Once you have removed the foil on the solar cell, it loads faster than the normal mains chargers and more than twice as fast as a computer USB port on my Samsung S2!
Even with my Samsung Tab 3 10.1 it works.
It provides in direct sunlight certainly well over 1A charging current!
For comparison: Conventional Charge devices for mobile phones provide 1A, 2A charge current for Tablets!
The charger is absofort my companion for walking tours! And even at home, I invite in good weather now my phone on the environment!
What the device is still missing would be a built-in buffer battery.
But I have bought to a 5000mAh Power Bank by EasyAcc. So I leave the solar charger with the Power Bank just lie in the sun and charge the Power Bank, but I'm the same with my phone mobil. Then, when the state of charge in the phone slowly runs out, I load it with the Power Bank on again. This allows me to charge my phone and, for example, overnight with solar power again, and it must not be connected to the daytime solar charger.
ATTENTION:
Because of the heat development in the blazing sun, the phone or the Power Bank always among the solar charger place!