Lithium Ion vs Lead Acid

atreis wrote:
They've come down a little... (But are still quite expensive.)

LiFePO4 100AH for $1,300

LiFePO4 200AH for $2,400

These are (more-or-less) drop in 12V replacements with built-in BMS. They won't fully charge on 13.3V float though, which could mean having to use a different charger or a programmable solar charge controller that allows setting of the various voltages.

200Ah for $1430

700Ah for $3350

1200Ah for $5250

700Ah @ 24v - 1400Ah equiv. for $6650

I was told they have a 400Ah @ 12v version too for $1920