Efest IMR14500 650mAh (Purple) 2017
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Official specifications:
- Capacity: 650mAh
- Charging Voltage: 4.2v
- Maximum Discharge Current: 6.5A
- Maximum Pulse Current: 9.75A
- Maximum Charge Current: 650mA (1C)
- Recommended Discharge Termination: 2.75v
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14500, i.e. AA sized LiIon batteries from Efest, rated for good capacity and high current.
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The discharge curves tracks kust about prefectly and the batteries can deliver nearly 7A before capacity starts to drop. This looks good.
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Temperature also looks fine at 7A
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Conclusion
Performance looks very good on these cell, both capacity and current handling is good.
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