I'm doing a lot of wilderness expeditions an needs the lightest gear possible. I want to make a solar charger (for my nitecore nb10000) that is as light as possible and has a USB output 5V and between 2 & 3A.
I'm considering buying 2 of these USB solar panels 2 x 70grams:
and 1 of these USB y cables 30grams:
and connect them to get an USB 5V 2.4A output at a total of 170grams.
Some say it works, some say it only works if the 2 panels has the exact same output, some say it wont work, some say you can burn the weakest panel, some say you wont get the double amp output, some say you need to install a 2 or 3A voltage controler regulator module like this one :
Can anyone help me what to do? Its very important that it works and doesnt break and is as light as possible, because my life depends on my gear and I have to carry everything.
Or if you know an even better way, that works better and is lighter, then I will be very grateful if you will share :-)