More Than Just a Battery
Lithium-ion battery packs incorporate battery-management electronics that enable a host of functions to provide information such as accurate state-of-charge and end-of-life indications to the user. Backup battery packs embedded in data servers, rack-mounted battery systems and larger battery cabinets can all use communication protocols (such as SMBus, I2C and CAN bus) and others from the battery pack for a variety of functions. Battery management enables enhanced performance, such as smart charging algorithms to maximize cycle life, temperature monitoring for charge enable/inhibit to increase safety and life, cell balancing, state of charge, state of health, various types of visual and audio indications, and power-management functions for fan control.
Unlike SLA batteries that use a common case housing (typically three or six 2V cells in a plastic case), lithium-ion batteries comprise singular cells that are assembled into strings designed to meet the required voltage for the system it is powering. This structure enables flexibility in developing custom battery systems at voltages that make for optimum designs both electrically and mechanically. Lithium-ion battery packs used as backup power for data-storage systems range in size from as small as 8Wh packs embedded in servers to 1,000Wh packs mounted in racks and central megawatt-hour backup systems. Whatever your data-storage requirements, you have options for your backup power, and lithium-ion battery systems can offer you solid features and power per square foot.
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