Yezl 16340 880mAh (Gray)
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Official specifications:
- Capacity 880mAh (Manufacturer Stated) - Our Tests 658mAh
- 16340 (CR123A) High Quality Li-ion Cells
- Charge voltage: 4.2V +/-0.05
- Discharge voltage: 2.75V
- Protection Built in Li-ion Rechargeable 3.7v battery
- Size: 16.65mm ±0.1 Diameter x 35.80mm ±0.1
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The battery has nearly constant capacity up to 1A, this is a good performance.
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Conclusion
The battery has a good capacity, but the voltage can not match the best batteries.
I will rate it as good for a cheap battery.
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