Solar cell phone? Which is better?

Question

Solar panels

Hello everyone, this is my question.
I want a solar battery for my phone. What models do you recommend?
Not necessarily in Russia, it is possible outside of it.
And such another question, to the experts, on what does the power and quality of the battery depend on the quadrature or on the material (coating, film)?
Thanks for answers.

Answer 1

here is a good one
tinyurl.com/o6lcqbe