You can expect LiFePO4 battery prices around $120–$280 per kWh in 2026, depending on application and brand. On a weight basis, raw cells are cheaper (~$15–$25/kg), but finished pack pricing is higher due to components like BMS and casing. Price and other details may vary based on product size and colour. Only 2 left in stock - order soon. The FSOLAR FS-LB200-12PRO is a high-performance 12. 8V 200AH rechargeable Lithium Iron Phosphate (LiFePO4) battery designed for maintenance-free energy storage. The communication with the inverter is established through the Battery-Box Premium LV BMU (Battery Management Unit). They are well known for their long life, comparatively low cost, low toxicity & well-defined performance. LiFePO4 may cost more upfront than lead‑acid or AGM, but its.