Atlas battery pack reportedly built from 70 Samsung SDI cells
The Elec says each Boston Dynamics Atlas carries about 1.3 kWh from 70 Samsung SDI cells, with LG Energy Solution also chosen as a supplier.
Korean outlet The Elec reports that Boston Dynamics' Atlas humanoid runs on a pack of 70 Samsung SDI cells. Each is a 2170 cylinder, 21 mm wide and 70 mm long, rated at 5,000 mAh. Together they hold roughly 1.3 kWh. Samsung SDI is said to handle most of the early supply, helped by the small volumes involved, and LG Energy Solution has reportedly been selected as well.
Capacity alone does not say how long the robot can work. Runtime depends on the task, the load being carried, the movements and the computing on board. Boston Dynamics has said Atlas can walk to a charging station, swap its own batteries and go back to work, so spare packs and charging points matter as much as the pack itself.
Other makers are trying different routes. Agility aims for 90 minutes of work and nine minutes of fast charging on its next Digit, with a goal of more than 20 hours a day. XPENG says a solid-state battery for its IRON robot is in small-batch production. IDTechEx expects humanoid batteries to be a market of about $850 million by 2037.
Why it matters
Battery supply and charging decide whether a humanoid can finish a full shift. Boston Dynamics has not confirmed the cell count, supplier or capacity, and no runtime figures exist. Watch for official specifications and for real swap and charge times in factory trials.
