Test/Review of Sibeile IMR10440 350mAh (Black)

Sibeile IMR10440 350mAh (Black)



Official specifications:

  • Capacity: Nominal:350mAh,Minimum:320mAh
  • Dimensions: Diameter:10±0.1mm, Height:44±0.2mm
  • Weight:(Typical)Approx.23g
  • Nomical Voltage: Average 3.7v
  • Cut-off Voltage: 3.0v
  • Full Charge voltage: 4.2V
  • Internal Impedance: less or equal to 180 milliohm(with PTC)
  • Cycle Performance: 90% of initial capacity at 400 cycles
  • Cycle life: >500 cycles
  • Charge: Current=0.5C mA Voltage=4.2v End Current=0.01mA
  • Discharge: Current=0.5C mA End Voltage=3.0v
  • Max.Charging current: 1.5C ma
  • Max.Discharging current: 1.5C ma(for continuous discharge)
  • Temperature: dishcarge temperature range:-10°C—60°C
  • Charge temperature range: 0°C—40°C
  • storage: 1 year:-20°C—25°C, 3 months:-20°C—45°C, 1 month:-20°C—60°C














I do test the cell with a very high current for the size and it does deliver power, but it is best to stay below 1A















Conclusion

The performance is average for 10440 cells and I will call it an acceptable cell.



Notes and links

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries

Thanks HKJ! :)