Efest IMR16340 550mAh (red) 2014




Official specifications:

• Size: 16340.
• Type: Li-Mn (High Drain)
• Rated Capacity: 550mAh
• Nominal Voltage: 3.7V
• Peak Voltage: 4.2V
• Cut-off Voltage: 3.0V
• Dimensions: 16.41mm (Diameter) x 34mm (Length)
• Rechargeable: Yes
• Style: Flat Top

This is a small high current battery.










The battery works fine up to 2A, but above that the cells has problems.















Conclusion

This is fairly standard performance for a good 16340 IMR cell



Notes and links

The batteries was supplied by Efest for review

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