slow macbook
my macbook pro becomes extremely slow and laggy once the battery reaches 75% or less or or when unplugged after 75% what could this be please ?
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lishmanb wrote:
my macbook pro becomes extremely slow and laggy once the battery reaches 75% or less or or when unplugged after 75% what could this be please ?
You do not say what exact Mac /model /year /size /retina /TouchBar is this
or
what exact macOS you are currently running?
See if you qualify:
13-inch MacBook Pro (non Touch Bar) Battery Replacement Program- October 2016 and October 2017
https://support.apple.com/13inch-macbookpro-battery-replacement
15-inch MacBook Pro Battery Recall Program- September 2015 and February 2017
https://support.apple.com/15-inch-macbook-pro-battery-recall
What is the condition of the battery—hold the Option key and click open the batt icon in the upper right menu bar.
Anything but <Condition : Good >needs to be serviced.