3 ms·

They're great, but not magical. 10 year old macbooks never did 10 hours, even when new, much less with degraded battery.

• ta1243 3y ago
  I don't recall 5 hours from my 2013 tiny macbook air. It certainly doesn't last that long now - maybe an hour.
• somehnguy 3y ago
  4-6 hours, not 10
  • izacus 3y ago
    Even that was a stretch I never got in any of them.