The Solar Charger looks at first glance very robust and high quality. Worked together, he looks like a handy A4 folder made of durable nylon material. When unfolded 3 large solar panels and a practical compartment for the USB charging ports (2 pieces) come to the fore. The package are carabineer hook to mounted the solar charger by means of the cover and secure it with metal reinforced mounting holes as needed somewhere extremely helpful.
Also, the first loading test surprised. I did not think that the weak, low winter sun in Germany still leads to a partial charge my smartphone. Although the yield is low, but still usable. It seems within reach, that each household operates in future similar or larger panels on his balcony.
The real benefit of RAVPower 15W solar charger is but certainly in the range of outdoor activities, including hiking and camping in areas where days are rarely or no power grids for recharging smartphones, tablets, MP3 players and similar devices available , After one to two outdoor days can be, in my view even with a freshly charged battery pack deal, here I use the way a device of RAVPower.
Thus a sensible cargo may be accomplished, for example, a complete charging of a smartphone in a few hours should, in my view, already properly the sun shine, a beautiful German summer could meet this requirement even more at a few clouds. The ideal charging is certainly in the southern sun, would be interesting, a test in the Sahara. I will update my review with respect to the deployment scenarios over and over again.
* My Opinion: In my view, the correct charger 15W solar RAVPower the price-performance ratio. For relatively little money, you get here quite a practical solution for the multi-day outdoor use in sunny days. It would be interesting perhaps a simple, built-in meter to the current charging rate to estimate, but that is probably too expensive and too complex. Also due to the good quality perception is justified, in my view 5 star.