Evva 18650 3400mAh (Black)
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Official specifications:
- Min Capacity: 3250mAh
- Typical Capacity: 3400mAh
- Voltage: 3.6V
- Quality Lithium Ion rechargeable cell (Used Panasonic NCR18650B cell )
- In Built Safety Circuitry, IC used Seiko of Japan chip.
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Evva has a series of protected high capacity cells for flashlight (and other) usage, this is the 3400mAh version.
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The discharge curves looks just about perfect and with the overload protection tripping with a continous 7A load, it also looks good.
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Conclusion
Evva has take a very good cell and added a good protection circuit and button top.
The result is (as expected) very good.
Notes and links
The batteries was supplied by Evva for a 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
Compare to 18650 and other batteries