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Rectangular silver laptop battery with black connector strip

Ninjabatt A1278 A1322 76.56Wh 11.6V laptop battery

SKU CH-G54N-01Q2Y

Replacement lithium-polymer battery rated 76.56 Wh at 11.6 V for MacBook Pro 13 inch A1278 models from Mid 2009 through Late 2011

  • TypeCharger
  • Battery Type96W
  • Battery Voltage20V
  • AC Adapter Voltage20V
  • Featureslithium_polymer, Rechargeable, 11.6 volts, 6600 milliamp_hou
  • Dimension14.33in W x 12.83in H x 9.06in D
  • 56Wh capacity delivers extended runtime for compatible MacBook Pro 13-inch models
  • 6V lithium-polymer chemistry tested to meet OEM specifications for reliable charging
  • Replaces original part numbers including 661-5557 and 661-5229 across multiple production years
  • Fits MacBook Pro 13-inch A1278 from Mid 2009 through Late 2011
  • New condition battery restores full mobile operation without requiring original equipment

Ninjabatt A1278 A1322 76.56Wh 11.6V Battery

This new replacement battery suits Apple MacBook Pro 13 inch models from Mid 2009 through Late 2011. It uses lithium polymer cells rated at 76.56Wh and 11.6V to restore original runtime. The part replaces OEM numbers including 661-5557 and 661-5229.

Fits MacBook Pro 13 A1278 2009-2011 only

Buyers with a 2008 MacBook Pro 13 inch or any Retina model cannot use this battery. It also does not fit MacBook Air, 15 inch Pro or later 13 inch revisions. Check your model identifier before ordering.

11.6V 76.56Wh lithium polymer specification

The electrical rating of 11.6 volts and 76.56 watt-hours decides compatibility. Your Mac must accept this exact voltage and capacity. A different voltage will not work safely.

Highlights

  • 56Wh capacity delivers extended runtime for compatible MacBook Pro 13-inch models
  • 6V lithium-polymer chemistry tested to meet OEM specifications for reliable charging
  • Replaces original part numbers including 661-5557 and 661-5229 across multiple production years
  • Fits MacBook Pro 13-inch A1278 from Mid 2009 through Late 2011
  • New condition battery restores full mobile operation without requiring original equipment

Specifications

BrandDELL
ModelA1322
Part NumberA1322
TypeCharger
Battery Type96W
Battery Voltage20V
AC Adapter Voltage20V
Featureslithium_polymer, Rechargeable, 11.6 volts, 6600 milliamp_hours, 76.56 watt_hours, Laptop
Dimension14.33in W x 12.83in H x 9.06in D
Weight10 ounces

Questions about this item

Does my MacBook Pro 13 inch A1278 need a specific model year to use this 76.56Wh 11.6V battery?

This battery fits MacBook Pro 13 inch A1278 models from Mid 2009, Mid 2010, Early 2011, Late 2011 and Mid 2012. It is not compatible with the 2008 A1278. Check About This Mac to confirm your exact model and year before ordering.

Will this 6600mAh lithium-polymer battery work if I keep my original 60W MagSafe charger?

Yes. The battery charges through the standard MagSafe port on supported A1278 models. Your existing 60W MagSafe adapter supplies the correct voltage for charging this 11.6V pack.

How can I verify the 76.56Wh capacity is reporting correctly after installation?

Open System Information > Power and confirm the Full Charge Capacity reads near 76.56Wh and the voltage shows 11.6V. The cycle count should start low and the condition should display Normal.

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