Battery options & usable capacity
BMW’s 2021 launch information gives 83.9 kWh gross and 80.7 kWh net for the referenced battery. The 80.7 kWh preset should not be applied to every subsequent i4 version.
| Reference configuration | Original usable capacity | Provenance |
|---|---|---|
| 2021 launch eDrive40 / M50 — 80.7 kWh net | 80.7 kWh83.9 kWh gross — separate figure | Manufacturer · Source |
Charging capability
The launch press release describes DC charging up to 200 kW and battery thermal preparation. Peak DC power is not an average; use the time calculator’s explicit taper assumptions or a verified vehicle curve.
| Reference | AC limit | DC peak |
|---|---|---|
| 2021 launch eDrive40 / M50 — 80.7 kWh net | Confirm fitted equipment | 200 kW |
Battery warranty
The cited launch release does not verify the warranty for your vehicle. Ask for original-market terms and any pack-replacement or repair documentation.
Things worth checking before purchase
- Confirm eDrive40 or M50 and the relevant build specification before using the capacity preset.
- Check tyre and wheel configuration when comparing real-world consumption.
- Ask the seller to demonstrate battery-preparation and charging functions supported by the car.
- Record battery warnings and any charging interruptions for professional assessment.
Turn the evidence into a useful estimate
Collect a full-charge range estimate and recent battery-side consumption from matching conditions. Select the exact reference in the calculator. Where usable capacity is not verified, enter it from the appropriate documentation. Original specifications remain separate from any diagnostic figure supplied by the seller.
EVVerity estimates are informational and are not a substitute for a professional battery diagnostic or pre-purchase vehicle inspection.
Manufacturer sources & scope
- BMW — first i4 launch technical information
2021-06-02 · checked 2026-09-23
Source verification means the cited statement was reviewed. It does not extend a historical specification to other years or markets. Missing values are intentionally not inferred.