What EV Charger Do You Need for a 2023 BMW i4 eDrive40 Gran Coupe?
Wiring a 60 amp breaker requires a licensed electrician to run heavy gauge wire for a hardwired connection. Your car draws 48 amps on a Level 2 circuit, refilling the 102.1 kWh battery from empty in 9.3 hours. Standard household outlets cannot handle this load. You need a dedicated hardwired supply.
The numbers
| Maximum AC charging rate | 11.0 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 9.3 hours |
| Range added per hour (Level 2) | about 32 miles |
| Full charge on a 120 V outlet | about 71 hours |
| Range added per hour (120 V) | about 4.2 miles |
| EPA rated range | 301 miles |
| Energy for a full charge | about 102.1 kWh at the wall |
Why 48 amps and not more
The onboard charger caps AC intake at 48 amps. Buying a larger charging unit provides no speed benefit because the car limits power flow. Pushing 48 amps delivers 32 miles of range per hour of charging. Dropping down to a smaller circuit reduces this speed. Match the supply to the car's 11.0 kW limit.
What the install involves
Code requires a hardwired connection for any 48 amp EVSE because household receptacles fail under continuous high loads. An electrician must install a 60 amp breaker in your main panel and run conduit to the charger location. Do not attempt DIY work on a circuit of this size. Local permits and inspections apply to this installation.
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
- Can I plug this car into a standard wall outlet?
- Level 1 charging from a standard household plug yields 4.2 miles per hour. A full recharge takes 71 hours. Hardwiring a Level 2 unit is much faster.
- What connector does the car use?
- The vehicle uses a J1772 connector for AC Level 2 charging. Every non-Tesla EV sold in North America through 2024 uses this standard.
- Why does the EPA charge time differ from the max rate?
- The EPA test does not always run at the car's peak AC rate. The EPA rating lists 10.0 hours for a full charge at 30 miles per hour.
- What happens if I use a 50 amp charger like the ChargePoint Home Flex?
- The car limits current draw to 48 amps anyway. You will still charge at the maximum onboard rate of 11.0 kW.
Other vehicles
Charging times derived from EPA data for the 2023 BMW i4 eDrive40 Gran Coupe (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.