Official Unitree A2 Battery -- 9000mAh / 453.6Wh smart battery with advanced BMS. Designed for the dual hot-swappable battery system on the Unitree A2 quadruped robot dog for extended endurance and reliable power.
The Unitree A2 Battery is the official single-battery power source engineered for the Unitree A2 and A2-W quadruped robot dog series. Each pack delivers 9000mAh (453.6Wh) of capacity and is used in the robot's dual-slot, hot-swappable configuration (two batteries for a combined 18000mAh / 907.2Wh). This design supports continuous operation with seamless battery swaps, enabling the A2 to achieve more than 5 hours / ~20 km of continuous walking unloaded or more than 3 hours / ~12.5 km with a 25 kg payload.
Equipped with Unitree's self-developed Battery Management System (BMS), the battery provides real-time battery level display along with multiple safety and longevity features: storage self-discharge protection, balanced charging protection, overcharge protection, over-discharge protection, short-circuit protection, and battery load detection protection. It is an essential spare or replacement accessory for research, industrial inspection, logistics, patrol, and field operations that demand maximum uptime.
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