall. They will mount the unit, torque the line terminals to spec, and verify local electrical code compliance before you plug in.
Chargers that match this car
Energy monitoring built in. Hardwire it for the full 48 A.
Compact unit, good for tight garages.
Adjustable from 16 A to 50 A in the app, which helps if your panel is tight.
Worth having as well
Common questions
- What plug does this car use?
- The vehicle uses a J1772 connector. Every non-Tesla EV sold in North America through 2024 uses the J1772 connector for AC Level 2 charging.
- Can I use a wall outlet instead?
- You can plug into a standard household outlet for Level 1 charging, but it adds only 3.0 miles per hour. That leaves your large battery crawling at 107 hours for a full replenishment.
- How fast is Level 2 charging?
- At the maximum onboard rate of 48 amps, you gain 24 miles of range per hour. The EPA test logs the same 24 miles of range per hour.
- Which charger products work?
- You can buy the Emporia Level 2 EV Charger 48A, the Lectron V-Box 48A, or the ChargePoint Home Flex. Hardwire any of them to get the full 48 amp speed.
Other vehicles
Charging times derived from EPA data for the 2022 Rivian R1S. Electrical requirements follow NEC 625.41, which sizes a circuit at 125% of a continuous load. Always have a licensed electrician verify your panel.