25.2V 12Ah 18650 Medical Lithium-ion Battery Pack for Arm Rehabilitation Robots

Smart Fail-Safe Backup Power Supply with Low-Profile Base Integration and SMBus Communication

Nominal Voltage
25.2V

Nominal Capacity
12Ah

Energy
302.4Wh

  • Fail-Safe Medical UPS Mechanism: Ensures automated arm release and safe reset during sudden power outages to protect patient safety.
  • Precision SMBus Telemetry: Dual-wire protocol tracks accurate mA current, individual cell voltage, SOC, and SOH for clinical reliability.
  • Space-Saving Low-Profile Geometry: A compact 40mm thickness with a UL94-V0 enclosure, perfectly optimized for embedding into desktop robot bases.

Absolute Patient Safety, Uninterrupted Rehabilitation.

Engineered with a medical-grade UPS mechanism and real-time SMBus data tracking to ensure clinical peace of mind.

🛡️ Engineering Patient Trust: The Vital Role of Medical-Grade UPS in Robotic Rehabilitation

As battery engineers collaborating closely with medical equipment designers, we understand that an upper limb rehabilitation robot is more than an advanced machine—it is an extension of a patient’s recovery journey. When a patient is performing forearm flexion and extension guided by an interactive screen game, a sudden facility power failure cannot mean a locked mechanism. That is why this HIMAX smart lithium-ion 7S4P system is built fundamentally as a high-precision UPS mechanism. It guarantees that the robotic arm disengages and resets safely, eliminating any risk of trapping or injuring the patient. Housed in a low-profile 40mm flat geometry that seamlessly drops into the desktop base, this power unit blends structural elegance with uncompromised clinical safety.

⚙️ Intelligence Meets Rigor: Advanced Diagnostics and Standard Compliance

True medical reliability lives in the meticulous details of communication and hardware protection. This smart pack utilizes an enterprise-grade SMBus 1.1 / I2C protocol, allowing the host device to track exact mA-level current, individual cell voltages, and battery state-of-health (SOH). We selected premium 3.6V 3000mAh 18650 cells bound within a UL94-V0 flame-retardant bracket and connected through a secure, positive-locking Molex Mini-Fit 8-Pin connector to resist industrial vibrations. While fully certified to UN38.3 and manufactured under rigorous ISO9001 quality management systems, the pack is meticulously engineered and validated to meet stringent IEC 60601-1 safety standards. Featuring secondary hardware overvoltage protection and independent thermal fuses, it delivers the absolute predictability that modern clinics demand.

Specifications

25.2V 12Ah 18650 Li-ion Battery Pack
Target Application
Desktop / 3D Upper Limb Arm Rehabilitation Robots
Battery Chemistry
Smart Lithium-ion (Li-ion)
Cell Type / Model
Medical-Grade High-Specification 18650
Cell Rating
3.6V, 3000mAh per cell
Configuration Method
7-Series, 4-Parallel (7S4P)
Nominal Voltage
25.2V
Rated Capacity
12Ah
Total Energy Capacity
302.4Wh
Maximum Charge Voltage
29.4V
Discharge Cut-off Voltage
17.5V
Max Continuous Discharge Current
1.5C (18A)
Peak Pulse Discharge Current
3C (36A)
Pulse Current Duration
2 Seconds Max
Backup Mechanism
Uninterruptible Power Supply (UPS) Fail-Safe Function
Communication Protocol
SMBus 1.1 / I2C Dual-Wire Protocol
Telemetry Reporting Parameters
mA Current, Cell Voltage, SOC, SOH, Cycle Life
Interface Connector Type
Molex Mini-Fit 8-Pin (Positive Locking Mechanism)
Internal Structural Cradle
High-Rigidity Molded Plastic Bracket
BMS Hardware Redundancy
Secondary Hardware Overvoltage Protection (Secondary OVP)
Thermal Protection Systems
Independent Physical Thermal Fuses

Frequently Asked Questions

Addressing the Core Integration Challenges of Medical Power Supplies Navigating medical device compliance and power integrity can be complex. As your technical partner, we have compiled direct engineering answers to the most critical questions raised by medical OEM buyers regarding our smart rehabilitation robot battery packs.
How does the battery pack guarantee patient safety during a sudden power outage?
The pack features a highly responsive built-in UPS mechanism. Upon detecting a main power failure, it instantly supplies stable power to the robot’s emergency safety circuit. This provides a peak pulse current of up to 3C (36A for 2 seconds) to drive the mechanical arm to automatically disengage or safely reset, preventing the patient’s arm from being jammed or injured by dead locks.
What medical safety standards does this battery pack comply with?
Our manufacturing facility operates under a certified ISO9001 quality management system, and this specific battery pack has passed full UN38.3 transportation certification. Furthermore, the entire circuit architecture and internal safety controls are engineered and fully validated to meet the rigorous requirements of the IEC 60601-1 medical equipment standard.
What level of diagnostic data can our robot retrieve from the Smart BMS?
Thanks to the integration of SMBus 1.1 and I2C dual-wire communication protocols, your device can query real-time, high-precision telemetry. This includes precise current draw down to the milliampere (mA), individual series voltages, accurate State of Charge (SOC), State of Health (SOH), and historical cycle life data, allowing for predictive clinical maintenance.
How does the internal physical structure handle thermal runaway and impact risks?
The core contains premium 18650 cells housed in a rigid, custom-molded plastic bracket with a UL94-V0 flammability rating. For electronic safety, the BMS integrates redundant secondary hardware overvoltage protection (Secondary OVP) alongside independent physical thermal fuses, forming a multi-layered barrier against thermal or electrical anomalies.
Can the physical connector and dimensions be tailored to fit custom desktop enclosures?
Yes. The standard model uses a flat, low-profile footprint (40.0mm x 150.0mm x 190.0mm) with a secure, vibration-resistant Molex Mini-Fit 8-Pin locking connector. However, as an agile battery manufacturer, HIMAX offers extensive modification services for physical layouts, cable lengths, and custom enclosure mappings. Please visit our customization gateway at HIMAX Electronics to consult with our engineering team.

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