BMW VRLA / AGM 12V Accumulator Battery 80Ah 800A 9364593 7555719

BMW VRLA / AGM 12V Accumulator Battery 80Ah 800A is an original battery from the BMW Batteries group, designed to work with the modern electrical systems of the brand's vehicles. VRLA/AGM technology ensures stable starting parameters, high resistance to electrical loads, and predictable performance in advanced energy management systems.

Specifications and technical data

• SKU: 9364593
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9364593
• Substitutable numbers: 9364593, 61219364593, 7555719, 61217555719, KZ
• Weight: 150
• Category: Batteries

VRLA / AGM technology in BMW batteries

The battery utilizes AGM (Absorbent Glass Mat) technology, in which the electrolyte is absorbed into glass fiber separators. The VRLA (Valve Regulated Lead Acid) solution limits electrolyte evaporation and allows for more controlled operation across a wide temperature range. This type of construction is particularly beneficial in vehicles equipped with extensive onboard electronics, start-stop systems, and numerous power consumers.

Compared to classic lead-acid batteries, AGM is characterized by better resistance to deep discharges, more stable voltage under load, and higher tolerance for frequent charge and discharge cycles. This allows the battery to work effectively with the alternator, energy management modules, and safety systems in BMW cars.

Compatibility with BMW electrical systems

The presented battery has been developed as an element of the BMW vehicle power supply system, which means starting and capacity parameters are appropriately matched to the requirements of the engines and electronics. Proper matching to the installation reduces the risk of voltage drops, controller errors, or unstable operation of comfort and safety systems.

The product has a dedicated OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration. In practice, this means the ability to precisely select a battery based on service documentation or the manufacturer's catalog, without the need for universal solutions.

Performance characteristics and operational parameters

The BMW AGM battery provides high starting current, which translates into more reliable engine starting in varied weather conditions. The applied technology limits the risk of electrolyte stratification and improves voltage stability under heavy load, which is essential when multiple consumers are operating simultaneously, such as heating, audio systems, lighting, or power steering systems.

The VRLA/AGM construction also promotes more uniform cell wear, which in practice can translate into a predictable decline in performance over time, rather than a sudden loss of starting capacity. The appropriately selected battery weight is a result of the technology used and the amount of active material, which is significant for both durability and stability of operation in the mounting compartment.

Product condition and service application

The offered battery is in the category of used BMW components, making it a cost-effective solution compared to new parts. It can be used as a replacement in vehicles where maintaining AGM/VRLA technology is required, for example, after the failure of the existing power source or during major service work within the electrical system.

Before installation, a standard diagnostic procedure is recommended, as well as, if necessary, registering the battery in the vehicle's system in accordance with the manufacturer's guidelines. This allows for the proper adjustment of the charging strategy by the controller and optimal use of the available capacity in daily operation.

Support in selection and configuration expansion

If you are planning a comprehensive repair or upgrade of the electrical power zone in your BMW and need other elements from the same group, such as batteries with similar technology, units with different capacities, or variants with different starting parameters, check the available parts in the BMW Batteries category.

For extensive modernization projects, such as changing rims or improving the overall appearance of the vehicle, a practical guide on the regeneration and purchase of aluminum rims may be helpful – you can find it in the article Used rims like new: a guide to buying and regenerating aluminum rims, which allows you to better plan service and aesthetic work on your car.