Battery Runtime

续航Essential

How long a robot can keep working on a single full battery charge.

Battery runtime is how long a robot can keep operating on one battery (or one full charge), and it depends on battery capacity, the robot's overall weight, motor efficiency, and how demanding the task is — the same robot standing still uses far less power than one walking continuously or carrying a heavy load. Because humanoid robots have to constantly work to stay balanced and have many joints drawing power, their runtime is typically only a few hours, which is one of the main bottlenecks keeping them out of factories and homes. Common fixes include using a bigger battery, cutting power consumption, hot-swappable batteries (swapping packs without powering down), and autonomous return-to-charge or autonomous battery swapping. When reading a manufacturer's runtime figure, it's worth checking what workload it was measured under.

ExampleUnitree's G1 humanoid is rated by the company at about 2 hours of runtime.

Also called: Battery Endurance, Battery Life
Related: Battery Management System (BMS) · Hot-Swappable Battery · Autonomous Battery Swapping · Autonomous Docking and Recharging · Humanoid Robot
Sources: Unitree G1 官方产品页 (Chinese)
As of: 2026-09