BMW i4 Car and Truck Battery
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BMW i4 12V Battery Replacement
Although the BMW i4 is a fully electric vehicle, it still uses a 12V auxiliary battery to power electronics, computers, lights, climate systems, and safety features. A healthy 12V battery is essential for the vehicle to power on, even when the high-voltage battery is fully charged.
Not sure which 12V battery fits your BMW i4? Use our Battery Fitment Finder or read our blog: Which Car Battery Fits My Vehicle? .
Best 12V Batteries for BMW i4
- X2Power – premium AGM or lithium options ideal for EV accessory systems
- Duracell Ultra AGM – consistent voltage for advanced EV electronics
- Optima – strong long-term performance for garage-kept EVs
All batteries include a free replacement warranty and are available at 700+ Batteries Plus locations.
Lighting & Accessories for BMW i4
Support your EV with products from our Automotive Center:
- Replacement Light Bulbs for interior and exterior lighting
- Battery Maintainers designed for EV auxiliary systems
- Key Services for BMW key batteries
BMW i4 Battery FAQs
Yes. EVs still rely on a 12V battery for electronics and startup processes.
The vehicle may not power on, even if the high-voltage pack is charged.
Most trims use AGM for their auxiliary battery.