When natural disasters cut off power grids, when extreme weather threatens power supply safety, our communication backup power system with intelligent charge/discharge management and military-grade protection becomes the "second lifeline" for base station equipment. . While the initial investment in energy storage battery systems may be higher, they require no continuous fuel consumption and can last for more than 10 years, significantly lowering operational and maintenance costs over time. Users can use the energy storage system to discharge during load peak periods and charge from the grid during low load periods, reducing peak load demand and saving electricity. . Energy storage batteries can be seamlessly integrated with renewable energy sources, enhancing the resilience and sustainability of telecommunications infrastructure. Intelligent energy storage lithium battery can effectively protect the base station battery in the event of the accidental short. . This article clarifies what communication batteries truly mean in the context of telecom base stations, why these applications have unique requirements, and which battery technologies are suitable for reliable operations. The phrase “communication batteries” is often applied broadly, sometimes. . While lead-acid batteries currently dominate due to their lower cost, lithium-ion batteries are gaining traction owing to their higher energy density, longer lifespan, and improved performance. Market restraints include the relatively high initial investment cost of lithium-ion batteries and the. .