Gpower 18650 3000mAh (Yellow-black)
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Official specifications:
- Capacity: 3000mAh
- MAX Discharge Current: 40A
- CDR (Continuous Discharge Current): 20A
- Voltage: 3.7v
- Material: Li-ion
- Length: 65.30mm
- Diameter: 18.20mm
- Top: Flat top(18mm 65mm)
- Warranty: 12 months
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A high capacity high current rated cell.
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This chart is a mess, the two cells has different capacity. At 0.2A A was 2435mAh and B was 2749mAh, neither reach the specified 3000mAh
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Both cells can handle 15A without getting too hot.
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At 20A the B cell gets too hot and I terminate the test.
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The B cell cannot handle 30A, the A cell gets too hot after some time.
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Conclusion
I do not like these cells, both are below specifications and they are very different.
As 3000mAh high current cells they are bad.
Notes and links
The batteries was supplied by gpower-battery.com 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