Start talking about the size of this solar charger: 14.2 cm long, 7.5 in width and 1.36 in height for a total of about 150 g; we can compare (height apart), approximately a smartphone 5″.

The charger is composed of a battery of 5000 mAh powered by a solar panel by 1.2 W or alternatively by means of electrical energy, as a normal smartphone. In the first case, the battery takes about 13 hours to fully charge, the second takes from 5 to 7 hours.  However, in the instructions it is recommended not to load only and exclusively under the sun, especially if it is very strong.