Duracell Ultra Power AAA
![DSC_4291](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/DSC_4291.jpg)
Official specifications:
- Battery Size Code: AAA
- Battery Voltage: 1.5V
- Nominal Internal Impedance: 114mOhm @ 1kHz
- Battery Technology: Alkaline
- Battery Terminals: Raised Positive and Flat Negative
- External Diameter: 10.5mm
- External Height: 44.5mm
- Weight: 11g
- Battery IEC Code: LR03
- Operating Temperature Max: 54°C
- Operating Temperature Min: -20°C
![Duracell%20Ultra%20Power%20AAA-info](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/Duracell%20Ultra%20Power%20AAA-info.png)
The "best" alkaline batteries from Duracell. Each cell includes a device to measure remaning power.
![DSC_4289](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/DSC_4289.jpg)
![DSC_4293](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/DSC_4293.jpg)
![DSC_4294](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/DSC_4294.jpg)
![DSC_4295](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/DSC_4295.jpg)
![DSC_4297](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/DSC_4297.jpg)
![Duracell%20Ultra%20Power%20AAA-Capacity](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/Duracell%20Ultra%20Power%20AAA-Capacity.png)
As usual the capacity of alkaline cells varies with load. I am not very impressed with the capacity of these cells, the are not better than the Duracell Plus.
![Duracell%20Ultra%20Power%20AAA-CapacityTime](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/Duracell%20Ultra%20Power%20AAA-CapacityTime.png)
![Duracell%20Ultra%20Power%20AAA-CapacityTimeHours](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/Duracell%20Ultra%20Power%20AAA-CapacityTimeHours.png)
![Duracell%20Ultra%20Power%20AAA-Energy](https://lygte-info.dk/pic/Batteries2013Primary/Duracell%20Ultra%20Power%20AAA/Duracell%20Ultra%20Power%20AAA-Energy.png)
Conclusion
These cell has fairly average performance.
Notes and links
How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium