Energy storage cabinets utilize various types of batteries, including 1. Among these, lithium-ion batteries stand out due to their high energy density and long cycle life. With numerous options available in the market, factors like capacity requirements, battery types, and compatibility can make the decision – making process challenging. If you're feeling confused, CNS. . Energy storage batteries (lithium iron phosphate batteries) are at the core of modern battery energy storage systems, enabling the storage and use of electricity anytime, day or night.