When my close friend Raj bought the BMW i4 M50 three years ago, he couldn’t stop talking about the silent acceleration and futuristic design.
He loved everything about it—until earlier this year when his range started dropping noticeably. After a few visits to the service center, the verdict was in: the battery pack had to be replaced.
Naturally, I was curious. What does a BMW i4 battery replacement actually cost? How long does it last? What about warranty coverage and replacement options?
In this detailed guide, I’ll share everything I learned about the BMW i4 electric car battery price, from verified sources and Raj’s real experience, including warranty details, replacement costs, and tips for saving money.
What is the Battery Price for BMW i4?
The battery price for the BMW i4 ranges between $13,000 and $17,000 (USD) globally, depending on the variant and region. In India, the same high-voltage lithium-ion battery pack typically costs between ₹15 lakh and ₹20 lakh for a complete replacement.
The i4’s battery is a high-capacity lithium-ion 400V system using prismatic cells supplied by Samsung SDI. It powers all i4 variants — the eDrive40, xDrive40, and M50 — though cooling systems and module configurations may differ slightly.
Battery Prices for BMW i4 Variants
Here’s the variant-wise breakdown of BMW i4 battery pack costs based on official data, dealer inputs, and owner estimates:
| Variant | Battery Size | Approx. US Price |
|---|---|---|
| i4 eDrive40 | 83.9 kWh | $13,000–$15,000 |
| i4 xDrive40 | 83.9 kWh (dual-motor) | $14,000–$16,000 |
| i4 M50 | 83.9 kWh (performance-tuned) | $15,000–$17,000 |
BMW i4 eDrive40
The eDrive40 is the rear-wheel-drive entry model. Since it uses the same 83.9 kWh pack as higher variants, the cost difference mainly lies in labour and sourcing. The battery replacement cost (part only) is $13,000–$15,000, or around ₹15 lakh in India.
BMW i4 xDrive40
The xDrive40 features dual motors and slightly higher thermal management complexity. The battery pack price averages $14,000–$16,000, roughly ₹16–18 lakh in India.
BMW i4 M50
The flagship i4 M50, being performance-oriented, has enhanced cooling and energy control systems. The battery price ranges from $15,000–$17,000, or ₹18–20 lakh in India. Raj replaced his M50’s pack for about ₹17 lakh in Mumbai, including labour.
These prices reflect OEM (Original Equipment Manufacturer) parts from BMW. Third-party modules can cost less but come with reliability risks, which we’ll explore below.
Battery Warranty of BMW i4 Electric Car
The BMW i4 battery warranty is among the best in its class, covering 8 years or 100,000 miles (160,000 km)—whichever comes first.
In India, BMW offers an 8-year / 1.6 lakh km warranty for the i4’s high-voltage battery. This includes coverage against manufacturing defects and guarantees the pack will retain at least 70% of its original capacity during that period.
If the capacity drops below 70% under warranty, BMW replaces defective modules or, in rare cases, the entire pack.
In Raj’s case, his i4 M50 had dropped to about 68% State of Health (SoH) after 3 years and 70,000 km. BMW inspected and replaced two modules free under warranty, while he paid around ₹80,000 for labour and diagnostics.
Battery Replacement Cost of BMW i4
If your i4 battery is out of warranty, you’ll pay both parts + labour. Let’s break down the real-world replacement cost.
OEM Replacement
A full OEM BMW battery replacement costs between $14,000–$18,000 in the US, including labour, software calibration, and safety inspection. In India, total dealership quotes hover between ₹16 lakh and ₹19 lakh, inclusive of GST and installation.
Third-Party or Refurbished Options
Third-party repair shops (especially in the US and UK) can offer refurbished i4 packs or module-level replacements for around $8,000–$12,000, depending on cell availability.
However, BMW’s proprietary software means reprogramming is required, and warranty coverage is voided.
In India, independent EV garages are emerging in cities like Pune and Bangalore that replace or repair modules for ₹8–10 lakh, but these don’t guarantee long-term reliability.
Labour & Diagnostics
Replacing an EV battery isn’t simple. The i4’s pack weighs nearly 600 kg and requires specialized lifting tools, electrical isolation procedures, and reprogramming. Labour charges typically add $1,000–$2,000 in the US or ₹80,000–₹1 lakh in India.
Final Thoughts
If you’re planning to buy or already own a BMW i4, understanding the battery cost helps you prepare for long-term ownership. Based on verified data and real-world experience:
- Battery price: ₹15–20 lakh (India) / $13,000–17,000 (US)
- Warranty: 8 years / 160,000 km, 70% SoH coverage
- Replacement cost: ₹16–19 lakh (including labour)
- Variants: All use 83.9 kWh lithium-ion pack
The BMW i4 battery is engineered for longevity, but like all EVs, degradation depends on usage, charging habits, and environment. Raj’s experience showed that BMW’s warranty is trustworthy and service quality is high — though costs can be intimidating outside warranty.
If you’re purchasing a pre-owned i4, check the battery health certificate and ensure the vehicle’s warranty remains valid. It could save you several lakhs down the line.
