The UBTECH Walker S2 is described as the world’s first humanoid robot capable of autonomous battery swapping, featuring a dual-battery dynamic balancing system with dual-arm coordinated precision battery swapping that completes in under 3 minutes for 24/7 continuous operation. It supports switching between dual-battery and single-battery modes with real-time monitoring and intelligent power management, autonomously choosing between battery swap or charge based on task priorities. An innovative high-power high-torque waist servo motor lifts 15 kg payload with ±162-degree rotation angle for ground-reaching flexibility. A whole-body human-like dynamic balancing algorithm enables 125-degree deep squat and stoop lifting with 15 kg payload within 0 to 1.8 m workspace. Pure RGB binocular stereo vision in the head uses a self-developed passive binocular system with deep learning stereo depth estimation for real-time high-precision dense depth maps. The world’s first industrial agent for humanoid robots, Co-Agent, combines with BrainNet 2.0 to form a dual-loop AI system for production line task-driven swarm intelligence. The robot is in mass production and delivery. Targets industrial manufacturing applications including vehicle assembly lines.