Xing is a Taiwan-based battery systems manufacturer established in 2015 that specializes in immersion-cooled battery packs and integration. Partnering with Intel and Power, the company has developed a high-density power rack designed to address the intensive energy and cooling requirements of modern AI data centers. Xing leverages its engineering background in electric vehicle and off-highway battery systems, which includes developing customized space-optimized battery layouts such as the split front-and-rear pack configuration for British automotive partner Kerem’s Project V sports car.
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The company’s latest rack-level power platform delivers a total capacity of 1.35 MW in a single enclosure. This power density is twice that of traditional 660 kW alternative systems on the market, allowing cloud service providers to support demanding hardware footprints. Specifically, a single Xing power rack can drive up to two Ruby Ultra IT racks consuming 660 kW each, or four Vera Ruby IT racks running at 330 kW each.
To handle the thermal demands of this density, the system relies on active immersion cooling rather than traditional air cooling or liquid cold plates. By sealing the battery cells and DC-to-DC converters directly inside a proprietary coolant-filled module, the design continuously circulates fluid to dissipate heat. This complete immersion setup eliminates the need for individual cooling fans on each backup unit, reducing the overall cooling power footprint to one-sixth of conventional thermal configurations.
The complete rack architecture integrates power supply units, battery backup units, control units, and power conversion systems. Inside the rack, the power shelf is populated with four power supply units that combine to deliver 180 kW. During standard operations, the power shelf converts grid power—incorporating renewable sources depending on client requirements—from AC to DC to continuously power the adjacent IT infrastructure.
For grid failure scenarios, the integrated battery backup units provide immediate hold-up power for 45 to 60 seconds, bridging the critical operational gap before onsite diesel generators can boot and assume the load. In addition to grid stabilization, the immersion cooling design provides high physical safety. The fully charged battery packs have successfully passed three-needle penetration tests with zero fire propagation or thermal runaway.
