Figure AI, a California-based robotics company, introduced its third-generation battery for its latest F03 humanoid robot, marking a significant step in its in-house hardware development.
The new battery offers 2.3 kWh of energy, supports five hours of peak performance runtime, and includes built-in safety systems to prevent thermal runaway. The battery is manufactured entirely in-house at Figure’s BotQ facility, which is now ramping up production capabilities.
Today we're introducing our next generation humanoid battery for F.03
— Figure (@Figure_robot) July 17, 2025
Like our actuators, vertically integrating our battery system is critical to Figure’s success
Engineered in-house and manufactured at BotQ pic.twitter.com/lw81dXZ9qO
Founder Brett Adcock said in a LinkedIn post that Figure “succeeds when we own the full stack,” with every core system, including actuators and batteries, engineered and built internally.
The battery is the first in the humanoid robotics space to be in the process of securing both UN38.3 and UL2271 safety certifications.
The F03 battery is directly integrated into the robot’s torso, unlike the earlier external battery packs of the F01. It utilises structural components such as stamped steel and die-cast aluminium, allowing it to act as a load-bearing part of the robot and saving space and weight.
The company claims a 94% increase in energy density over its first-generation battery and a 78% cost reduction compared to the previous F.02 model. The battery’s structural and thermal design features active cooling, a flame arrestor vent, and a custom Battery Management System (BMS) that helps prevent fault conditions, such as overheating or short circuits.
The battery is manufactured using mass production techniques, including stamping, injection moulding, and die casting, which enables Figure to target production volumes of up to 12,000 humanoid units per year.
To support manufacturing scale-up at its BotQ facility, Figure has opened roles across several verticals, including software test engineering, electrical testing, manufacturing engineering, and equipment handling.
Recently, Adcock had also said that the company has tripled the team to 293 people to support manufacturing, supply chain, and fleet operations.
According to the company’s blog, Figure has collaborated with OSHA-accredited testing labs to establish safety standards for humanoid robots, as these standards did not previously exist. “We specified that the battery system of F.03 must not emit flames should a catastrophic failure of a single cell occur,” Figure said.
