The battery in BMW electric cars, model by model
8 models listed. For each one: the battery versions, the manufacturer warranty, the state of health to expect for its age, and what a failure costs out of warranty.
Pierre-Selim Huard · CC BY 4.0 · Wikimedia Commons BMW i3
2013 – 2022Replacing one module€600 – €1,800
Alexander Migl · CC BY-SA 4.0 · Wikimedia Commons BMW i4
since 2021Replacing one module€950 – €2,600
M 93 · CC BY-SA 3.0 de · Wikimedia Commons Pack cannot be repaired module by moduleBMW i5
since 2023
Calreyn88 · CC BY-SA 4.0 · Wikimedia Commons Pack cannot be repaired module by moduleBMW i7
since 2022
Mr.choppers · CC BY-SA 3.0 · Wikimedia Commons Pack cannot be repaired module by moduleBMW iX
since 2021
Wikisympathisant · CC BY-SA 4.0 · Wikimedia Commons Pack cannot be repaired module by moduleBMW iX1
since 2022
Chanokchon · CC BY-SA 4.0 · Wikimedia Commons Pack cannot be repaired module by moduleBMW iX2
since 2024
Evnerd · CC BY-SA 4.0 · Wikimedia Commons BMW iX3
since 2020Replacing one module€900 – €2,500
BMW battery warranty, model by model
Manufacturer terms recorded for the UK, by year of first registration. Years and mileage apply whichever comes first; below the guaranteed capacity, the pack is repaired or replaced.
| Model | First registered | Duration | Mileage | Guaranteed capacity |
|---|---|---|---|---|
| BMW i3 | 2013 – 2022 | 8 years | 100,000 miles | not stated |
| BMW i4 | since 2021 | 8 years | 100,000 miles | 70% |
| BMW i5 | since 2023 | 8 years | 100,000 miles | 70% |
| BMW i7 | since 2022 | 8 years | 100,000 miles | 70% |
| BMW iX | since 2021 | 8 years | 100,000 miles | 70% |
| BMW iX1 | since 2022 | 8 years | 100,000 miles | 70% |
| BMW iX2 | since 2024 | 8 years | 100,000 miles | 70% |
| BMW iX3 | since 2021 | 8 years | 100,000 miles | 70% |
For a specific car, the battery checker gives the warranty end date. Compare with every brand.
What to know about BMW batteries
The catalogue covers 8 BMW electric models, on sale since 2013. The packs recorded use NMC cells, which largely decides how quickly capacity falls.
Battery warranty. The terms recorded for BMW are 8 years, up to 100,000 miles, with a guaranteed minimum capacity of 70%. These terms depend on the date of first registration, not on the model alone: the checker gives the end date for a specific car.
Cost of a failure. 3 of the 8 models can be repaired module by module rather than by a full replacement, for between €600 and €2,600 depending on the model, whereas a new pack is priced at around €11,000 to €17,000. These are orders of magnitude recorded in France, never quotes.