Tesla Plans 4 New Batteries In 2026, Including For a Robotaxi

Effort comes four years after CEO Elon Musk introduced the new battery, known as the 4680

A Tesla Cybertruck, which uses its 4680 battery. Photo by Bloomberg via Getty

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Tesla has embarked on an ambitious effort to design four new versions of its in-house battery to power the Cybertruck, its forthcoming Robotaxi and other electric vehicles, according to people with direct knowledge of its plans.

This is the most battery projects the company has worked on simultaneously. The projects come four years after CEO Elon Musk first outlined plans for Tesla’s next battery line, known as the 4680 because each cylindrical battery cell would be 46 millimeters in diameter and 80 millimeters long. At the time, Musk said the 4680 would allow Tesla to make a $25,000 EV.