Brillipower 26650 4000mAh (Black)
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Official specifications:
- Model: Li-ion 26650
- Brand Name: Brillipower 26650 4000mah
- Nominal capacity: 4000mAh
- Nominal voltage: 3.7V 26650
- Battery material: Li-ion battery
- Positive pole: Flat top
- Impedance: <80mOhm
- Cycle life: >500 Cycles
- Operation temperature: Charge(0 ~ 45°C)Discharge(-20 ~ 60°C)
- Storage Temperature: -5 ~ 35°C
- Dimension: Diameter 26mm, height 65mm
- Weight:About 95g
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The large size LiIon battery with more capacity than rated.
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The two batteries tracks fairly well, but the over current protection is a bit low, it trips the 5A trace.
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Conclusion
The cells used looks good, but the protection current limit is on the low side, and the battery does not have that great performance at a couple of ampere, compared to other 26650 batteries.
Notes and links
The battery was supplied by msitc-shop 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