BMW F30 LCI 330e B48X Hybrid High Voltage Energy Storage Unit Module 7935320

BMW F30 LCI 330e B48X Hybrid High Voltage Energy Storage Unit Module is an original high-voltage system component designed for the hybrid version of the BMW 3 Series facelift model. The product comes from the BMW factory line, ensuring full structural compatibility with the vehicle's electrical installation and proper integration with the hybrid drive control electronics. Using a component of this type allows for a technically correct repair of the drivetrain while maintaining favorable service costs.

Specifications and technical data

• SKU: 7935320
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7935320
• Substitutable numbers: 7935320, 61257935320
• Category: Batteries

Purpose and role in the BMW 330e hybrid system

The traction battery in the BMW F30 LCI 330e B48X model is responsible for powering the electric motor and storing energy recovered during regenerative braking. It is a key element of the hybrid system that:

• stabilizes the operation of the electric drive in zero-emission driving mode,
• works in tandem with the B48X combustion unit in hybrid modes,
• ensures appropriate power and torque characteristics during acceleration,
• communicates with the vehicle's control modules within the factory BMW architecture.

Thanks to the use of an original battery from the Electric vehicle batteries group, proper integration with safety systems and on-board diagnostics is maintained.

Benefits of using an original BMW battery

Choosing a factory hybrid battery for the BMW F30 LCI 330e offers a number of practical advantages:

• Full compatibility with the vehicle's installation – no need for modifications to wiring harnesses, mounts, or controller software.
• Properly selected operating parameters – the battery was designed specifically for the characteristics of the B48X drive and the energy management strategy in this model.
• Consistency with high-voltage safety systems – maintaining factory procedures for disconnection, monitoring, and diagnostics.
• Possibility of proper service maintenance – compliance with BMW service procedures and diagnostic tools.

The used OEM component allows for rational reduction of repair costs while maintaining the design intended by the vehicle manufacturer.

Installation characteristics and vehicle integration

The hybrid battery designed for the BMW F30 LCI 330e B48X is structurally matched to the factory mounting points and high-voltage cable layout. In practice, this means:

• maintaining the original installation geometry in the F30 LCI body,
• correct routing of HV cables and signal connectors,
• compatibility with factory covers and protective elements,
• possibility of installation in accordance with BMW service documentation.

Such a fit reduces the risk of operational problems resulting from incorrect installation or the use of non-original solutions.

Product condition and use in service practice

The offered hybrid battery is a second-hand market component, which makes it an attractive option for repairing vehicles after collisions, high-voltage system failures, or when it is necessary to replace a worn-out traction module. This type of component is particularly useful for:

• workshops specializing in the service of BMW hybrid drives,
• individual users looking for a technically correct solution at a reasonable price,
• fleet companies that want to maintain vehicle efficiency at controlled operating costs.

Using an original hybrid battery allows for maintaining predictable vehicle behavior and proper cooperation with the factory control software.

Support in selecting used parts

When choosing a used traction battery for a hybrid BMW, it is worth approaching the issue of cost-effectiveness and quality consciously. A detailed discussion of the differences between new and used parts, along with an analysis of costs and durability, can be found in the article: Car parts – new or used? We compare costs, quality, and durability.

If you are planning a comprehensive repair or upgrade of the power supply area in your BMW and need other elements from the same group, such as energy storage modules, traction batteries, or high-voltage batteries, check the available parts in the BMW electric vehicle batteries category.