5200 mAh 10.8V // Compatible with : Models MacBook Pro 13" A1278 (2009, 2010, 2011, 2012 versions)MacBook Pro 13" A1278 (2010 Baujahr Version)MacBook Pro 13" MB990*/AMacBook Pro 13" MB990CH/AMacBook Pro 13" MB990J/AMacBook Pro 13" MB990LL/AMacBook Pro 13" MB990TA/AMacBook Pro 13" MB990X/AMacBook Pro 13" MB990ZP/AMacBook Pro 13" MB991*/AMacBook Pro 13" MB991CH/AMacBook Pro 13" MB991J/AMacBook Pro 13" MB991LL/AMacBook Pro 13" MB991TA/AMacBook Pro 13" MB991X/AMacBook Pro 13" MB991ZP/AMacBook Pro 13" MC374*/AMacBook Pro 13" MC374CH/AMacBook Pro 13" MC374J/AMacBook Pro 13" MC374LL/AMacBook Pro 13" MC374TA/AMacBook Pro 13" MC374X/AMacBook Pro 13" MC374ZP/AMacBook Pro 13" MC375*/AMacBook Pro 13" MC375CH/AMacBook Pro 13" MC375J/AMacBook Pro 13" MC375LL/AMacBook Pro 13" MC375TA/AMacBook Pro 13" MC375X/AMacBook Pro 13" MC375ZP/AMacBook Pro 13" MD102LL/AMacBook Pro 13" Precision Aluminum Unibody (2009 Version)