Efest IMR18490 1100mAh (Red)



Official specifications:

• Nominal Voltage: 3.7v
• Battery Model: 18490 Capacity: 1100mAh
• Positive: Nipple Top
• Cycle Life:500 Cycles
• Weight: 45g
• Dimensions: 48.89mm (L) x 18.19mm (D)

The battery is a slightly short verions of a 18500 battery and because it is IMR it does not have protection.










The rating of 1100mAh does fit very nicely with the measurements and the battery does also handle a 5A discharge current fine.











My test is discharging the battery and it cannot continue to deliver full current.





Conclusion

This cell works well at the currents I have tested.
At the current time I can only rate them acceptable, because Efest is a new company, and the batteries is not from one of the big brands.