NEC's new high-end server contains swappable battery packs, intended to provide backup power without the need for an external uninterruptible power supply (UPS) in data centers.
The new rack-mounted server is part of NEC's main "Express5800" line. The company said the internal batteries will cut power use, outlast traditional UPS systems and allow for more compact data centers.
The rack-mountable server can hold up to two battery packs, although it ships with only one. When both are used, they can deliver 100 watts for 15 minutes and 30 seconds, or six minutes and 40 seconds with a single battery. The dual setup can provide power for 3 minutes and 40 seconds when the server is maxed out at 311 watts.
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Source: http://www.pcworld.com/article/2021480/new-nec-server-has-builtin-batteries-for-backup-power.html
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