Replacement Battery A1331 for MacBook 13 inch A1342 MC207LL/A MC516LL/A | eBay
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Amazon.com: GHU New Battery Replacement for A1331 Compatible with Apple MacBook Unibody 13 A1342 (Late 2009& Mid 2010) MC516LL/A MC207LL/A Battery Only fit 661-5391 10.8V 58 Wh : Electronics
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Amazon.com: iFixit Battery Compatible with MacBook Pro 13" Unibody (Mid 2009 to Mid 2012) : Electronics