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Rectangular black lithium-polymer battery pack with connector and screw holes

A1278 laptop battery 10.95V 6000mAh 65.5Wh for MacBook Pro 13 inch A1322

SKU CH-C9W5-FJTTD MPN A1278

Replacement lithium-polymer battery rated 10.95 V, 6000 mAh, 65.5 Wh fits MacBook Pro 13 inch A1278 models from Mid 2009 through Mid 2012

  • Battery type96 W
  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Product typeCharger
  • Compatible withCompatible with MacBook Pro 13 in Model A1278 (Releases: Mid
  • Key featuresLithium polymer, Rechargeable, 10.95 V, 6,000 mAh, 65.5 Wh,
  • Longer runtime from 65.5 Wh lithium-polymer capacity
  • Reliable power with 10.95 V 6000 mAh specification
  • Fits MacBook Pro 13 inch A1278 models 2009 to 2012
  • Replaces original A1322 battery part numbers 661-5229 and 661-5557
  • Built-in overcharge and over-discharge protection for safety

Compatible MacBook Pro models

This replacement battery fits MacBook Pro 13-inch Model A1278 released between Mid 2009 and Mid 2012. It matches model identifiers MacBookPro5,5, MacBookPro7,1, MacBookPro8,1 and MacBookPro9,2. The part replaces original battery type A1322 and Apple part numbers 661-5229 and 661-5557.

Who this suits and who it does not

It suits owners of the listed 13-inch MacBook Pro models who need a new lithium-polymer battery with 10.95 V, 6000 mAh and 65.5 Wh capacity. It does not suit the 2008 version of Model A1278, nor any other MacBook Pro size or MacBook Air model because the connector and form factor are different.

Capacity and voltage

The battery delivers 10.95 volts, 6000 milliamp-hours and 65.5 watt-hours using A+ grade lithium-polymer cells. It supports fast charging and includes built-in overcharge and over-discharge protection circuits.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $52.99
Pricier than about 84% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameA1322 A1278 Battery for MBP 13 in
Part numberA1322 A1278 Battery for MBP 13 in
Product typeCharger
Power
Battery type96 W
Battery voltage rating20 V
Power adapter voltage20 V
Size & build
Product weight1 g
Compatibility
Compatible withCompatible with MacBook Pro 13 in Model A1278 (Releases: Mid 2009, Mid 2010, Early 2011, Late 2011, Mid 2012, is not for 2008 Version; Model Identifier: MacBookPro5,5 & MacBookPro7,1 & MacBookPro8,1 & MacBookPro9,2; Parts Numbers: 661-5229, 661-5557, 020-6547-A, 020-6765-A, MB990*/A, MC375LL/A, etc)

Questions about this item

How do I install the A1278 battery in my MacBook Pro 13 inch and what step do people often miss?

Remove the bottom case screws, disconnect the old battery connector, fit the new A1322 replacement, reconnect the cable, then replace the case; many forget to disconnect the battery connector before removing the old pack.

What maintenance or replacement will the 10.95V 6000mAh lithium-polymer battery need later?

The battery is sealed and maintenance-free; plan to replace it once capacity drops below usable levels, typically after several hundred charge cycles.

What limit appears first on the 65.5Wh pack during sustained heavy use?

The pack's built-in overcharge and over-discharge protection will cut power before the cells overheat, so runtime ends when the protection circuit triggers.

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