BMW 545i Car and Truck Battery

BMW 545i Battery Replacement

The BMW 545i delivers classic V8 performance paired with refined luxury and advanced onboard electronics. A properly matched battery is critical to support ignition, comfort systems, and consistent voltage delivery.

Not sure which battery fits your BMW? Use our Battery Fitment Finder or read our blog: Which Car Battery Fits My Vehicle?  .

Best Batteries for BMW 545i

We recommend:

• X2Power AGM – premium AGM technology designed for luxury sedans with high electrical demand and voltage-sensitive systems
• Duracell Ultra AGM – dependable, maintenance-free power that meets BMW electrical requirements
• Optima – durable, vibration-resistant construction ideal for performance-oriented driving

All batteries include a free replacement warranty and are available at over 700 Batteries Plus locations.

Find your nearest store.

Lighting & Accessories for BMW 545i

Support safety, comfort, and long-term reliability with products from our Automotive Center:

• Replacement Light Bulbs – Restore headlight output, brake lights, turn signals, and interior lighting to maintain visibility and factory-level illumination
• Battery Maintainers – Ideal for vehicles driven infrequently or stored seasonally, helping prevent battery drain from onboard electronics
• Key Services – Select key cutting and replacement options available for compatible 5 Series model years