BMW Banner EFB Start Stop Accumulator Battery 70Ah 700A 12V 6991365 6992187

BMW Banner EFB Start Stop Accumulator Battery 70Ah 700A 12V is an original component from the Batteries group, designed for BMW vehicles equipped with a start-stop system and a 12V electrical installation. The EFB construction ensures stable starting parameters and predictable performance under conditions of frequent engine restarts.

Specifications and technical data

• SKU: 6991365
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6991365
• Substitutable numbers: 61216991365, 6991365, 61216992187, 6992187
• Weight: 150
• Category: Batteries

EFB technology and application in start-stop systems

The battery using EFB (Enhanced Flooded Battery) technology has been designed for vehicles with a start-stop system, where resistance to frequent charge and discharge cycles is crucial. Compared to classic lead-acid batteries, the EFB solution is characterized by increased cyclic durability and stable voltage maintenance under high electrical load.

Thanks to the appropriately selected capacity and cold cranking amps, the battery ensures a reliable start of the power unit, even with extensive onboard electronics. This is particularly important in modern BMW models, where comfort, safety, and multimedia systems generate high energy demand.

Original BMW fitment and reference numbers

The presented battery is a component intended for use in BMW vehicles, which translates into a proper fit for factory electrical system parameters and the charging system. Appropriate OEM part numbers and interchangeable numbers allow for precise identification by VIN or the manufacturer's catalog, minimizing the risk of selecting the wrong component.

In practice, this means that the battery works with the factory charging control, and its operating characteristics are consistent with the vehicle manufacturer's requirements. This is important both from the point of view of starting reliability and the service life of the entire power supply system.

Performance parameters and mounting aspects

The battery offers a capacity adapted to premium class cars with extensive electronics and a cold cranking current ensuring reliable engine starting in various temperature conditions. The use of EFB construction promotes stable operation during frequent use of the start-stop function, as well as during intensive vehicle use in city traffic.

In terms of mounting, the battery is intended for installation in the place of the factory BMW battery. The appropriate geometry of the housing and terminals facilitates replacement in service conditions, and the properly selected weight is consistent with the vehicle's design assumptions, which is important for weight distribution and driving characteristics.

Product condition and economic benefits

The item is offered as a used part, which allows for reducing service costs compared to purchasing a new battery while maintaining compliance with the vehicle manufacturer's requirements. For many BMW users, this is a reasonable compromise between price and functionality, especially in the case of intensively operated vehicles, where periodic battery replacement is a natural part of maintenance.

If you want to better understand the differences between original, replacement, and used parts, as well as analyze the cost-effectiveness of individual solutions, it is worth reading the article: Original, replacement, or used – which car parts are the most cost-effective?.

Expanding the power supply system in BMW

If you are planning a comprehensive repair or upgrade of the electrical power supply area in your BMW and need other elements from the same group, such as additional auxiliary batteries, energy storage units, or specialized starting solutions, check the available parts in the BMW Batteries category.