LiFePO has been the preferred chemistry for lithium based off-grid use. Interesting to see if the move is also motivated by Ford's V2X considerations. Especially since the Lightning is the first serious move into V2H/V2L. Too bad this move is not V2X compliant. Maybe later?
I would like to have a LiFePo Lightning pro SR. LiFePo batteries last a lot more cycles than Li-ion. They may be heavier so the pro may lose some payload, but even if it loses 200lbs it is still more than 2,000.