Tesla has revealed that the Cybercab’s battery pack was designed from the beginning to accommodate lithium iron phosphate (LFP) cells, giving the company flexibility to change battery chemistry as production increases.
The detail comes from a Munro Live factory tour, where Tesla’s battery engineering team provided a closer look at the 4680 battery cells and modular architecture used in the Cybercab.
According to Tesla, the current battery pack uses an 88S6P configuration, with 88 groups of six cells connected in parallel.
However, the engineers explained that the battery enclosure contains additional room for cells, along with unused space beneath the modules.
That extra space was intentional, allowing Tesla to accommodate battery chemistries with lower energy density without requiring a complete redesign of the pack.
Tesla specifically identified LFP as a chemistry it wants to bring to the platform as production scales.
However, the Cybercab currently only features 4680 cells. Tesla announced its first Cybercab built with nickel cathode material produced at its Austin facility in September. That milestone was part of Tesla’s efforts to bring more of its battery supply chain in-house, including production of cathode materials used in its 4680 cells.
As we told you earlier, the video also revealed that the Cybercab does not have a fully structural battery pack the company has used in some Model Ys and Cybertrucks. Instead, Tesla has adopted a modular design that allows individual battery sections to be replaced without discarding the entire pack.
Engineers explained that the change was driven by manufacturing costs, reliability and the need to keep Robotaxis operating for extended periods.
You can watch the full deep dive video below.
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