New battery, bad health
Hello, I just replaced a battery in my MacBook Air mid2012. It was Ok (0 cycles, 99% health), but after first charge it shows 0 cycles and only 88% health. Is this normal? Thank you
MacBook Air, macOS High Sierra (10.13.4)
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No. This is not normal.
Was the battery replaced by Apple. If so, please contact Apple.
1. Reset SMC. Choose the method for “If the battery is non-removable”.
https://support.apple.com/en-us/HT201295
Does this help?
2. Hold the option key down and click menu in the menu bar.
Choose “System Information” from the dropdown
Hardware > Power > Battery Information >Health Information > Condition
Does it say Condition: Normal?
3. About Mac notebook batteries: https://support.apple.com/en-us/HT204054