@Gary posted:We just watched 2 hrs of sat Tv with lights on. 2 cheap group 27 5 yrs old flooded batteries and the control still says 12.6 . In the morning with the furnace set at 58 degrees it will say 12.5 then the sun will be up and in a few hours fully charged. I have to wonder why spend lots of money on lithium when the old technology works so good
I support Gary's position that for his needs, lead acid is just fine. If you stand back and look at his point, most that argue for lithiums are making an apples-to-oranges comparison.
Gary probably doesn't spend the equivalent of two months off grid per season or the equivalent of a year in his camper by treating it like a home. Therefore, it's a rather unfair argument that somehow his technology is a poor choice. Like he, we're occasional recreational users, and have never suffered zero power after a couple of days of use because of our camping style when we powered with lead-acid.
Yes, we have lithiums in our camper, but it was not a choice due to them lasting the next 60 years at 50 cycles a year, charging faster, etc. It was more out of curiosity to learn something about the new technology than anything that drove the decision to install lithiums and not 'need' as the sales pitch ALWAYS sounds like.