Xtar 26650 4000mAh (Black)
![DSC_3631](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/DSC_3631.jpg)
Official specifications:
- 4000mAh high capacity
- Specially designed for high-performance flashlights and electronic cigarette
- 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: 4000mAh
- Size(mm): 26.1±0.2mm(body diameter)x 67.5±0.5mm (length)
- Rechargeable
![Xtar%2026650%204000mAh%20(Black)-info](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-info.png)
This battery does easily mathc the specified capacity, even at higher loads.
![DSC_3630](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/DSC_3630.jpg)
![DSC_3633](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/DSC_3633.jpg)
![DSC_3636](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/DSC_3636.jpg)
![DSC_3638](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/DSC_3638.jpg)
![Xtar%2026650%204000mAh%20(Black)-Capacity](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-Capacity.png)
The two batteries does have a fairly good match and good capacity.
![Xtar%2026650%204000mAh%20(Black)-CapacityTimeHours](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-CapacityTimeHours.png)
![Xtar%2026650%204000mAh%20(Black)-CapacityTime](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-CapacityTime.png)
![Xtar%2026650%204000mAh%20(Black)-Energy](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-Energy.png)
![Xtar%2026650%204000mAh%20(Black)-PowerLoadTime](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-PowerLoadTime.png)
![Xtar%2026650%204000mAh%20(Black)-TripCurrent](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-TripCurrent.png)
![Xtar%2026650%204000mAh%20(Black)-Charge](https://lygte-info.dk/pic/Batteries2012/Xtar%2026650%204000mAh%20(Black)/Xtar%2026650%204000mAh%20(Black)-Charge.png)
Conclusion
This battery is a good 26650 battery, it can easily handle a 7A load and will also work at 10A load.
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