Efest IMR10440 V1 350mAh (Black) 2013
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Official specifications:
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One of the smaller LiIon cells in a high current version.
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Tracking is not perfect, but acceptable, the cells can deliver 1A with full capacity.
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Conclusion
An acceptable high current 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