Keeppower 18500 1500mAh (Black) 2014
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Official specifications:
- Min Capacity: 1400mAh
- Typical Capacity: 1500mAh
- Normal Voltage: 3.7V
- Quality Lithium Ion rechargeable cell ICR18500 made in China
- In Built Safety Circuitry
- Maximum capacity and reliability
- High Discharge Rate (Max 2C)
- Protection Circuit (Against overcharge, over discharge, over current and short-circuit.)
- 4.2 volts max voltage and 3.6-3.7 volts nominal voltage
- Over 300 charge-discharge cycles
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Keeppower sells two version of 18500, this one is the cheaper version from DLG.
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The battery does very fine up to 3A load, that is 2C and matches the rated 2C maximum discharge. Drawing much more than 3A does not really work.
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Conclusion
The performance looks average for 18500 batteries, but they are not designed for high current.
I will call the cells acceptable.
Notes and links
The batteries was supplied by Keeppower 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