Mercedes-Benz Unveils Battery Cell Power Converter
The technology uses software-controlled micro-converters to manage each battery cell individually for high-voltage output.
Updated on Nov. 11, 2026 in Electric Vehicles
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Mercedes-Benz has announced a power converter technology for electric vehicles that uses software-controlled micro-converters to charge or discharge each battery cell individually. The system maintains a constant high-voltage output of up to 800 volts regardless of cell charge state or age.
Why it matters
Traditional EV batteries charge and discharge as a single linear unit, while this approach decouples high-voltage output from the battery cell architecture. The design could enable smaller EV architectures and improve modularization during vehicle assembly.
The power converter sustains up to 800 volts of constant output, independent of individual cell charge state or age. Independent validation of this specification and of the promised range and efficiency gains has not been reported.
The players
Mercedes-Benz
Mercedes-Benz is a German luxury automotive brand and division of Mercedes-Benz Group AG, known for premium vehicles and a growing electric vehicle lineup.
The details
Each battery cell is charged or discharged individually by a micro-converter controlled by software, so high-voltage requirements are decoupled from the battery architecture and power flows only when a cell needs it. The announcement promises improved range and efficiency, though no specific figures for those gains were provided.
Timeline
November 11, 2026: Mercedes-Benz announcement of the power converter technology reported.
Roadmap
Most electric vehicles today rely on battery packs that charge and discharge as one linear unit, a design that constrains vehicle architecture. Mercedes-Benz's cell-level micro-converter approach departs from that model by decoupling voltage control from pack construction.
If adopted, a cell-level converter design could influence the size and packaging of future electric vehicles that buyers consider. The range and efficiency gains described are projections and have not yet been quantified.
The takeaway
Battery architecture is becoming a lever for vehicle design as well as energy storage. Readers tracking EV range and packaging should watch for independent verification of these claims.
Further reading
For more on how battery and drivetrain designs are evolving, explore the Electric Vehicles section.
Source note: This article includes information reported by Driving.
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