BMW i4 G26 eDrive35 HA0 Electric Drive Combined Charging Battery Inverter

BMW i4 G26 eDrive35 HA0 Electric Drive Combined Charging Battery Inverter is a specialized powertrain component designed for electric BMW i4 series models. This component is responsible for precise control of energy flow between the traction battery, the charging system, and the electric motor, ensuring stable drive operation and high energy efficiency. Thanks to its factory origin from BMW, it serves as a cohesive element of the vehicle's high-voltage architecture.

Specifications and technical data

• SKU: 5A73E28
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A73E28
• Category: Other Electric, Hybrid & PHEV Specific Parts

Purpose and function in the BMW i4 powertrain

The electric drive inverter integrated with the charging module and battery in the BMW i4 G26 eDrive35 plays a key role in managing high-voltage energy. It is responsible for:

• converting electrical energy between the battery and the traction motor,
• cooperating with the AC/DC charging system as part of the integrated Combined Charging system,
• controlling drive performance parameters depending on load and driving mode,
• communicating with other vehicle control units within the high-level network.

As a result, the entire BMW i4 powertrain maintains stable performance, and energy management remains optimized for range and dynamics.

Benefits of using an original BMW component

Using the original inverter from the BMW i4 G26 eDrive35 electrical system ensures full compatibility with the factory vehicle architecture. This means:

• maintaining the operating parameters specified by the manufacturer,
• proper cooperation with the traction battery and charging system,
• consistency with the high-voltage control unit software,
• minimization of communication error risks within the vehicle network.

This solution is particularly important for electric vehicle repairs, where each module is strictly linked to other components of the high-voltage system.

Characteristics of the used component

The offered inverter comes from the segment of used BMW components, which allows for cost-effective powertrain repair while maintaining the original design. This type of component is a good choice in situations where:

• it is necessary to replace a damaged module in an existing vehicle,
• maintaining the factory configuration of the electrical system is a priority,
• optimizing service costs while using OEM parts is important.

Before installation, it is recommended to verify compatibility with the specific equipment version and vehicle software, in accordance with BMW service procedures.

Integration with the high-voltage installation

The BMW i4 G26 eDrive35 electric drive inverter is designed to work in close integration with the traction battery, HV cables, and the cooling system. In practice, this means:

• dedicated high-voltage and communication connectors,
• adaptation to operate within specific operating temperature ranges,
• cooperation with the vehicle's HV safety system,
• support for driving modes and recuperation in accordance with BMW control logic.

Professional installation and configuration combined with diagnostics are crucial for the safe operation of an electric vehicle after replacing this module.

If you are planning a comprehensive repair or upgrade of the electric drive area in your BMW and need other components from the same group, such as control modules, high-voltage components, or energy management elements, check the available parts in the Other BMW category.

Technical support and electronics selection

When working with advanced electric vehicle electronics, it is worth using up-to-date knowledge regarding the selection, programming, and diagnostics of modules. Practical tips on working with used controllers and electronic modules can be found in the Global Parts guide: used automotive electronics on board – ECU modules and second-hand sensors.

For a comparison of the characteristics of sports powertrains and braking systems with solutions used in standard model versions, you can also read the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers differentiate the design of key components.