How long to charge a BMW i7 at home
Typical trim (i7 xDrive60 Sedan (21 inch All-Season Tires)): 38.4 kWh/100 mi · EPA range 344 mi · on a 48 A (11.5 kW) charger about 30 mi of range per hour*
EPA lists a 240 V full-charge time of 11 h for this trim, which implies an average of roughly 12.0 kW (our estimate, = 132 kWh ÷ 11 h). Chargers well above that are unlikely to charge this car faster on AC; check the owner's manual for the onboard charger rating.
Range added by charger size (typical trim)
| Charger | Range per hour | Per 8-hour night | Empty to full EPA range |
|---|---|---|---|
| 12 A at 120 V (Level 1 cord) (1.4 kW) | 4 mi | 30 mi | 91.7 h |
| 16 A at 240 V (3.8 kW) | 10 mi | 80 mi | 34.4 h |
| 24 A at 240 V (5.8 kW) | 15 mi | 120 mi | 22.9 h |
| 32 A at 240 V (7.7 kW) | 20 mi | 160 mi | 17.2 h |
| 40 A at 240 V (9.6 kW) | 25 mi | 200 mi | 13.8 h |
| 48 A at 240 V (11.5 kW) | 30 mi | 240 mi | 11.5 h |
| 64 A at 240 V (15.4 kW) | 40 mi | 320 mi | 8.6 h |
| 80 A at 240 V (19.2 kW) | 50 mi | 400 mi | 6.9 h |
*Estimates: charger kW ÷ EPA kWh/100 mi × 100, assuming the car accepts that power. Charging tapers near 100% and is slower in the cold.
All 16 trims (EPA data)
| Trim | kWh/100 mi | EPA range | EPA 240 V charge time | Energy for full range (est.) | Source |
|---|---|---|---|---|---|
| 2027 i7 xDrive50 Sedan (20 inch Summer Tires) | 35.5 | 373 mi | 11 h | 132 kWh | record 50840 |
| 2027 i7 xDrive60 Sedan (20 inch Summer Tires) | 36.5 | 362 mi | 11 h | 132 kWh | record 50608 |
| 2027 i7 xDrive50 Sedan (21 inch Summer Tires) | 36.8 | 364 mi | 11 h | 134 kWh | record 50606 |
| 2027 i7 xDrive50 Sedan (20 inch All-Season Tires) | 37.4 | 354 mi | 11 h | 132 kWh | record 50604 |
| 2027 i7 xDrive50 Sedan (21 inch All-Season Tires) | 37.4 | 354 mi | 11 h | 132 kWh | record 50605 |
| 2026 i7 eDrive50 Sedan (19 inch Wheels) | 38.2 | 314 mi | 10 h | 120 kWh | record 49940 |
| 2027 i7 xDrive60 Sedan (21 inch Summer Tires) | 38.3 | 348 mi | 11 h | 133 kWh | record 50610 |
| 2027 i7 xDrive60 Sedan (20 inch All-Season Tires) | 38.4 | 344 mi | 11 h | 132 kWh | record 50607 |
| 2027 i7 xDrive60 Sedan (21 inch All-Season Tires) | 38.4 | 344 mi | 11 h | 132 kWh | record 50609 |
| 2026 i7 xDrive60 Sedan (19 inch Wheels) | 38.4 | 311 mi | 10 h | 119 kWh | record 49945 |
| 2026 i7 xDrive60 Sedan (21 inch Wheels) | 38.8 | 308 mi | 10 h | 120 kWh | record 49947 |
| 2026 i7 eDrive50 Sedan (21 inch Wheels) | 38.9 | 307 mi | 10 h | 119 kWh | record 49942 |
| 2026 i7 eDrive50 Sedan (20 inch Wheels) | 39.9 | 301 mi | 10 h | 120 kWh | record 49941 |
| 2026 i7 xDrive60 Sedan (20 inch Wheels) | 40.8 | 296 mi | 10 h | 121 kWh | record 49946 |
| 2026 i7 M70 xDrive Sedan (21 inch Wheels) | 42.5 | 285 mi | 10 h | 121 kWh | record 49944 |
| 2026 i7 M70 xDrive Sedan (20 inch Wheels) | 45.1 | 267 mi | 10 h | 120 kWh | record 49943 |
Source: fueleconomy.gov vehicle records (2026, 2027 model years). "Energy for full range" = kWh/100 mi × range ÷ 100, measured at the wall, so it includes charging losses and is not the battery size. Usable battery capacity is not in EPA data (data gap).
Will a bigger charger charge it faster? (per trim)
Times are empty to full EPA range. They are capped at the onboard charger rating only where EPA's own trim name states it. Otherwise they assume the car accepts the charger's full power, which may overstate the gain from 48 A and 80 A units.
| Trim | 32 A | 40 A | 48 A | 80 A | EPA 240 V time | What EPA data shows |
|---|---|---|---|---|---|---|
| 2027 i7 xDrive50 Sedan (20 inch Summer Tires) | 17.2 h | 13.8 h | 11.5 h | 6.9 h† | 11 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2027 i7 xDrive60 Sedan (20 inch Summer Tires) | 17.2 h | 13.8 h | 11.5 h | 6.9 h† | 11 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2027 i7 xDrive50 Sedan (21 inch Summer Tires) | 17.4 h | 14.0 h | 11.6 h | 7.0 h† | 11 h | EPA time implies ≥12.2 kW average, so it accepts more than a 48 A charger gives. |
| 2027 i7 xDrive50 Sedan (20 inch All-Season Tires) | 17.2 h | 13.8 h | 11.5 h | 6.9 h† | 11 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2027 i7 xDrive50 Sedan (21 inch All-Season Tires) | 17.2 h | 13.8 h | 11.5 h | 6.9 h† | 11 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 eDrive50 Sedan (19 inch Wheels) | 15.6 h | 12.5 h | 10.4 h | 6.2 h† | 10 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2027 i7 xDrive60 Sedan (21 inch Summer Tires) | 17.4 h | 13.9 h | 11.6 h | 6.9 h† | 11 h | EPA time implies ≥12.1 kW average, so it accepts more than a 48 A charger gives. |
| 2027 i7 xDrive60 Sedan (20 inch All-Season Tires) | 17.2 h | 13.8 h | 11.5 h | 6.9 h† | 11 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2027 i7 xDrive60 Sedan (21 inch All-Season Tires) | 17.2 h | 13.8 h | 11.5 h | 6.9 h† | 11 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 xDrive60 Sedan (19 inch Wheels) | 15.5 h | 12.4 h | 10.4 h | 6.2 h† | 10 h | EPA time implies ≥11.9 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 xDrive60 Sedan (21 inch Wheels) | 15.6 h | 12.4 h | 10.4 h | 6.2 h† | 10 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 eDrive50 Sedan (21 inch Wheels) | 15.5 h | 12.4 h | 10.4 h | 6.2 h† | 10 h | EPA time implies ≥11.9 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 eDrive50 Sedan (20 inch Wheels) | 15.6 h | 12.5 h | 10.4 h | 6.3 h† | 10 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 xDrive60 Sedan (20 inch Wheels) | 15.7 h | 12.6 h | 10.5 h | 6.3 h† | 10 h | EPA time implies ≥12.1 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i7 M70 xDrive Sedan (21 inch Wheels) | 15.8 h | 12.6 h | 10.5 h | 6.3 h† | 10 h | EPA time implies ≥12.1 kW average, so it accepts more than a 48 A charger gives. |
| 2026 i7 M70 xDrive Sedan (20 inch Wheels) | 15.7 h | 12.5 h | 10.5 h | 6.3 h† | 10 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
† Only if the car accepts that much power. This charger is more than 10% above the average power implied by EPA's own 240 V time, so treat EPA's time as the realistic figure.