Solar batteries are deep cycle batteries that store energy for solar, wind and other sustainable energy systems. These batteries are completely different from car batteries and their derivatives. A deep cycle solar battery is typically able to withstand long-term, repeated and deep discharges in off-grid renewable energy systems.
Without the battery component that can store the spent energy from solar energy, it will only be powered during the day or when the generator is running. Prices of solar batteries may vary depending on the storage system, battery material, capacity, depth and lifetime. Although the cost is not very cheap, a good solar battery storage system will work for you in the long run.