UltraFire BRC26650 7800mAh (Red)



Official specifications:

• Model: 26650
• Type: Rechargeable Li-lithium battery
• Capacity: 7800mAh
• Voltage: 3.7V
• Max Continuous Discharge: 8A
• Max Peak Discharge: 4A    Something is wrong with Peak/Continuous rating
• Size: about 66*25*25mm
• Color: Purple

Cheap super high capacity 26650, it is barely necessary to test to give a correct conclusion.










The two cells I tested have different capacity, the best can reach 2300mAh at 0.2A. They can barely deliver 7A.





Even at maximum load the temperature is not that bad.















Conclusion

Different capacity for the two cells, below 1/3 the rated capacity, problems delivering rated current, it is bad cells.



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
Compare to 18650 and other batteries
Compare to 26650 and other batteries

Batteries with ridiculous ratings