It will be solar charged from then on...
The tech at Noco says you cant use the regular 3500. I think he doesn't know shit. But I ordered that 30$ LithFePo charger on Amazon anyway.
https://www.amazon.com/gp/product/B08MPX414R/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Then change the title of your thread and you will get more meaningful comments.iron phosphate
I will just use the Noco 3500 to 14v and then go solar