^No doubt. And if I wanted/needed a large (reserve) and/or lightweight battery bank, I believe build your own Li is currently the setup to beat….inmost conditions.
While it would be slightly more convenient I actually would never get my money’s worth out of expensive batteries in our current scenario of camping like twice a year.
My point to FWC was, liFePO4s in cold weather are like that hot chick at the bar. Fun in the sack, nice to show off, high energy, but high maintenance.
Temperate weather or enough time and effort to keep her happy, they are great.
SiO2 are pretty intriguing as well.
And by the time we camp enough for our batteries to matter, technology will be better than it is currently. In the meantime, anything will work because I have generator(s).