Humanoid robots are moving from laboratories into factories, warehouses, logistics, and service applications. As commercialization accelerates, one practical question is becoming increasingly important:

How long can a humanoid robot run on one battery?

There is no single answer. Runtime depends on battery capacity, average power consumption, workload, 動作条件, and overall system efficiency.

1. How Long Can a Humanoid Robot Run?

The runtime of a humanoid robot can vary significantly depending on its design and application.

Several publicly available examples provide a useful reference:

Robot	バッテリー / ランタイム
Unitree H1	864 Wh battery
形 03	2.3 kWh / まで 5 時間
Apptronik Apollo	について 4 hours per swappable battery

Unitree H1 uses an 864 Wh battery with a replaceable battery design. 形 03 features a 2.3 kWh battery system and a reported runtime of up to 5 時間. Apptronik Apollo uses swappable batteries, with each battery designed to provide approximately 4 hours of operation.

しかし, these figures should not be directly compared because manufacturers may use different operating conditions and testing methods.

2. Battery Capacity Does Not Equal Runtime

The basic formula for estimating robot runtime is:

Runtime = Battery Energy ÷ Average Power Consumption

例えば, if a robot has a:

2.3 kWh battery

and its average power consumption is:

460 W

the theoretical runtime would be:

2.3 ÷ 0.46 = 5 時間

しかし, if the robot is carrying heavy loads, walking continuously, or performing dynamic movements, its power consumption can increase significantly.

したがって, two robots with the same battery capacity may have very different operating times.

3. What Uses Power in a Humanoid Robot?

A humanoid robot consumes energy through much more than its motors.

Major power-consuming systems include:

• Actuators – Drive the robot’s joints and movements
• AI Computing – Handles AI processing and decision-making
• センサー – Cameras, IMUs, force sensors, and other sensing systems
• Control Systems – Controllers and communication systems
• 熱管理 – Cooling for motors, エレクトロニクス, とバッテリー

Walking, lifting, carrying, and other dynamic movements generally require more energy.

This means battery design should focus on average power consumption, rather than only looking at peak motor power.

4. How Much Energy Does an 8-Hour Robot Need?

If a humanoid robot is expected to work for eight hours, its theoretical energy requirement can be estimated as follows:

Average Power	Energy for 8 営業時間
300 W	2.4 kWh
500 W	4.0 kWh
800 W	6.4 kWh
1,000 W	8.0 kWh
1,250 W	10.0 kWh

例えば, a robot consuming an average of 500 W would theoretically require:

500 W × 8 時間 = 4 kWh

At an average consumption of 1,000 W:

1,000 W × 8 時間 = 8 kWh

Real-world battery design also needs to consider conversion losses, BMS保護, 温度, battery aging, and safety margins.

5. Does a Humanoid Robot Need a 10 kWh Battery?

Not necessarily.

あ 10 kWh battery is not required for every humanoid robot. しかし, it could become relevant for future high-load industrial humanoid robots designed for longer operating periods.

For robots performing:

• Inspection
• Light material handling
• Service tasks

a smaller battery may be sufficient.

But robots performing:

• Continuous walking
• Heavy material handling
• Long working shifts
• High-intensity industrial tasks

may require 5–10 kWh or even larger energy systems.

6. Why Bigger Batteries Are Not Always Better

Robots cannot simply keep adding more battery capacity.

The relationship can become:

Battery Capacity ↑

↓

Battery Weight ↑

↓

Robot Weight ↑

↓

Motor Energy Consumption ↑

↓

More Battery Required

This is an important challenge in humanoid robot battery design.

したがって, エネルギー密度 can be more important than simply increasing battery capacity.

A lighter battery with the same energy capacity can reduce total robot weight, lower joint loads, and improve movement efficiency.

7. LiFePO4 or NMC: Which Is Better?

Different robots require different battery technologies.

LiFePO4

Key advantages include:

• Good safety characteristics
• 長いサイクル寿命
• Competitive cost
• Mature supply chain

LiFePO4 is therefore well suited for applications such as:

AGV, AMR, service robots, warehouse robots, and industrial mobile equipment.

NMC

NMC batteries generally provide higher energy density, which can be valuable for robots where weight and space are critical.

For highly mobile humanoid robots, high-energy-density battery technologies such as NMC can therefore be attractive.

将来, solid-state batteries and other advanced technologies may further increase energy density.

8. Battery Swapping May Be More Important Than Bigger Batteries

If a robot can operate for four hours on one battery, that does not necessarily mean it can only work for four hours per day.

A more practical solution can be:

Battery A → 4 時間

↓

Quick Battery Swap

↓

Battery B → 4 時間

This approach can significantly reduce downtime.

Replaceable battery designs are already being explored in humanoid robots such as Unitree H1 and Apptronik Apollo.

For factories, warehouses, and logistics operations, fast battery swapping may sometimes provide greater value than simply installing a much larger battery.

9. What Will Robot Batteries Look Like in the Future?

Future robot battery development is likely to focus on four major areas.

より高いエネルギー密度

More energy stored in a smaller and lighter battery.

より速い充電

Reducing charging downtime and increasing daily operating hours.

Smarter BMS

Real-time monitoring of:

• SOC
• ソ
• 温度
• 現在
• バッテリーの安全性

モジュール式バッテリー設計

Flexible battery systems that support quick replacement and different capacity configurations.

The ultimate goal is not simply to build the biggest battery.

It is:

More Energy + Less Weight + Longer Runtime

10. The Role of HyXin in Robot Battery Solutions

As the robotics industry develops, robot manufacturers need more than standard batteries. They increasingly require battery solutions designed around the specific requirements of each robot platform.

HyXin can provide battery solutions based on factors such as:

• 電圧
• 容量
• ランタイム
• Peak Power
• 重さ
• サイズ
• BMS
• Charging Requirements

For AGVs, AMR, service robots, and future humanoid robots, the right battery solution needs to balance 容量, 重さ, 安全性, 力, とサイクル寿命.

 

 

 

 

 

 

 

 

結論

それで, how long can a humanoid robot run on one battery?

Current public examples already show different solutions ranging from several hours to longer operating periods.

しかし, robot runtime is determined not by battery capacity alone, but by the relationship between:

Battery Capacity × Energy Efficiency ÷ Power Consumption

For lightweight robots, 1–3 kWh may be sufficient for some applications. Robots designed for longer working periods may require 5 kWh or more, while future high-load industrial humanoid robots could move toward 8–10 kWh or larger energy systems.

同時に, higher energy density, より速い充電, smarter BMS technology, and battery swapping will all play important roles in moving humanoid robots from short demonstrations toward practical commercial operation.

結局のところ, the key question for robot batteries is not:

“How big is the battery?”

It is:

“How much useful work can the robot complete with one battery?”

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