eDrive40 · 81.5 kWh usable · 205 kW DC peak
Charging a 2024 BMW i4 from 10% to 80% takes about 31 min at its 205 kW DC peak, or 5 hr 46 min at 11.0 kW on a home charger. At $0.17/kWh, that 70% top-up costs $10.32 on DC and $10.78 at home.
J1772 AC port · CCS1 DC port · Adapter: NACS to CCS1 Adapter · 7 compatible units
2024 BMW i4 eDrive40 · 81.5 kWh
11.0 kW average at the plug · 90% charging efficiency · $3.35 per 100 km
DC time is modelled on the vehicle’s verified 31-minute 10–80% figure, including its taper curve — not a flat peak-power division.
Reference
A standard 10–80% stop, priced at $0.17/kWh. The same engine powers the calculator above — change the sliders there for any window.
| Charger | Power | 10→80% | Cost |
|---|---|---|---|
| Level 1 wall outlet 1.4 kW | 1.4 kW | 48 hr 31 min 57.0 kWh added | $11.55 |
| Level 2 home charger 7.4 kW | 7.4 kW | 8 hr 34 min 57.0 kWh added | $10.78 |
| Level 2 home charger 11.0 kW | 11.0 kW | 5 hr 46 min 57.0 kWh added | $10.78 |
| DC fast charger 205.0 kW | 205.0 kW | 31 min 57.0 kWh added | $10.32 |
Level 1 figures assume a 1.4 kW household outlet at 84% efficiency. Level 2 and DC figures use 90% and 94% respectively. DC time follows the car’s verified 10–80% figure of 31 minutes, including taper.
Running costs
All three numbers use the same $0.17/kWh tariff and the 11.0 kW onboard charger — the realistic home ceiling, not the DC headline.
Full charge (0→100%)
$15.39
90.6 kWh drawn at the meter, about 8 hr 14 min on a home charger.
Electricity per 100 mi
$5.40
28.6 kWh / 100 mi at the battery. 285 mi of rated range from a full pack.
Monthly home cost
$53.97
1,000 miles a month at home: 317 kWh at the meter.
DC fast charging typically costs two to three times more per kWh than home charging, so the session price above is the floor, not the average. If your utility offers a time-of-use tariff, schedule the car overnight and use the off-peak rate in the calculator.
Tesla network access for this exact model
Use an approved NACS-to-CCS1 adapter on V3 and V4 stalls.
Buy the right part the adapter must match your car’s CCS1 port, not the stall. Only units rated for 205 kW DC and listing NACS to CCS1 Adapter are shown in the compatible hardware section below. Jump to matching adapters
Compatibility engine
Filtered from 16 verified units by J1772 port, the 11.0 kW onboard charger limit and NACS to CCS1 Adapter.
Autel · Home Level 2 Charger
Lectron · Supercharger Adapter
Emporia · Home Level 2 Charger
A2Z EV · Supercharger Adapter
Grizzl-E · Home Level 2 Charger
Lectron · Portable Charger
Schumacher · Portable Charger
Physical match, not a paid placement: every AC unit must carry the car’s connector, and an adapter is only listed when the vehicle declares one is required. Units far above 11.0 kW are marked amber — they work, but the car caps them. We may earn a commission from these links.
The physics
The i4 carries 81.5 kWh of usable capacity, so a 10–80% window moves 57.0 kWh into the pack. That usable figure — not the gross capacity on the spec sheet — is what every time and cost here is built from, because the buffer above and below the usable window is never charged.
On AC the ceiling is the onboard charger: 11.0 kW through a J1772 port. A 48 A wallbox rated at 11.5 kW cannot push more than 11.0 kW into this car, which is why a bigger home charger is not an upgrade.
On DC the 205 kW peak only holds for part of the session. We calibrate a taper curve to the verified 31-minute 10–80% time, so a 20–90% session, a 10–60% splash-and-go and a full charge are all modelled with the right shape instead of a flat peak-power division.
At 3.5 mi/kWh, 100 miles needs about 28.6 kWh at the battery and 31.7 kWh at the meter — roughly $5.40 of home electricity. That running cost, not the charger price, is the number that compounds every month.
About 31 min on a DC fast charger at the car’s 205 kW peak — that is the 31-minute 10–80% figure the manufacturer publishes and the one this calculator models. At 11.0 kW on a Level 2 home charger, the same 10–80% window takes roughly 5 hr 46 min.
At $0.17/kWh, a 20–80% home session adds 48.9 kWh to the 81.5 kWh usable pack and costs about $9.24. Charging from empty to full costs roughly $15.39 at the same tariff — about 90.6 kWh drawn at the meter.
Yes. The BMW i4 uses a CCS1 DC port, so Tesla Superchargers need a NACS to CCS1 Adapter. Tesla lists the BMW BMW i4 as adapter-compatible on V3 and V4 stalls; keep the adapter in the car rather than in the garage.
The i4 has a J1772 AC port and accepts up to 11.0 kW. Any J1772 Level 2 charger will work; a unit rated above 11.0 kW is safe but the car will never draw more than that. This page lists 7 verified J1772 units, each checked against the port and the onboard charger limit.
At $0.17/kWh and 3.5 mi/kWh, 100 miles needs about 28.6 kWh at the battery and roughly 31.7 kWh at the meter, so about $5.40 — or $3.35 per 100 km. DC fast charging usually costs more per kWh than charging at home.
Cars closest to the BMW i4 on usable pack size and DC speed — compare before you commit.
2024 · eDrive40
2024 · SEL AWD
2024 · Long Range SE RWD
2024 · GT-Line AWD
2024 · 50 quattro
2024 · 2LT FWD
Side-by-side charging speed, pack size, and running cost breakdown.
Change the start and target state of charge, swap chargers and see the cost update instantly.