An extra point is awarded to the unit for the multiple connection options.
It can be operated with 12 volts in the car, at the normal power socket or via an
5 volt powered USB port, as for example is common to any notebook or PC.
For this purpose, at the same time another device, such as a cell phone, be charged via a USB cable.
The charging time - at least when connected via the power grid - is top notch. A charging
goes around twice as fast as the load on the camera. Neither battery is still
the charger heated. The capacity of the battery is after such a quick charge as high.
For the price of about 15 euros (as of May 2014) definitely highly recommended. 5 Stars.