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Unitree Robotics — Official Accessory

Unitree R1 Battery Charger

Name: Unitree R1 Battery Charger
Brand: Unitree
SKU: R1-CHARGER
Price: 180 USD
Availability: SoldOut

Official battery charger for the Unitree R1 humanoid robot. Delivers 54 V at 5 A (270 W) output from a universal 100–240 V AC input. Compact dimensions of 210 × 108 × 48.2 mm make it ideal for desktop, lab bench, or travel use. Designed specifically for the R1 battery system with built-in safety protections.

54V

Output Voltage

Output Current

100-240V

Universal Input

350VA

Input Power

210mm

Compact Size

Product Overview

The Unitree R1 Battery Charger is the official charging solution for the Unitree R1 humanoid robot battery system. Engineered to deliver a stable 54 V DC output at 5 A (270 W), it provides efficient, safe charging for the R1's high-capacity battery pack. The charger accepts a universal 100–240 V AC input at 50/60 Hz, making it compatible with power outlets worldwide — no voltage converter needed when traveling between regions. With compact dimensions of just 210 × 108 × 48.2 mm, the charger fits comfortably on a lab bench, desk, or in an equipment case for field deployments. Built-in safety protections guard against overcurrent, overvoltage, and thermal overload, ensuring safe operation and long battery life.

Official Unitree Charger

Genuine Unitree charger designed and tested specifically for the R1 humanoid robot battery. Ensures optimal charge profiles, thermal management, and battery longevity.

54V 5A Output

Delivers 54 V DC at 5 A (270 W) for efficient charging of the R1 battery pack. Optimized charge curve maximizes capacity while minimizing cell stress and heat generation.

Universal 100-240V Input

Accepts 100–240 V AC at 50/60 Hz with 350 VA input power. Works with wall outlets in North America, Europe, Asia, and worldwide without voltage converters.

Compact Form Factor

Measures just 210 × 108 × 48.2 mm — compact enough for desktop use, lab benches, or transport in equipment cases. Lightweight and space-efficient.

Multi-Layer Safety Protection

Built-in protections against overcurrent, overvoltage, short circuit, and thermal overload. Auto-shutoff when charging is complete. Safeguards both charger and battery.

Global Compatibility

Wide input voltage range and 50/60 Hz support mean the charger works in any country. Ideal for international research teams and traveling demonstrations.

Power Specifications

The R1 Battery Charger is engineered for reliable, efficient power delivery with specifications optimized for the R1 battery chemistry and capacity:

Input

100–240 V AC

50/60 Hz, 4 A, 350 VA

Output

54 V DC, 5 A

270 W continuous power

Dimensions

210 × 108 × 48.2 mm

Compact desktop footprint

Protection

Multi-Layer Safety

OVP, OCP, OTP, short circuit

Built-In Safety Protections

The R1 Battery Charger incorporates comprehensive safety circuitry to protect both the charger and the R1 battery pack during every charge cycle:

Overvoltage Protection (OVP)

Automatically limits output voltage to safe levels. Prevents voltage spikes from reaching the battery and damaging cells or BMS.

Overcurrent Protection (OCP)

Monitors output current and shuts down if the safe limit is exceeded. Protects against fault conditions and cable damage.

Over-Temperature Protection (OTP)

Thermal sensors monitor internal temperature. Reduces output or pauses charging if safe operating temperature is exceeded.

Short-Circuit Protection

Instantaneous detection and isolation of short-circuit conditions at the output. Protects charger electronics and battery pack.

Usage Guidelines & Best Practices

To maximize charger lifespan, safety, and battery performance, follow these best practices:

Use Only for R1 Battery — This charger is designed exclusively for the Unitree R1 battery. Do not use with other battery types or robot models.
Charge in Safe Conditions — Operate in a dry, well-ventilated area between 5°C and 40°C. Never charge in direct sunlight, near heat sources, or in enclosed spaces.
Ensure Proper Ventilation — Place the charger on a flat, hard surface with at least 10 cm clearance on all sides for airflow. Do not cover the charger during operation.
Verify Input Voltage — Confirm the wall outlet voltage is within the 100–240 V range before connecting. The charger auto-adjusts, but verify local voltage for safety.
Inspect Cables Regularly — Check the power cable and output cable for fraying, cuts, or damage before each use. Replace damaged cables immediately.
Disconnect When Not in Use — Unplug the charger from the wall outlet when not charging to reduce standby power consumption and extend component life.
Store Properly — Store in a cool, dry place between -10°C and 50°C when not in use. Avoid moisture, dust, and physical impact.
Supervise Charging — Do not leave charging unattended for extended periods. While protections are built-in, human oversight adds an extra safety layer.

Technical Specifications

Parameter	Unitree R1 Battery Charger
Product Dimensions	210 mm × 108 mm × 48.2 mm
Input Voltage	100–240 V AC, 50/60 Hz
Input Current	4 A (max)
Input Power	350 VA
Output Voltage	54 V DC
Output Current	5 A
Output Power	270 W (54 V × 5 A)
Compatible Battery	Unitree R1 battery
Warranty	12 months

* Specifications are based on manufacturer data and may vary slightly by production batch.
* This charger is designed exclusively for the Unitree R1 battery.
* Always use the official Unitree charger. Third-party chargers may damage the battery or void the warranty.
* Store in a cool, dry place. Do not expose to temperatures exceeding 60°C or below -20°C.
* Ensure proper ventilation during charging. Do not cover the charger or place it on soft surfaces.
* Unitree is a registered trademark of Unitree Robotics.

Description

Unitree Robotics — Official Accessory