Solar Power Bank issue?

[Andersoner]

I have viewed sveral youtube videos on solar power bank, most people decided that the solar power source cannot be our major power source. 3 hours of feeding from the sun may only sustain a charging time of 5 miuntes. is that our mobile devices is eating the power in a higher rate than our power bank feeding from the sun?

 

[Andersoner]

there are many issue prevent us from feeding from the sun, but i am a tech fan who always like trying something new. also find bunches of solar power bank. at a pretty low price in Amazon and Tinydeal as well. and I still haven't decide on it yet.