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Rectangular black lithium-ion battery pack for 13-inch MacBook Pro

FOCUSTEC

FOCUSTEC laptop battery A1278 A1322 MacBook Pro 13" 2009-2012 65.7Wh 10.95V

SKU CH-MG82-EP4Y4

Replacement lithium-ion battery for 13-inch MacBook Pro models from 2009 to 2012, rated at 65.7Wh and 10.95V

  • Battery TypeLithium-Ion
  • Restores mobility with 65.7 Wh lithium-ion capacity
  • Fits MacBook Pro 13-inch models from 2009 through 2012
  • Replaces OEM part numbers including 661-5557 and 661-5229
  • Operates at 10.95 V matching original voltage specification
  • Excludes 2008 A1278 units — verify model before ordering

Replacement battery for 13-inch MacBook Pro

This new lithium-ion battery replaces Apple part numbers A1278 and A1322 in 13-inch MacBook Pro models released between 2009 and 2012. It is rated at 65.7 Wh and 10.95 V, matching the original electrical specifications. The pack uses grade-A cells and includes integrated safety circuits.

Suitable for owners of listed part numbers.

The unit fits the extensive list of Apple part numbers supplied by the manufacturer, covering MC375, MB990, MB991, MC700, MC724, AMB991, AMC374, AMC375, AMC700, AMC724, AMD101, AMD102, AMD313 and AMD314 series. Buyers with a 2008 A1278 model must not purchase this battery because the manufacturer explicitly states it is incompatible.

Capacity 65.7 Wh at 10.95 V

The single figure that decides fit is the energy rating of 65.7 Wh combined with the 10.95 V nominal voltage. If the original battery carried a different watt-hour or voltage value, this replacement will not match the MacBook power-management expectations.

Highlights

  • Restores mobility with 65.7 Wh lithium-ion capacity
  • Fits MacBook Pro 13-inch models from 2009 through 2012
  • Replaces OEM part numbers including 661-5557 and 661-5229
  • Operates at 10.95 V matching original voltage specification
  • Excludes 2008 A1278 units — verify model before ordering

Specifications

Battery TypeLithium-Ion

Questions about this item

How long will the 65.7 Wh capacity last under continuous load before needing a recharge?

The 65.7 Wh rating indicates total energy storage; actual run-time under sustained load depends on the MacBook Pro 13" system draw and cannot be stated as a fixed duration.

Does the lithium-ion pack generate noticeable heat or fan noise during all-day operation?

The battery itself is a passive component and produces no fan noise; warmth during heavy use is normal for lithium-ion cells but stays within the design limits of the MacBook Pro 13" chassis.

Which MacBook Pro 13" model identifiers must my laptop show in About This Mac for this A1278/A1322 battery to fit?

Compatible models include MC375LL/A, MB990*/A, MB991*/A, MC700*/A, MC724*/A, AMB991LL/A, AMC374LL/A, AMC375LL/A, AMC700LL/A, AMC724LL/A, AMD101LL/A, AMD102LL/A, AMD313LL/A, AMD314LL/A and part numbers 661-5229, 661-5557, 020-6547-A, 020-6764-A, 020-6765-A; it does not fit the A1278 2008 model.

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