MacBook Pro: How to remove or install memory - Apple Support
Amazon.com: DMKAOLLK A1321 A1286 Laptop Battery for MacBook Pro 15 Inch Mid 2009 Mid 2010, Replacement for MacBook Pro Battery A1321 A1286 MC371LL/A MC372LL/A MB985 MB986 MC118 77.5WH : Electronics
How to replace a 13-inch MacBook Pro battery
How to Boot MacBook Pro Without a Battery (Older Models 2006 – 2011) | OSXDaily
MacBook 13" Unibody (A1342 Late 2009-Mid 2010) Battery
A1278 A1322 Battery, POWERWOO MacBook pro Battery Replacement 13 inch Mid 2012 2010 2009 Early 2011 Late 2011, a1278 Battery with 6000mAh 10.95V 65.7Wh - High Performance and Longevity Laptop Batteries / AC Adapters - Newegg.com
2010 Macbook Pro 15" A1286 Battery Replacement - YouTube