Facebook gives its server racks a Tesla touch

It's using lithium-ion batteries, like those in electric cars, to replace lead-acid batteries for backup power

  • Matt Corddry, director of Facebook's hardware engineering lab, with some of the gear his team builds

  • A Lithium-ion battery pack (top) being tested in Facebook's hardware lab

  • Matt Corddry stands by one of Facebook's current, lead-acid battery backup systems

  • A Facebook engineer holds a Lithium-ion battery cell used in its backup battery

  • Zoh Ebrahimzadeh, a Facebook hardware engineer, works on its Lithium-ion battery pack

  • Matt Corddry in Facebook's hardware engineering lab

  • Version 2 of Facebook's power shelf design

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