Test/Review of Windyfire IMR18500 1100mAh (Red) 2015

HKJ · December 8, 2015, 7:40pm

Windyfire IMR18500 1100mAh (Red) 2015

Official specifications:

Nominal Voltage: 3.7V
Nominal Capacity: 1130mah(0.2 C Discharge)
Mininum Capacity: 1100mah(0.2 C Discharge)
Discharge Cut-off voltage: 3 V
Standard Charge : 0.4 A /4.2V
Maximum charge current: 1.5A
Quick Discharge Current: 15A
Max Discharge Current: 20A
Initial Impedance : Max:20mOhm
Cycle Life: 310times: discharging capacity>85%, 510times: discharging capacity>60%
Charging Time: Standard charge: 5-7hours, Rapid charge: 2-3hours
Operating environment: Charging, 0°C ~ 45°C ; 65±20%RH, Discharging, -20°C~60°C ; 65±20%RH
Storage environment: Temp(-20°c -35°c) / Relative humidity (45-75%)
Size(mm): 18mm(Diameter) x 50mm(Length)
Positive Shape: Flat top
Weight(g): 32±2g

As usual this cell size has fairly low capacity, but in has more than rated capacity!

This cell looks good, the two cells tracks fairly well and capacity does not change much with load, my 10A test was no problem for the cell.

Conclusion

This cell has good high current performance, capacity is as expected for an IMR cell.
This cell gets an acceptable rating.

Notes and links