The prices of solar batteries differ greatly because of each battery’s specific type, capacity, and brand. The least expensive are acid - lead batteries which start from several hundred dollars for smaller units. Larger capacity Lithium-ion batteries, especially the premium ones, can cost anywhere from 1,000. The total cost can also be impacted by Installation, additional components, warranties, and further services offered. On the brighter side, slipping prices due to increased production and technological advancements are improving accessibility to solar batteries. Moreover, government incentives would further lower the cost for consumers.