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How to do when your apple macbook pro(mc721ch/a) laptop battery won't charge

1, Please check the hardware at first:

  a, Clean the apple macbook pro(mc721ch/a) battery contacts. Try charging the laptop battery with the power off. Some laptops draw a lot of power -- so much so that they can't efficiently charge the battery and run demanding tasks at the same time. If the battery doesn't seem to be getting fully charged, shut down the laptop entirely and see how it goes.

  b, Try a deep charge. If the apple macbook pro(mc721ch/a) battery is in a bad state, you might be able to bring it back to life with a deep charge cycle. First, make sure it's complete discharged by running the laptop with the battery installed (and the AC adapter removed) until the laptop completely dies. Then charge the laptop overnight.

  c, If your original old battery still charges and discharges but your new replacement apple macbook pro(mc721ch/a) battery will not, the new battery may have run to 0% or it may be a defective unit. This may be an indication that you need to replace your AC Adapter. It is more difficult to charge a new battery than it is to charge an older "broken in" battery. If your AC adapter is not outputting the correct amount of power you can run your computer, and charge an old battery, but you may be unable to charge a brand new battery.

If neither battery will recharge, you are most likely experiencing a failure in the laptop charge system (AC adapter, charge port, or motherboard charge circuit).

2, Configuring and upgrading software:

  a, Make sure you're on the latest BIOS revision for your laptop. Windows system, you could also try a repair install and rule out a corrupt installation.

  b, Have a look at your power settings, open up your control panel, and head into the Power Options.
There are several settings in here, take a quick glance around to make sure that nothing looks out of place. The particular one to look out for is the setting that causes your laptop to shut down if your battery percentage drops to a certain low threshold.

  c, Update your drivers, open up the device manager, and under Batteries you'll find a number of entries.
There should usually be three, one for the battery itself, one for the charger and a third called 'Microsoft ACPI Compliant Control Method Battery'. Right click on all of these entries head into properties, then into the driver tab and find the 'Update Driver' button (This may also be found by just right clicking the entry and hitting 'Update driver software'). Once you've done this, restart your laptop and try plugging the charger in again.

If you try all of these troubleshooting steps and your battery is still not working properly, it's time to get a new battery.

Cheap macbook pro(mc721ch/a) 10.95V,9 cell 6 cell laptop batteries

1. original battery for apple macbook pro(mc721ch/a), 10.95 voltage, 7000 mAh, 9 cells, Li-ion laptop batteries

Cheap macbook pro(mc721ch/a) 10.95V,9 cell 6 cell laptop batteries
Click to view more pictures
Product ID: 1003206
Battery Type: Li-ion
Property: original battery [?]
Voltage: 10.95 V
Battery capacity: 7000 mAh (9 cell)
Color: black
Warranty: 9 months

2. original battery for apple macbook pro(mc721ch/a), 10.95 voltage, 7000 mAh, 9 cells, Li-ion laptop batteries

Cheap macbook pro(mc721ch/a) 10.95V,9 cell 6 cell laptop batteries
Click to view more pictures
Product ID: 1002457
Battery Type: Li-ion
Property: original battery [?]
Voltage: 10.95 V
Battery capacity: 7000 mAh (9 cell)
Color: Black
Warranty: 9 months

3. replacement battery for apple macbook pro(mc721ch/a), 10.95 voltage, 6600 mAh, 6 cells, Li-ion laptop batteries

Cheap macbook pro(mc721ch/a) 10.95V,9 cell 6 cell laptop batteries
Click to view more pictures
Product ID: 1002050
Battery Type: Li-ion
Property: replacement battery [?]
Voltage: 10.95 V
Battery capacity: 6600 mAh (6 cell)
Color: Black
Replace brand: apple
Warranty: 12 months

Apple macbook pro(mc721ch/a) laptop batteries can replace the following part number:

APPLE

macbook pro(mc721ch/a) laptop battery is compatible with the following models :

APPLE
MacBook Pro 15 Inch MB985X/A
MacBook Pro 15 MB985
MacBook Pro 15 MB985CH/A
MacBook Pro 15.4 2.2GHz Core i7(A1286)-Late 2011 MD318LL/A MD318LL/A
MacBook Pro 15.4 2.3GHz Core i7(A1286)-Early 2011 MC723LL/A MC723LL/A
MacBook Pro 15.4 2.7GHz Core i7(A1286)-Mid 2012 MD104LL/A MD104LL/A
MacBook Pro 15\ MB985/A
MacBook Pro 15\ MB985J/A
MacBook Pro 15\ MB985LL/A
MacBook Pro 15\ MB985TA/A
MacBook Pro 15\ MB985X/A
MacBook Pro 15\ MB985ZP/A
MacBook Pro 15\ MB986/A
MacBook Pro 15\ MB986CH/A
MacBook Pro 15\ MB986J/A
MacBook Pro 15\ MB986LL/A
MacBook Pro 15\ MB986TA/A
MacBook Pro 15\ MB986X/A
MacBook Pro 15\ MB986ZP/A
MacBook Pro 15\ MC118
MacBook Pro 15\ MC118/A
MacBook Pro 15\ MC118CH/A
MacBook Pro 15\ MC118J/A
MacBook Pro 15\ MC118LL/A
MacBook Pro 15\ MC118TA/A
MacBook Pro 15\ MC118X/A
MacBook Pro 15\ MC118ZP/A
MacBook Pro B986CH/A
MacBook Pro MB985/A
MacBook Pro MB985CH/A
MacBook Pro MB985J/A
MacBook Pro MB985LL/A
MacBook Pro MB985TA/A
MacBook Pro MB985X/A
MacBook Pro MB985ZP/A
MacBook Pro MB986/A
MacBook Pro MB986J/A
MacBook Pro MB986LL/A
MacBook Pro MB986TA/A
MacBook Pro MB986X/A
MacBook Pro MB986ZP/A
MacBook Pro MC118
MacBook Pro MC118/A
MacBook Pro MC118CH/A
MacBook Pro MC118J/A
MacBook Pro MC118LL/A
MacBook Pro MC118TA/A
MacBook Pro MC118X/A
MacBook Pro MC118ZP/A
MacBook Pro MC666JA/A
MacBook Pro(MC721CH/A)

Apple macbook pro(mc721ch/a) laptop battery and other products you purchased from us are guaranteed!

  We warrant that the products sold in our website, other than explicitly stated, are 100% brand new and free from defects in material and workmanship.

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You have a larger selection of laptop batteries, which can perfectly work with your equipment.

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How long will my apple macbook pro(mc721ch/a) batteries last?

The lifespan of a macbook pro(mc721ch/a) laptop batteries will vary considerably with how it is used, how it is maintained and charged, temperature, and other factors.

Does apple macbook pro(mc721ch/a) batteries self-discharge when not in use?

All batteries, include macbook pro(mc721ch/a) laptop batteries, regardless of their chemistry, self-discharge. The rate of self-discharge depends both on the type of laptop battery and the storage temperature the batteries are exposed to. However, for a good estimate, wet flooded deep cycle laptop batteries self-discharge approximately 4% per week at 80°F.

Disclaimer:
The macbook pro(mc721ch/a) laptop batteries and other products supplied by our Company are [replacement for] sold for use with certain product manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the manufacturers with which our products [are replacement for] may be used. Our Company and this Web site are neither affiliated with, authorized by, licensed by, distributors for, nor related in any way to these manufacturers, nor are the products offered for sale through our web site manufactured by or sold with the authorization of the manufacturers with which our products [are replacement for] may be used.

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