How long to charge a BMW i4 at home
Typical trim (i4 eDrive40 Gran Coupe (19 inch Wheels)): 32.3 kWh/100 mi · EPA range 295 mi · on a 48 A (11.5 kW) charger about 36 mi of range per hour*
EPA lists a 240 V full-charge time of 10 h for this trim, which implies an average of roughly 9.5 kW (our estimate, = 95 kWh ÷ 10 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 | 36 mi | 66.2 h |
| 16 A at 240 V (3.8 kW) | 12 mi | 95 mi | 24.8 h |
| 24 A at 240 V (5.8 kW) | 18 mi | 143 mi | 16.5 h |
| 32 A at 240 V (7.7 kW) | 24 mi | 190 mi | 12.4 h |
| 40 A at 240 V (9.6 kW) | 30 mi | 238 mi | 9.9 h |
| 48 A at 240 V (11.5 kW) | 36 mi | 285 mi | 8.3 h |
| 64 A at 240 V (15.4 kW) | 48 mi | 380 mi | 6.2 h |
| 80 A at 240 V (19.2 kW) | 59 mi | 476 mi | 5.0 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 13 trims (EPA data)
| Trim | kWh/100 mi | EPA range | EPA 240 V charge time | Energy for full range (est.) | Source |
|---|---|---|---|---|---|
| 2026 i4 eDrive40 Gran Coupe (18 inch wheels) | 28.5 | 333 mi | 9 h | 95 kWh | record 50188 |
| 2025 i4 eDrive35 Gran Coupe (18 inch Wheels) | 29.2 | 266 mi | 8 h | 78 kWh | record 48308 |
| 2025 i4 eDrive40 Gran Coupe (18 inch wheels) | 30.2 | 318 mi | 10 h | 96 kWh | record 48310 |
| 2026 i4 eDrive35 Gran Coupe (19 inch Wheels) | 30.8 | 251 mi | 7 h | 77 kWh | record 50187 |
| 2026 i4 eDrive40 Gran Coupe (19 inch Wheels) | 31.1 | 307 mi | 9 h | 95 kWh | record 50189 |
| 2025 i4 eDrive35 Gran Coupe (19 inch Wheels) | 31.7 | 244 mi | 8 h | 77 kWh | record 48309 |
| 2025 i4 eDrive40 Gran Coupe (19 inch Wheels) | 32.3 | 295 mi | 10 h | 95 kWh | record 48311 |
| 2026 i4 xDrive40 Gran Coupe (18 inch Wheels) | 33.4 | 287 mi | 8 h | 96 kWh | record 50192 |
| 2026 i4 M60 xDrive Gran Coupe (19 inch Wheels) | 34.4 | 278 mi | 9 h | 96 kWh | record 50190 |
| 2025 i4 M50 Gran Coupe (19 inch wheels) | 35.9 | 267 mi | 10 h | 96 kWh | record 48312 |
| 2026 i4 xDrive40 Gran Coupe (19 inch Wheels) | 36 | 268 mi | 8 h | 96 kWh | record 50193 |
| 2026 i4 M60 xDrive Gran Coupe (20 inch Wheels) | 41.4 | 232 mi | 9 h | 96 kWh | record 50191 |
| 2025 i4 M50 Gran Coupe (20 inch wheels) | 42.2 | 227 mi | 10 h | 96 kWh | record 48313 |
Source: fueleconomy.gov vehicle records (2025, 2026 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 |
|---|---|---|---|---|---|---|
| 2026 i4 eDrive40 Gran Coupe (18 inch wheels) | 12.4 h | 9.9 h | 8.2 h | 4.9 h† | 9 h | EPA time implies ≥10.5 kW average, so a 48 A charger should beat a 40 A one. |
| 2025 i4 eDrive35 Gran Coupe (18 inch Wheels) | 10.1 h | 8.1 h | 6.7 h† | 4.0 h† | 8 h | EPA time implies 9.7 kW average; EPA data alone can't say whether it accepts more. Check the manual. |
| 2025 i4 eDrive40 Gran Coupe (18 inch wheels) | 12.5 h | 10.0 h | 8.3 h† | 5.0 h† | 10 h | EPA time implies 9.6 kW average; EPA data alone can't say whether it accepts more. Check the manual. |
| 2026 i4 eDrive35 Gran Coupe (19 inch Wheels) | 10.1 h | 8.1 h | 6.7 h | 4.0 h† | 7 h | EPA time implies ≥11.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i4 eDrive40 Gran Coupe (19 inch Wheels) | 12.4 h | 9.9 h | 8.3 h | 5.0 h† | 9 h | EPA time implies ≥10.6 kW average, so a 48 A charger should beat a 40 A one. |
| 2025 i4 eDrive35 Gran Coupe (19 inch Wheels) | 10.1 h | 8.1 h | 6.7 h† | 4.0 h† | 8 h | EPA time implies 9.7 kW average; EPA data alone can't say whether it accepts more. Check the manual. |
| 2025 i4 eDrive40 Gran Coupe (19 inch Wheels) | 12.4 h | 9.9 h | 8.3 h† | 5.0 h† | 10 h | EPA time implies 9.5 kW average; EPA data alone can't say whether it accepts more. Check the manual. |
| 2026 i4 xDrive40 Gran Coupe (18 inch Wheels) | 12.5 h | 10.0 h | 8.3 h | 5.0 h† | 8 h | EPA time implies ≥12.0 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i4 M60 xDrive Gran Coupe (19 inch Wheels) | 12.5 h | 10.0 h | 8.3 h | 5.0 h† | 9 h | EPA time implies ≥10.6 kW average, so a 48 A charger should beat a 40 A one. |
| 2025 i4 M50 Gran Coupe (19 inch wheels) | 12.5 h | 10.0 h | 8.3 h† | 5.0 h† | 10 h | EPA time implies 9.6 kW average; EPA data alone can't say whether it accepts more. Check the manual. |
| 2026 i4 xDrive40 Gran Coupe (19 inch Wheels) | 12.6 h | 10.1 h | 8.4 h | 5.0 h† | 8 h | EPA time implies ≥12.1 kW average, so a 48 A charger should beat a 40 A one. |
| 2026 i4 M60 xDrive Gran Coupe (20 inch Wheels) | 12.5 h | 10.0 h | 8.3 h | 5.0 h† | 9 h | EPA time implies ≥10.7 kW average, so a 48 A charger should beat a 40 A one. |
| 2025 i4 M50 Gran Coupe (20 inch wheels) | 12.5 h | 10.0 h | 8.3 h† | 5.0 h† | 10 h | EPA time implies 9.6 kW average; EPA data alone can't say whether it accepts more. Check the manual. |
† 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.