Compatibility-first battery group for MacBook Pro 13 A1278 2009, MacBook Pro 13 A1278 2010, MacBook Pro 13 A1278 2011, MacBook Pro 13 A1278 2012. Verify old battery label, voltage, and connector before final confirmation.

Apple

Exact model

MB991

Matching batteries

A1322 is listed for Apple MB991. We will reconfirm the old battery part number, voltage, connector, and shape before processing.

6,000 mAh10.95V

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Battery is swollenOnly works while plugged inShuts down soon after unpluggingNot charging or percentage is stuckVery low backup after a full chargeBattery is not detectedOther problem

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