Robots used to need our help to keep going. They had to be plugged in or manually recharged. Now, UBTech is changing that. The company’s new humanoid, the Walker S2, has a feature that could reshape ...

Meet Walker S2 — a robot that swaps its own battery. No humans needed. Built by China’s UBTECH, it’s the first humanoid robot that can do this. When the battery runs low, it walks to a dock, and swaps ...

The Walker S2 robot, made by the Chinese company UBTECH, is 5 foot 3 inches (162 centimeters) tall and weighs 95 pounds (43 kilograms) — making it the size and weight of a small adult. Using a 48-volt ...

Instead of shutting down to recharge, the Walker S2 walks to a nearby swap station. When one battery starts to run low, the robot turns its torso, uses built-in tools on its arms and removes the ...