Keeppower 18500 2000mAh (Black) 2015
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Official specifications:
- Capacity min.: 1900mAh
- Capacity typ.: 2000mAh
- Nominal voltage: 3.70V
- Charge voltage: 4.20+/-0.05V
- Standard discharge cut-off voltage: 2.50V
- Standard charge current: 1000mA
- Standard discharge current: 1900mA
- Max. continuous discharge current: 8A
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These cells from Keeppower have very good capacity for 18500 cells, but are not for very high load.
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Very nice discharge curves with good tracking and constant capacity up to 3A. The 7A trace is cut short due to the protection kicking in.
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Conclusion
This is very good batteries for their size for lower current applications, but if you have the size 18650 is better.
Two of these cells has about the same length and voltage as 3xCR123, the diameter is larger and the capacity is higher.
Notes and links
The batteries was supplied by Keeppower for review.
CR123A and rechargeable substitutes
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
Compare to 18650 and other batteries