5v to 13.8v usb to PP upconversion
i want to use a 14w folding solar panel for my 817 when backpacking. I found one at a hamfest but it only has a 5v USB male output. I have also looked at up convertors to get a 13.8 v ouput to match the rig input.
Big question, am I wasting my time with only a 14watt panel ? If not, is this worth the effort ?