BMW iX Battery Health Calculator

Calculate your BMW iX's remaining battery capacity and check it against original specifications.

BMW iX — At a Glance

Battery Capacity

71–109.1 kWh

Chemistry

NMC

WLTP Range

246382 mi

Real-World Range

200320 mi

Max DC Charging

200 kW

10–80% DC Time

~31 min

Power

523 bhp (385 kW)

0–62 mph

4.6s

Kerb Weight

2,440 kg

Thermal Mgmt

Active liquid cooling

On Sale Since

2022

Variants

4 (2022–2025)

Enter your BMW iX energy data below to calculate your battery's current health.

Your readings

  1. 1

    From the on-screen energy app — a recent average is fine.

  2. 2

    The range your car is estimating right now.

  3. 3

    The battery percentage shown on the display.

Your vehicle

kWhNMC
mi

Battery health

ExampleNMC
94%state of health

102.7 kWh usable of 109 kWh when new · 5.9% capacity lost

102.7 kWh now109 kWh when new

Healthy — typical for a well-kept iX. Add your odometer to compare against the fleet.

Add your odometer above to see how you compare to the fleet.

Battery degradation curve

iX estimated average

NMC
Liquid cooled
70%75%80%85%90%95%100%050k100k150k200kMileage (miles)Warranty minimum (70%)
Expected degradationWarranty thresholdEstimated · based on NREL & published fleet research

These curves are aggregated, owner-reported degradation data — not official manufacturer figures. Your own result above is the number that matters.

How to find these values on your BMW

Wh/mi or Wh/km

Swipe left on the curved display to the "Efficiency" widget — tap it for a bar chart showing kWh/100 km split by Climate, Drivetrain and Auxiliaries. Or go to "My Car" → "Trip Info" for average consumption per trip. On the i3, use the iDrive controller: "Vehicle Info" → "Trip Computer" → "Consumption".

Estimated Range

Always shown in the instrument cluster next to the battery gauge. On iDrive 8+ models you can also tap the battery icon on the home screen for a range map adjusted to terrain and driving style.

Battery Percentage

Visible in the instrument cluster beside the battery gauge. Tap the battery icon on the home screen for exact percentage and charging status. If you see range instead of %, go to "My Car" → "Settings" → "Units" and switch to percentage.

BMW iX battery degradation — what to expect

4 variants

In our database

We track 4 variants of the BMW iX with usable capacity data for each.

71–109.1 kWh

Capacity range

Usable battery capacity varies by trim and model year — from 71 to 109.1 kWh.

8 years

Typical warranty

Most EV manufacturers offer an 8-year battery warranty with a minimum capacity retention guarantee.

Battery degradation varies by chemistry, climate, charging habits, and usage patterns. Use the calculator above to check your BMW iX's current capacity against its original specification.

BMW iX battery capacity by variant

These are the usable (not gross) capacity figures used by our calculator.

VariantYearsCapacity (kWh)
xDrive 402022-202571
xDrive 452024-202594.8
xDrive 602022-2025109.1
M70 xDrive2023-2025108.9

Values may vary slightly by market, software version, and production batch.

About the BMW iX

The BMW iX is BMW's flagship electric SUV and represents a bold design statement. Available with battery packs ranging from 71 kWh (xDrive 40) to 109 kWh (xDrive 60 and M70), it offers WLTP range from 246 to 382 miles depending on the variant. The top-spec M70 produces 619 bhp and reaches 62 mph in 3.8 seconds — extraordinary for a large SUV.

DC charging peaks at 195-200 kW, enabling a 10-80% charge in around 31 minutes on a fast charger. The active liquid cooling system maintains consistent battery performance across a wide temperature range. BMW's fifth-generation eDrive technology provides refined, near-silent power delivery.

Inside, the iX showcases BMW's latest cabin design with sustainable materials, a curved display panel, and crystal controls. The ride is comfortable on air suspension, and the spacious interior can accommodate four adults in considerable luxury. The polarising exterior design drew strong reactions at launch, though most reviewers agree it looks better in person than in photographs.

Competing against the Mercedes EQE SUV, Audi Q8 e-tron, and Tesla Model X, the iX is well positioned as a technology flagship that also works as a practical family SUV.

What the press thinks

The iX has won over many initial sceptics with its impressive range, refined driving manners, and luxurious interior. The design remains divisive, but the technology underneath is universally praised. The M70 variant is considered one of the fastest large SUVs of any powertrain.

BMW iX — Frequently Asked Questions

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