Apple 15-inch MacBook Pro Replacement Battery A1321 for 2009 - early 2011 models A1286
This brand new Apple 15-inch MacBook Pro replacement laptop battery is designed for the 2009 - 2010 versions of 15 inch MacBook Pro laptops. To replace this battery you will have to manually unscrew the bottom of the laptop to replace the battery. We include the the special tri-wing screw driver you will need to accomplish this at no extra charge. If your current battery snaps into the laptop without having to unscrew anything then this is not the correct battery for you. Before purchasing MAKE SURE that you have the correct model of MacBook. The model number will be printed on the bottom of the aluminum case. The ink color is grey on a aluminum background so it is difficult to see. If you hold the bottom at an angel to the light it is easier to see the laptop model number. If your see model A1286 printed on the bottom case, this battery featured on this page is the correct battery for your MacBook Pro 15 inch. Model A1286 is your laptop model and A1321 is the part number printed on the battery itself.If your current battery snaps into the laptop without having to unscrew anything then this is not
the correct battery for you. Before purchasing MAKE SURE that you have the correct model of MacBook. The listing below of the many machine models that use this battery will be helpful. This is a premium quality battery, not a cheap imitation. This battery features Lithium polymer technology inside the battery which provides longer run times with less weight. In
addition, lithium polymer batteries are not subject to the memory effect common with older battery technology. This laptop battery replacement is 100%
compatible with the original Apple 15-inch MacBook Pro battery specifications and is individually tested and backed by a 2 Year warranty.
XTend replacement computer battery
73 Whr also compatible with 77.5 Whr
Samsung (South Korea)
Assembled in China
2 Year Warranty
30 day full satisfaction guarantee
300-500 recharge cycles
You can expect about 3 - 4 hours of run time with this computer battery when new, depending on your energy use. The higher capacity battery cells inside this cartridge have an energy capacity of 77.5 Whr.
Like all lithium polymer primary batteries, your run time will decline over time.
This battery replaces the Apple 15-inch MacBook Pro (Aluminum) Unibody series laptop batteries.
Replaces the A1321 battery in these Apple 15-inch MacBook Pro 2009 - early 2011 laptop models:This is the correct battery for your MacBook Pro 15" screen laptop if you have any of the following models: Laptop Battery Part Numbers: A1321, 661-5211, 661-5476, 020-6380-A for model A1286The last MacBook Pro 15 inch models using this battery were discontinued on October 24, 2011. If your laptop was made in November or December of 2011 you will need this battery: ( MacBook Pro 15" 2011-2012 Battery here) Additional laptop model descriptions using this battery include: MacBook Pro 15.4" 2.53GHz Core 2 Duo (MC118LL/A, A1286, MacBookPro5,4) - Mid 2009 MacBook Pro 15.4" 2.66GHz Core 2 Duo (MB985LL/A, A1286, MacBookPro5,3) - Mid 2009 MacBook Pro 15.4" 2.8GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) - Mid 2009 MacBook Pro 15.4" 3.06GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) - Mid 2009 MacBook Pro 15.4" 2.53GHz Core 2 Duo (MC118LL/A, A1286, MacBookPro5,4) - Mid 2009 MacBook Pro 15.4" 2.66GHz Core 2 Duo (MB985LL/A, A1286, MacBookPro5,3) - Mid 2009 MacBook Pro 15.4" 2.8GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) - Mid 2009 MacBook Pro 15.4" 3.06GHz Core 2 Duo (MB986LL/A, A1286, MacBookPro5,3) - Mid 2009 MacBook Pro 15.4" 2.4GHz Core i5 (MC371LL/A, A1286, MacBookPro6,2) - Mid 2010 MacBook Pro 15.4" 2.53GHz Core i5 (MC372LL/A, A1286, MacBookPro6,2) - Mid 2010 MacBook Pro 15.4" 2.66GHz Core i7 (MC373LL/A, A1286, MacBookPro6,2) - Mid 2010 MacBook Pro 15.4" 2.8GHz Core i7 (MC373LL/A, A1286, MacBookPro6,2) - Mid 2010 MacBook Pro 15.4" 2.4GHz Core i5 (MC371LL/A, A1286, MacBookPro6,2) - Mid 2010
Laptop Battery Express only deals with brand new premium computer batteries. We never carry recycled or used batteries. We only use the highest quality cells
inside the battery pack so you will have a long service life (300-500 recharge cycles). We do not use cheaper battery cells which can wear out in a little as
6 months. Our inventory turns rapidly and you will always receive a freshly manufactured battery.
How to care for your Apple 15-inch MacBook Pro A1286 and A1321 battery.
You can extend the life of your Apple 15-inch MacBook Pro laptop battery significantly through the proper care and handling of your battery.
Any new Apple 15-inch MacBook Pro laptop battery should first be fully charged by leaving it plugged in overnight. Once a computer battery is fully charged it will no longer accept any more power. It is a common practice to leave laptops plugged in after they have been turned off so that the battery has a full charge the next time you use your laptop. It is probably fully charged within 5 hours.
A brand new Apple 15-inch MacBook Pro notebook battery is in a weakened condition since it has not been conditioned yet. Condition and break in your new battery by performing 5 partial discharge and recharge cycles the first week you receive your new battery.
Run on battery power without the AC adapter cord at least once a week to keep the battery cells active and at their peak potential. When your laptop is plugged into the power adapter the battery goes to "standby mode" while your laptop runs directly on electricity from the wall outlet.
Even though your
Apple 15-inch MacBook Pro battery indicates it is fully charged, your battery will return to a weakened state again in a few months if it does not get some exercise through partial discharge and recharge cycles while running on battery power alone.
Apple 15-inch MacBook Pro battery has not been actively used 2 months or more, condition your battery again with 5 partial discharge & recharge cycles to increase the batteries capacity and run time.
Don't run your
Apple 13-inch MacBook Pro battery all the way to empty. Your battery will have a longer service life if it receives shallow discharge and recharge cycles. Research has shown that the useful life of the battery will be much longer if you begin to recharge the battery any time before reaching 20% of the remaining power capacity. Recharging the battery even after 10 minutes will not reduce the battery's life span as lithium batteries do not have the memory effect which was found in older NiCad battery technology. NiCad batteries have never been used in laptops, even the earliest models.
Never run your
Apple 15-inch MacBook Pro battery below the 2% critically low warning point. If your battery is run below this point it may not have enough energy to even recharge. This may effectively "kill" your battery.
How can I extend my Apple 15-inch MacBook Pro A1286 and A1321 battery run time?
You can extend your Apple 15-inch MacBook Pro battery run time by minimizing the power drain on your battery. A 6 cell battery will run approximately 2 to 2-1/2 hours when the
battery is new. Even longer times can be achieved by minimizing the power consumption of your laptop. Here are the top ways to reduce your power consumption.
Reduce the brightness of your Apple 15-inch MacBook Pro laptop screen. This is the number drain on your battery by far.
Avoid using the CD or DVD drive as the motor consumes a fair amount of power.
Turn off your wireless finder if you are not using the internet.
Remove any devices plugged into your USB ports or other ports.
Close out programs you are not using. By minimizing the load on your CPU, sometimes you can avoid having the cooling fan turn to its high speed mode.
Increase your memory to 4 Gigabytes. This creates less work for your hard drive. Data is temporarily written to your hard drive when your memory is not sufficient to hold all the data on the many pages you may be accessing.
15-inch MacBook Pro A1321 MB985CH/A MB985 - Black - Li-Poly 95 Whr