Drop in Lithium to Replace FLA in Cart & Boat

[Hunter450]

My 48 volt cart and boat will both be needing batteries so I'm considering going with a single set of (4 )12V drop-in lithium batteries to use in both. My cart is only used during hunting season and the boat is used outside of the hunting season so it's not an issue to transfer the set from one to the other. I'm thinking 100AH batteries will work but I'm not sure of what the amp draw is on my Admiral MOT-A4 motor is but I seldom push the cart above half throttle and cruise trails around 10mph. Each battery will have it's own BMS and I'll get a 4-bank 12 volt lithium charger and make it portable.

I know the majority of this forum centers around DIY lithium builds but if this would work, it would be the best of both worlds for me on land or sea.

I would love to see some comments/questions/observation from the lithium group.

Thanks in advance!