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About
Description
Unitree Robotics — Official Accessory
Unitree As2 Battery (Long Range Version)
Official Long Range Battery for Unitree As2 Quadruped Robot. 15,000 mAh rated capacity, IS 16046 (Part 2) / IEC 62133-2 certified, proprietary Battery Management System (BMS) with battery level display, self-discharge protection, equalization charging, overcharge, over-discharge, short-circuit, and battery load detection protection.
15,000
mAh Capacity
IS 16046
Certified
BMS
Intelligent
6+
Protections
LED
Level Display
Product Overview
The Unitree As2 Battery (Long Range Version) is the official replacement and spare battery for the Unitree As2 quadruped robot. With a rated capacity of 15,000 mAh, it provides reliable power for extended operation sessions, field deployments, and research missions. The battery is certified to IS 16046 (Part 2) and IEC 62133-2 international safety standards, ensuring compliance with the most stringent lithium-ion battery regulations worldwide. At its core is a proprietary Battery Management System (BMS) that continuously monitors cell voltage, temperature, and current — delivering intelligent protection against all common failure modes. An integrated battery level LED display provides at-a-glance charge status, eliminating guesswork during field operations. Whether you need maximum endurance for long field deployments, a spare for extended missions, or a hot-swap solution for continuous operation, the As2 Long Range Battery delivers Unitree-grade reliability and safety with significantly longer runtime.
✓ Official Unitree Battery
Genuine Unitree battery designed and tested specifically for the As2 quadruped robot. Ensures optimal power delivery, thermal performance, and long-term reliability.
✓ International Safety Certified
Certified to IS 16046 (Part 2) and IEC 62133-2 standards. Meets global safety requirements for lithium-ion secondary cells and batteries used in portable applications.
✓ Proprietary Intelligent BMS
Built-in Battery Management System with real-time monitoring of cell voltage, temperature, and current. Actively balances cells and prevents unsafe operating conditions.
✓ Battery Level LED Display
Integrated LED charge level indicator provides instant visual feedback on remaining capacity. Know your battery status at a glance — no need to power on the robot to check.
✓ Self-Discharge Protection
Active protection against self-discharge during storage. The BMS minimizes parasitic drain when the battery is not in use, preserving charge for weeks between deployments.
✓ Equalization Charging
Equalization charging protection ensures all cells in the pack reach the same voltage level during charge cycles. Prevents cell imbalance, extends pack lifespan, and maintains consistent performance.
Intelligent BMS — Six-Layer Protection
The proprietary Battery Management System in the As2 Long Range Battery provides comprehensive, real-time protection across six critical domains:
🔋
Overcharge Protection
Automatically terminates charging when cells reach maximum safe voltage. Prevents thermal runaway and cell degradation.
⚡
Over-Discharge Protection
Cuts power output when cells drop below minimum safe voltage. Prevents irreversible cell damage and capacity loss.
⚡️
Short-Circuit Protection
Instantaneous detection and isolation of short-circuit conditions. Protects both the battery pack and the robot's power electronics.
🌡️
Temperature Monitoring
Continuous thermal monitoring during charge and discharge. Reduces current or pauses operation if safe temperature thresholds are exceeded.
⚖️
Equalization Charging
Active cell balancing during charge cycles ensures uniform voltage across all cells. Extends pack lifespan and maintains peak capacity.
🔌
Load Detection Protection
Intelligent battery load detection prevents operation under unsafe load conditions. Safeguards against excessive current draw from the robot.
International Safety Standards
The As2 Long Range Battery is certified to two of the world's most respected lithium-ion battery safety standards, ensuring safe transport, storage, and operation across all jurisdictions:
- IS 16046 (Part 2) — Indian Standard for Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes. Part 2 covers lithium systems, specifying safety requirements for portable sealed secondary cells and batteries made from them.
- IEC 62133-2 — International Electrotechnical Commission standard for secondary cells and batteries containing alkaline or other non-acid electrolytes. Part 2 specifically addresses lithium systems, defining safety requirements for portable sealed secondary lithium cells and batteries for use in portable applications.
These certifications cover rigorous testing for external short circuit, free fall, thermal abuse, crush, over-charge, forced discharge, vibration, and mechanical shock — giving you confidence that the battery has been validated under extreme conditions.
Usage Guidelines & Best Practices
To maximize battery life, safety, and performance, follow these best practices:
- Use Only Official Unitree Chargers — Charge only with the Unitree Standard Charger (50.4 V, 4 A) or the Unitree Fast Charger (50.4 V, 7.4 A). Third-party chargers may damage the BMS or cells.
- Charge in Safe Conditions — Charge in a dry, well-ventilated area between 5°C and 40°C. Never charge in direct sunlight, near heat sources, or in enclosed spaces.
- Cool Before Charging — Allow the battery to cool to near room temperature after heavy use before connecting the charger. Charging a hot battery reduces lifespan.
- Storage Charge Level — For long-term storage (more than 2 weeks), charge or discharge the battery to approximately 50% capacity. The BMS self-discharge protection will maintain this level.
- Storage Temperature — Store in a cool, dry place between −10°C and 30°C. Avoid extreme temperatures that can degrade cell chemistry.
- Regular Cycling — For optimal battery health, fully discharge and recharge the battery at least once every 3 months during storage periods.
- Inspect Before Use — Check the battery housing for cracks, swelling, or damage before each use. Do not use a damaged battery — contact Unitree support for replacement.
- Transport Safely — When shipping or transporting, ensure the battery terminals are protected from short circuits. Follow all applicable lithium-ion battery shipping regulations (IATA, ADR, etc.).
Compatibility
The As2 Standard Battery is designed exclusively for the Unitree As2 quadruped robot platform. It is not interchangeable with A2 or A2-W batteries, which use a different form factor and connector. Always verify you are purchasing the correct battery variant for your robot model. The battery slides into the dedicated battery bay on the As2 chassis and locks securely into place with the integrated retention mechanism.
As2 Battery Comparison
Choose the right battery for your mission profile. Both versions share the same physical form factor, BMS, safety certifications, and connector — making them fully interchangeable within the As2 platform.
| Parameter | Standard Version | Long Range Version |
| Rated Capacity | 8000 mAh | 15,000 mAh |
| Capacity Increase | — | +87.5% |
| Safety Standards | IS 16046 (Part 2) / IEC 62133-2 | IS 16046 (Part 2) / IEC 62133-2 |
| BMS | Proprietary intelligent BMS | Proprietary intelligent BMS |
| Protections | 6+ (overcharge, over-discharge, short-circuit, temperature, equalization, load detection) | 6+ (overcharge, over-discharge, short-circuit, temperature, equalization, load detection) |
| LED Level Display | Yes | Yes |
| Form Factor | As2 dedicated bay | As2 dedicated bay (same as Standard) |
| Recommended Chargers | Standard (4A) or Fast (7.4A) | Standard (4A) or Fast (7.4A) |
| Standard Charge Time* | ~2.5 hours (Standard Charger) | ~4.5 hours (Standard Charger) |
| Fast Charge Time* | ~1.5 hours (Fast Charger) | ~2.5 hours (Fast Charger) |
| Best For | Daily operations, shorter missions, lighter weight preference | Extended field deployments, all-day research, maximum uptime |
* Charge times are approximate and depend on ambient temperature, battery condition, and charger type. Use Unitree Fast Charger for shortest charge times.
Technical Specifications
| Parameter | Unitree As2 Battery (Long Range Version) |
| Rated Capacity | 15,000 mAh |
| Safety Standards | IS 16046 (Part 2) / IEC 62133-2 |
| Battery Management System | Proprietary intelligent BMS |
| Battery Level Display | LED charge level indicator (integrated) |
| Self-Discharge Protection | Protection against self-discharge during storage |
| Equalization Charging | Equalization charging protection (active cell balancing) |
| Overcharge Protection | Yes — automatic charge termination at max safe voltage |
| Over-Discharge Protection | Yes — automatic power cut-off at min safe voltage |
| Short-Circuit Protection | Yes — instantaneous detection and isolation |
| Battery Load Detection | Yes — intelligent load detection protection |
| Temperature Monitoring | Yes — continuous thermal monitoring during charge/discharge |
| Compatible Robot | Unitree As2 (not compatible with A2 / A2-W) |
| Recommended Chargers | Unitree Standard Charger (50.4 V, 4 A) or Unitree Fast Charger (50.4 V, 7.4 A) |
| Warranty | 12 months |
* Specifications are based on manufacturer data and may vary slightly by production batch.
* This battery is designed exclusively for the Unitree As2 robot. Not compatible with A2 or A2-W models. Same form factor as Standard version — fully interchangeable within the As2 platform.
* Always use official Unitree chargers. Third-party chargers may void warranty and damage the battery or BMS.
* Store in a cool, dry place. Do not expose to temperatures exceeding 60°C or below −20°C.
* Dispose of used batteries in accordance with local regulations for lithium-ion waste.
* Unitree is a registered trademark of Unitree Robotics.
Description
Unitree Robotics — Official Accessory
Unitree As2 Battery (Long Range Version)
Official Long Range Battery for Unitree As2 Quadruped Robot. 15,000 mAh rated capacity, IS 16046 (Part 2) / IEC 62133-2 certified, proprietary Battery Management System (BMS) with battery level display, self-discharge protection, equalization charging, overcharge, over-discharge, short-circuit, and battery load detection protection.
15,000
mAh Capacity
IS 16046
Certified
BMS
Intelligent
6+
Protections
LED
Level Display
Product Overview
The Unitree As2 Battery (Long Range Version) is the official replacement and spare battery for the Unitree As2 quadruped robot. With a rated capacity of 15,000 mAh, it provides reliable power for extended operation sessions, field deployments, and research missions. The battery is certified to IS 16046 (Part 2) and IEC 62133-2 international safety standards, ensuring compliance with the most stringent lithium-ion battery regulations worldwide. At its core is a proprietary Battery Management System (BMS) that continuously monitors cell voltage, temperature, and current — delivering intelligent protection against all common failure modes. An integrated battery level LED display provides at-a-glance charge status, eliminating guesswork during field operations. Whether you need maximum endurance for long field deployments, a spare for extended missions, or a hot-swap solution for continuous operation, the As2 Long Range Battery delivers Unitree-grade reliability and safety with significantly longer runtime.
✓ Official Unitree Battery
Genuine Unitree battery designed and tested specifically for the As2 quadruped robot. Ensures optimal power delivery, thermal performance, and long-term reliability.
✓ International Safety Certified
Certified to IS 16046 (Part 2) and IEC 62133-2 standards. Meets global safety requirements for lithium-ion secondary cells and batteries used in portable applications.
✓ Proprietary Intelligent BMS
Built-in Battery Management System with real-time monitoring of cell voltage, temperature, and current. Actively balances cells and prevents unsafe operating conditions.
✓ Battery Level LED Display
Integrated LED charge level indicator provides instant visual feedback on remaining capacity. Know your battery status at a glance — no need to power on the robot to check.
✓ Self-Discharge Protection
Active protection against self-discharge during storage. The BMS minimizes parasitic drain when the battery is not in use, preserving charge for weeks between deployments.
✓ Equalization Charging
Equalization charging protection ensures all cells in the pack reach the same voltage level during charge cycles. Prevents cell imbalance, extends pack lifespan, and maintains consistent performance.
Intelligent BMS — Six-Layer Protection
The proprietary Battery Management System in the As2 Long Range Battery provides comprehensive, real-time protection across six critical domains:
🔋
Overcharge Protection
Automatically terminates charging when cells reach maximum safe voltage. Prevents thermal runaway and cell degradation.
⚡
Over-Discharge Protection
Cuts power output when cells drop below minimum safe voltage. Prevents irreversible cell damage and capacity loss.
⚡️
Short-Circuit Protection
Instantaneous detection and isolation of short-circuit conditions. Protects both the battery pack and the robot's power electronics.
🌡️
Temperature Monitoring
Continuous thermal monitoring during charge and discharge. Reduces current or pauses operation if safe temperature thresholds are exceeded.
⚖️
Equalization Charging
Active cell balancing during charge cycles ensures uniform voltage across all cells. Extends pack lifespan and maintains peak capacity.
🔌
Load Detection Protection
Intelligent battery load detection prevents operation under unsafe load conditions. Safeguards against excessive current draw from the robot.
International Safety Standards
The As2 Long Range Battery is certified to two of the world's most respected lithium-ion battery safety standards, ensuring safe transport, storage, and operation across all jurisdictions:
- IS 16046 (Part 2) — Indian Standard for Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes. Part 2 covers lithium systems, specifying safety requirements for portable sealed secondary cells and batteries made from them.
- IEC 62133-2 — International Electrotechnical Commission standard for secondary cells and batteries containing alkaline or other non-acid electrolytes. Part 2 specifically addresses lithium systems, defining safety requirements for portable sealed secondary lithium cells and batteries for use in portable applications.
These certifications cover rigorous testing for external short circuit, free fall, thermal abuse, crush, over-charge, forced discharge, vibration, and mechanical shock — giving you confidence that the battery has been validated under extreme conditions.
Usage Guidelines & Best Practices
To maximize battery life, safety, and performance, follow these best practices:
- Use Only Official Unitree Chargers — Charge only with the Unitree Standard Charger (50.4 V, 4 A) or the Unitree Fast Charger (50.4 V, 7.4 A). Third-party chargers may damage the BMS or cells.
- Charge in Safe Conditions — Charge in a dry, well-ventilated area between 5°C and 40°C. Never charge in direct sunlight, near heat sources, or in enclosed spaces.
- Cool Before Charging — Allow the battery to cool to near room temperature after heavy use before connecting the charger. Charging a hot battery reduces lifespan.
- Storage Charge Level — For long-term storage (more than 2 weeks), charge or discharge the battery to approximately 50% capacity. The BMS self-discharge protection will maintain this level.
- Storage Temperature — Store in a cool, dry place between −10°C and 30°C. Avoid extreme temperatures that can degrade cell chemistry.
- Regular Cycling — For optimal battery health, fully discharge and recharge the battery at least once every 3 months during storage periods.
- Inspect Before Use — Check the battery housing for cracks, swelling, or damage before each use. Do not use a damaged battery — contact Unitree support for replacement.
- Transport Safely — When shipping or transporting, ensure the battery terminals are protected from short circuits. Follow all applicable lithium-ion battery shipping regulations (IATA, ADR, etc.).
Compatibility
The As2 Standard Battery is designed exclusively for the Unitree As2 quadruped robot platform. It is not interchangeable with A2 or A2-W batteries, which use a different form factor and connector. Always verify you are purchasing the correct battery variant for your robot model. The battery slides into the dedicated battery bay on the As2 chassis and locks securely into place with the integrated retention mechanism.
As2 Battery Comparison
Choose the right battery for your mission profile. Both versions share the same physical form factor, BMS, safety certifications, and connector — making them fully interchangeable within the As2 platform.
| Parameter | Standard Version | Long Range Version |
| Rated Capacity | 8000 mAh | 15,000 mAh |
| Capacity Increase | — | +87.5% |
| Safety Standards | IS 16046 (Part 2) / IEC 62133-2 | IS 16046 (Part 2) / IEC 62133-2 |
| BMS | Proprietary intelligent BMS | Proprietary intelligent BMS |
| Protections | 6+ (overcharge, over-discharge, short-circuit, temperature, equalization, load detection) | 6+ (overcharge, over-discharge, short-circuit, temperature, equalization, load detection) |
| LED Level Display | Yes | Yes |
| Form Factor | As2 dedicated bay | As2 dedicated bay (same as Standard) |
| Recommended Chargers | Standard (4A) or Fast (7.4A) | Standard (4A) or Fast (7.4A) |
| Standard Charge Time* | ~2.5 hours (Standard Charger) | ~4.5 hours (Standard Charger) |
| Fast Charge Time* | ~1.5 hours (Fast Charger) | ~2.5 hours (Fast Charger) |
| Best For | Daily operations, shorter missions, lighter weight preference | Extended field deployments, all-day research, maximum uptime |
* Charge times are approximate and depend on ambient temperature, battery condition, and charger type. Use Unitree Fast Charger for shortest charge times.
Technical Specifications
| Parameter | Unitree As2 Battery (Long Range Version) |
| Rated Capacity | 15,000 mAh |
| Safety Standards | IS 16046 (Part 2) / IEC 62133-2 |
| Battery Management System | Proprietary intelligent BMS |
| Battery Level Display | LED charge level indicator (integrated) |
| Self-Discharge Protection | Protection against self-discharge during storage |
| Equalization Charging | Equalization charging protection (active cell balancing) |
| Overcharge Protection | Yes — automatic charge termination at max safe voltage |
| Over-Discharge Protection | Yes — automatic power cut-off at min safe voltage |
| Short-Circuit Protection | Yes — instantaneous detection and isolation |
| Battery Load Detection | Yes — intelligent load detection protection |
| Temperature Monitoring | Yes — continuous thermal monitoring during charge/discharge |
| Compatible Robot | Unitree As2 (not compatible with A2 / A2-W) |
| Recommended Chargers | Unitree Standard Charger (50.4 V, 4 A) or Unitree Fast Charger (50.4 V, 7.4 A) |
| Warranty | 12 months |
* Specifications are based on manufacturer data and may vary slightly by production batch.
* This battery is designed exclusively for the Unitree As2 robot. Not compatible with A2 or A2-W models. Same form factor as Standard version — fully interchangeable within the As2 platform.
* Always use official Unitree chargers. Third-party chargers may void warranty and damage the battery or BMS.
* Store in a cool, dry place. Do not expose to temperatures exceeding 60°C or below −20°C.
* Dispose of used batteries in accordance with local regulations for lithium-ion waste.
* Unitree is a registered trademark of Unitree Robotics.
Unitree
by
Unitree
Unitree As2 Battery (Long Range Version)
SKU:
As2-BATTERY-LONG
- Regular price
- $750.00
- Sale price
- $750.00
- Regular price
-
- Unit price
- per
Shipping calculated at checkout.
Providing the best new Tech Experience, Energy Independence and Robotics Ways of Optimisation
Providing the best new Tech Experience, Energy Independence and Robotics Ways of Optimisation
Packaging note:
Equipment is being supplied in a manufacturer packaging
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