NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Mid-2009 and Mid-2010 Models
MacBook Air Real World Battery Life (Late 2010): EveryMac.com
MacBook Pro (13-inch, Mid 2010) Branded Used - eMultanDOTpk
How To Calibrate a Mac Laptop's Power System - NewerTech
A1322 Original Battery for A1278 Apple MacBook Pro 13 inch 2009 2012, A1322 Battery for Apple MacBook Pro 13 inch A1278 (Mid 2009 – Mid 2012) - WIT Computers