Each battery module is equipped with a battery management system (BMU) to form a rack-mountable module assembly. Multiple module assemblies are then connected in series to form a battery rack.
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While both cabinets and racks serve the same purpose—supporting battery systems—their design, safety level, and use cases are very different. Here's a clear, side-by-side way to understand how they compare. Battery cabinets are fully enclosed units.
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Refer to the illustration, “Cabling 3U Cabinets in Parallel,” above, and connect the UPS-to-battery cable to Connectors A on each battery cabinet in the battery string. Connect the communication cable.
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In a UPS application, nickel-zinc monobloc battery modules are connected in series strings to match the DC bus voltage of the UPS inverter.
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