Dyness 12V 100Ah LiFePO4 Lithium Battery with Bluetooth, Group 24,Max.1280Wh Energy, Built-in 100A BMS with Low-Temp Protection, Perfect for Trolling Motor RV,Boat, Solar System

If you are ok going with a chinese brand, it's possible to get them cheaper... https://www.amazon.com/dp/B0FPLBW6XK $209 with tax (I just purchased today in fact) Lead Acid was $160 from the tractor store.

Dyness 12V 100Ah LiFePO4 Lithium... https://www.amazon.com/dp/B0FPLBW6XK?ref=ppx_pop_mob_ap_share