Xtar 18650 2600mAh (Black)



Official specifications:

• 2600mAh high capacity
• Specially designed for high-performance flashlights and electronic cigarette
• Built-in over-charge and over-discharge protection circuit, ensures superior battery life
• Short-circuit protection, ensure safety
• Improved voltage stability due to low internal resistance
• Innovative structure design, ensures impact-resistant, effectively protects the battery
• economical and eco-friendly
• Voltage: 3.7V
• Battery Capacity: 2600mAh
• Size(mm): 69.2±0.5mm(body diameter)x 18.4±0.1mm (length)

A new 2600mAh battery from Xtar, this time it is called 18650, instead of 18700. This does not mean it is 5 mm shorter, it is only about about 1 mm shorter.










This is very nice discharge curves with good tracking and full capacity at any current.











The current limit is just above 6A. Remember that it will be lower with continuous load.





Conclusion

It looks like a very good battery.



Notes and links

The batteries was supplied by Xtar 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