3.7V 18mAh 150732 Smart Ring Lipo Battery

  • Model: LNC150732
  • Voltage: 3.7V
  • Capacity: 18mAh
  • Size: 32 × 7 × 1.5mm

LNC150732 Flexible LiPo Battery

Ultra-thin, flexible lithium polymer battery engineered for smart rings and compact wearable electronics requiring high design freedom and reliable micro-power performance.

3.7V
18mAh
32×7×1.5mm
Flexible Pouch Cell

Product Overview

The LNC150732 is a custom flexible LiPo cell designed specifically for ultra-compact wearable devices such as smart rings.
Its ultra-thin 1.5mm profile enables integration into highly constrained mechanical structures while maintaining stable electrochemical performance.

Unlike conventional rigid lithium-ion cells, polymer pouch technology allows customized shapes, improved mechanical flexibility, and enhanced safety behavior under abnormal conditions.

Technical Specifications

ItemSpecification
ModelLNC150732
Nominal Voltage3.7V
Capacity18mAh
Dimensions32 × 7 × 1.5mm
Initial Internal Resistance≤1800mΩ
Factory Voltage3.8V – 4.0V
Charge Cut-off Voltage4.35V
Discharge Cut-off Voltage3.0V
Standard Charge Current9mA
Max Charge Current18mA
Standard Discharge Current9mA
Max Discharge Current18mA
Operating TemperatureCharge: 5°C~35°C / Discharge: -20°C~45°C
Cycle Life≥500 cycles (0.2C charge/discharge, ≥65% retention)

Key Advantages of Polymer Flexible Battery

Long Cycle Life

Up to 500+ charge/discharge cycles under standard conditions.

High Energy Density

Provides strong energy output in a compact lightweight structure.

Low Internal Resistance

Polymer cells can achieve ultra-low resistance (down to 35mΩ in advanced designs), reducing energy loss.

Low Self-Discharge

Minimal capacity loss during long-term storage.

No Memory Effect

No need for full discharge before recharge.

Excellent Discharge Stability

Stable discharge curve with higher voltage platform due to gel polymer electrolyte.

Custom Shape Design

Supports fully customized geometries for OEM wearable integration.

Enhanced Safety

Pouch structure avoids explosion risk; swelling only under extreme conditions.

Applications

  • Smart Rings
  • Wearable Health Devices
  • Miniature IoT Systems
  • Smart Sensors
  • Low-power Electronics

OEM / ODM Custom Battery Solutions

We support full customization for wearable battery solutions including dimensions, capacity, shape, and discharge requirements for smart ring and micro-device applications.