Rack-mounted lithium-ion batteries offer several advantages over traditional lead-acid batteries: Longer Lifespan: They typically last 5 to 15 years, while lead-acid batteries last around 3 to 5 years. Higher Efficiency: Better charge and discharge rates lead to improved. . Server rack batteries are small, rack-mountable battery backup solutions that offer reliable power for servers, telecom systems and home energy. Completely compatible with 4U rack units or higher frames, each device integrates smoothly with an inverter or UPS' module of external battery. Regular batteries, like lead-acid or consumer lithium-ion units, prioritize portability and basic energy needs. It protects your servers and network equipment from losing power when the main electricity source fails.