On the subject of tech and power supplies…
I found this article interesting for what to take on a long journey these days. I had a Sony a6000 with a telephoto lense, a cheap chromebook and a multi-port USB recharger which all took up some weight and space. But, considering I had most of that already, did not cost anything. I could plug in each night too. Every day I had to use a power back up unit for my cell phone because I relied heavily on tracking with Google Maps.
My Plan C 