04220 Pin Battery

04220 Pin Battery

This pin shaped li-ion battery is perfect for smart pens or other miniature smart devices.
04220 Pin Battery


  • Li-ion pin battery ideal for small hearable and wearable devices;
  • Patented technology; 
  • High voltage with improved energy density;
  • High capacity and long cycle life;
  • Fully certified;
  • 1 year product warranty;
  • Up to US$20 million product safety insurance


  • TWS earphones;
  • Smart pens/styluses;
  • Smart jewelry;
  • Wearable medical sensors;
And more......


Model Maximum Dimension (mm) Minimum Capacity (mAh) Internal Impedance
Normal Voltage (V) Charge Ending Voltage (V) Approximate Weight (g) Maximum Charge Current Maximum Discharge Current
Diameter (mm)  Height (mm)
04220 4.8 22.5 31 800 3.85 4.4 1.1 2C/62mA 1C/31mA