Optimus battery pack, 2.3 kWh
Tesla's own battery pack in the Optimus torso, with its control electronics built into the pack.
In-houseMade by the robot's own company for its robots. Not sold to anyone else.
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Why this price
Tesla makes the Optimus battery itself and does not sell it, so this is not its price. It is the price of comparable battery packs a builder can buy. The range comes from the two listed smart lithium packs of about 2.1 to 2.3 kWh at about 50 V: a DJI drone battery at US$4,088 and Unitree's B2 robot dog battery at US$5,000, both at Maverick Drone.
Our own figure, not a price from any company.
Based on: Maverick Drone, Unitree B2 Standard Battery (maverickdrone.com)
How to get it
In-houseIt cannot be bought on its own. To get one, you would buy a robot that has it, from the list below. Comparable parts you can buy, with their prices, are listed further down.
Tesla Q3 2025 earnings call transcript, Stock Analysisstockanalysis.com
Comparable parts you can buyNot the confirmed part
3 products, scroll sideways
Products on public sale that do the same job, with why each is similar and where to buy it. None is confirmed to be the part inside these robots.
Unitree B2 Standard Battery
Close matchby Unitree
45 Ah, 2,250 Wh rated, so about 50 V, up to 15 A charging, swappable
Why it's similar. A swappable robot battery of 2,250 Wh, almost exactly the same energy, built for a heavy legged robot.
Where to buy
Maverick DroneUS$5,000.00Buy
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