What EV Charger Do You Need for a 2025 BMW i7 M70 Sedan?
You need a 48 amp Level 2 home charger to fill the 121.0 kWh battery in your 2025 BMW i7 M70 Sedan overnight. The car has an onboard charger maxed out at 11.0 kW. Buying a larger charger will not speed up the charge time.
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 11.0 hours |
| Range added per hour (Level 2) | about 26 miles |
| Full charge on a 120 V outlet | about 84 hours |
| Range added per hour (120 V) | about 3.4 miles |
| EPA rated range | 285 miles |
| Energy for a full charge | about 121.0 kWh at the wall |
Why 48 amps and not more
Your car draws 48 amps because that is the limit of its onboard hardware. Feeding it more than 48 amps is a waste of money. The vehicle will ignore the extra capacity. A 48 amp unit puts back 26 miles of range every hour. You get a full battery in 11.0 hours.
What the install involves
A 48 amp charger requires a 60 amp breaker. Code rules state that a continuous load like an EV must not exceed eighty percent of the circuit rating. Hardwire the unit directly to the panel. No household receptacle handles 48 amps safely. Call an electrician to run the wire and mount the box.
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 use a standard wall outlet?
- Level 1 charging on a standard household outlet takes 84 hours for a full charge. It only adds 3.4 miles of range per hour. You need a Level 2 setup for daily driving.
- What plug does the car use?
- The car has a J1772 connector. This model year falls in the industry transition. Many 2025+ vehicles ship with a NACS port but include a J1772 adapter.
- Why does the EPA charge time differ?
- The EPA test estimates 12.0 hours at 24 miles of range per hour. Real world testing at the peak 48 amp rate hits a full charge in 11.0 hours at 26 miles per hour.
- Do I need a 50 amp charger?
- Your car tops out at 48 amps. A 50 amp unit will work, but the car will throttle the draw down to 48 amps. Stick to the recommended 48 amp specification.
Other vehicles
Charging times derived from EPA data for the 2025 BMW i7 M70 Sedan (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.