Blackvue B-124E power magic EXPANSION battery (6600 mA).

Blackvue B-124E power magic EXPANSION battery (6600 mA) for BlackVue Power Magic Ultra Battery. 

The Power Magic Expansion Battery (B-124E) more than doubles the capacity of your Power Magic Ultra Battery. 
You can even add more than one expansion in sequence. 
Compatible with Power Magic Ultra Battery (B-124 and B-124X models). 

12.8 V / 6,600 mAh / 84.5 Wh 
Input 12 V–17 V. 
Output 11 V–14.5 V / 2 A (max). 

* Is an expansion battery, not work without Blackvue B-124 and B-124X.