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Re:OpenBSD on a Laptop by perlgod on Saturday November 03, 2018 @01:19PM (#18371334)
About 7 hours on an oldish ThinkPad (T530) on a full charge:

  $ apm
  Battery state: high, 99% remaining, 430 minutes life estimate
  A/C adapter state: not connected
  Performance adjustment mode: auto (1200 MHz)
Re:OpenBSD on a Laptop by Philipp__ on Saturday November 03, 2018 @02:22PM (#18371664)
Wow that’s good! I want to get used x220 and new 9 cell battery. If I could pull of 7-9h battery life I would consider it a great success. Btw i would be using only StumpWM, Firefox and Emacs. For media consumption I got MacBooks.
Re:OpenBSD on a Laptop by carlesfe on Saturday November 03, 2018 @05:59PM (#18372720)
On my x230 with the 44wh battery I get around 4-5 hrs with normal usage