A question that is often asked is what is the best type of battery for solar energy storage. Your needs will determine which type of battery is best. Standard solar batteries are bulky and have poor power storage capacity. Their storage capacity is not worth the price. These standardized batteries can’t meet your needs for power or are too small. While many people tout these standardized batteries as the best choice for solar energy storage, you need to remember that they often sacrifice features to meet minimum requirements.