In a nutshell : What is a good way to power a 5V project with one-two 0.5 V solar cells?
The motivation is as follows:
My project needs about 2.5-5 Watts from the solar panel. Also, this project involves several dozen units so cost effectiveness is important. In terms of power these cells would probably suffice:
Added by Kamil
and are much cheaper per Watt than buying 5V solar panels. I though about using 0.5V cells with a dc converter but after a long search i could not find a converter that can output 500mA @ 5V from an 0.5V source, so maybe a boost converter is not the way to go.
Edit 1 ,due to Bruce Abbott's answer (thanks for answering):
Clarification, I require 2.5-5W after taking into account the fact that solar panels never output 100% except perfect conditions and in fact my actual project requires less power and is also able to save power by doing less work when the battery is too low. Bruce Abbott's answer does not really work for me as I prefer not to have to "pay" with extra cost and space (the project is small) jut for the sake of voltage conversion. (this is my first question so i am sorry if it is not clear enough)