Solar batteries store energy generated by solar panels for use when sunlight is unavailable, such as at night or during outages. They help maximize energy independence, reduce reliance on the grid, and increase the efficiency of solar power systems. Common types include lithium-ion and lead-acid batteries, with lithium-ion offering higher efficiency, longer lifespan, and compact design. Ideal for residential, commercial, and off-grid applications, solar batteries are essential for reliable and sustainable energy storage.