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Richard, Mac Genius
Category: Mac
Satisfied Customers: 43419
Experience:  Apple Computers Specialist
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I have a Macbook Retina Early 2013. Earlier this year my

Customer Question

Good afternoon.
I have a Macbook Retina Early 2013. Earlier this year my husband, who is in IT upgraded my hard drive to 1TB. Everything works except the battery, which now causes the computer to shut down without notice completely, whenever it likes. This can be at 98% capacity to 50% capacity. Rarely does it get less than that before it shuts down.
Any ideas?
Submitted: 1 year ago.
Category: Mac
Expert:  Richard replied 1 year ago.

Hi there Tracey and welcome

  1. Shut down your Mac.
  2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
  3. Turn on your Mac.
  4. Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
  5. Hold these keys until the computer restarts and you hear the startup sound for a second time.
  6. Release the keys.

Tell me how it then operates please