Having just done this (I went from FLA to AGM) I would recommend sticking with AGM's, with the money you save over lithium (still a savings, although not as extreme a price difference as it used to be) I'd go through the rest of your systems and make sure you have everything to keep those new batteries happy. I.E. programmable chargers, programmable solar controller etc so you can set everything to the exact voltages recommended by the manufacturer.
As noted above lots of folks say float of 13.6 is fine for AGM's, mine specifically state 13.2 - 13.4 so I needed a charge controller that I could put custom float settings in to keep those batteries as happy as possible.
-- Bass
|