Custom Medical Device Lithium Battery Solutions
Medical devices require uncompromising standards for safety, stability, lifespan, and regulatory compliance.
Standard batteries often fall short in portable, high-frequency, and mission-critical medical applications.
As a professional custom medical lithium battery manufacturer, LARGE provides system-level customized lithium battery solutions, covering cell selection, mechanical design, BMS, and global certifications, ensuring reliable performance across demanding medical environments.
Industry Challenges
– Safety concerns in portable and wearable devices
– Fast capacity degradation under frequent use
– Space constraints incompatible with standard batteries
– Complex certifications delaying market entry
Our Strengths
ISO 13485-compliant medical-grade quality system Long-cycle-life solutions for high-frequency operation Full customization: cell, structure,and BMS Clobal certification support: UL/CE/CB/KC/UN38.3
Medical Lithium-ion Battery Pack Applications
Information & Life Support Equipment
Continuous operation with extremely high requirements for safety, stability, and precise power delivery.
· Patient monitors
· Ventilators
· ECMO systems
· Anesthesia machinesa
· AEDS
Therapeutic & Surgical Equipment
High power output, peak current demands, and strict stability requirements in surgical environments.
· Powered Surgical Staplers
· CPR devices
· Surgical robots
· Medical robots
· Electric nursing beds
· Air mattress inflation pumps
Medical Imaging Equipment
High energy consumption, long runtime, precise power management, and vibration resistance.
· Ultrasound systems
· Portable video laryngoscopes
· DR (Digital X-ray systems)
· Laparoscopes / Hysteroscopes
· Bone densitometers
· Hysteroscopes
In Vitro Diagnostics
(Ward & Department Equipment)
Low to medium power consumption with strict requirements for compact size, long lifespan, and frequent in-hospital mobility.
· ICU electric beds
· Infusion Pump
· Medical pendant systems / Syringe Pump
Home Healthcare Devices
Portable, low-noise, high-safety requirements with strong battery adaptability.
· Home oxygen concentrators
· CPAP devices / Nebulizers
· Electronic blood pressure monitors
· Hearing aids
· Wheelchairs
· Mobility assistance devices
Medical Lithium ion Battery Pack Solutions
Medical Color Doppler Ultrasound Battery Pack Solution
Developed through engineering document review, mechanical fit analysis, and hospital use-scenario research (mobility routes, power profiles, vibration conditions) to define medical-grade requirements for reliability, safety, and service life.
- Long-Term Runtime Consistency
- Medical-Grade Mechanical Reliability
- Accurate State-of-Charge Management
Electrical Performance & Cell Design
Panasonic NCR18650GA6W cells
Configuration: 4S2P, 14.4V / 6200mAh
High consistency and low internal
resistance for stable runtime
Smart BMS Design
TI BQ40Z50 Accurate State-of-Charge (SoC) Estimation
Overcharge/ Overdischarge/
Overcurrent/ Short circuit/ Overvoltage
SMBus communication: fault reporting
Structure & Assembly
Medical-grade ABS enclosure,
ultrasonic welding
Weld joint tensile strength ≥ 2.5 kgf
Passed vibration and drop tests
Portable Oxygen Concentrator Lithium Battery Solution
Defined through application evaluation of mobility scenarios, –40°C extreme low-temperature operation, system power curves, and air pump load characteristics, ensuring reliable power for outdoor, aviation, and cold-region use.
- Wide operating range: –40°C to +55°C
- Complies with GB 31241 / IEC 62133 / UL 2054 / RoHS
- LED battery level indication for user visibility
Electrical Performance & Cell Design
Panasonic NCR18650GA Cells
Configuration: 4S2P, 14.4V / 5200mAh
High consistency, low internal resistance, stable wide-temperature discharge
Smart BMS Design
TI BQ40Z50 Accurate State-of-Charge(SoC)Estimation
Protection: overcharge, overdischarge, overcurrent, short circuit, overvoltage
SMBus communication, LED display
Structure & Assembly
ABS+PC UL94-V0 enclosure, ultrasonic sealed structure
Passed vibration and drop tests | RoHS compliant
Global Certifications & Medical-Grade Validation of Lithium Battery
From regulatory compliance to reliability validation and full-process traceability, ensuring medical-grade safety and compliance.
Regulatory Compliance
Coverage of core regulatory requirements for medical device batteries:
- ISO 13485
- IEC 62133
- UL 2054
- UN 38.3
- CE/FCC/RoHS
- MSDS
Reliability & Safety Validation
Testing under simulated hospital, outdoor, and extreme environments:
- Temperature cycling
- High- & low-temperature discharge
- Vibration/drop/shock
- Abuse tests: overcharge, short circuit, nail penetration
- Enclosure flame-retardant testing (UL94 series)
- ESD immunity
- IP54–IP67 ingress protection
Traceability & Quality Control
End-to-end quality traceability from R&D → prototype validation → mass production:
- Batch consistency control
- Full-process barcode traceability
- Automated test reports
- Scalable transition from pilot builds to mass production
- 100% aging before shipment
Why Choose LARGE
Cell selection, structure, BMS, communication,
certification, packaging – all customized.
Over 100 medical battery designs delivered
worldwide.
100% full aging + automated test reports.
We can produce small – batch prototype
cells for validation.
Looking for an application-specific lithium battery?
Our engineers will recommend a customized lithium ion battery solution.
