Salam,
My friends and I will probably go to Concordia for an expedition in early August for about 20 days. I wanted to know if a solar panel charger (usb) would be of any help on the trek. That is, will it be useful as they say it is for charging things like laptops or phones.
Has anyone here used it before? If yes, can you recommend a good brand and suggest a price range.
Regards