OEM Battery A1321 for Apple For Apple MacBook Pro 15″ A1286 (Mid 2009, Early2010, Late 2010)

A1321  020-6830-A  3ICP5/81/77-2

For Apple MacBook Pro 15 inch A1286 (Mid 2009, Early2010, Late 2010)
For MB985 MC986 MC118
For Apple MacBook Pro 15.4″ 3.06GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) – Mid 2009
For Apple MacBook Pro 15.4″ 2.8GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) – Mid 2009
For Apple MacBook Pro 15.4″ 2.66GHz Core 2 Duo (MB985LL/A, A1286, MacBookPro5,3) – Mid 2009
For Apple MacBook Pro 15.4″ 2.53GHz Core 2 Duo (MC118LL/A, A1286, MacBookPro5,4) – Mid 2009
For Apple MacBook Pro 15.4″ 3.06GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) – Mid 2009
For Apple MacBook Pro 15.4″ 2.8GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) – Mid 2009
For Apple MacBook Pro 15.4″ 2.66GHz Core 2 Duo (MB985LL/A, A1286, MacBookPro5,3) – Mid 2009
For Apple MacBook Pro 15.4″ 2.53GHz Core 2 Duo (MC118LL/A, A1286, MacBookPro5,4) – Mid 2009
MC371 MC372 MC373
For Apple MacBook Pro 15.4 inch MC371J/A
For Apple MacBook Pro 15.4 inch MC371E/A
For Apple MacBook Pro 15.4 inch MC371B/A
For Apple MacBook Pro 15.4 inch MC371*/A
For Apple MacBook Pro 15.4 inch MC372J/A
For Apple MacBook Pro 15.4 inch MC372E/A
For Apple MacBook Pro 15.4 inch MC372B/A
For Apple MacBook Pro 15.4 inch MC372*/A

It is advisable to avoid waiting until the battery is fully charged before recharging, as this can put a lot of pressure on the battery and cause damage. A more feasible approach is to charge when there is around 20-30% remaining battery. In fact, there is a limit to the number of times a laptop battery can be used up/charged, and using it all up before recharging will greatly shorten the battery life. At the same time, batteries should be charged in a relatively dry place, and attention should also be paid to heat issues, which is the enemy of batteries.