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Rectangular black lithium-ion battery pack with six cells and screw holes

A1322 laptop battery 10.95V 65.7Wh 6-cell for MacBook Pro 13 A1278

SKU CH-ZVW6-9EW3Z MPN A1322

A 10.95 V, 65.7 Wh lithium-ion pack that replaces the original battery in MacBook Pro 13-inch A1278 models from Mid 2009 through Mid 2012

  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Key featuresRechargeable, 10.95 V, Laptop
  • 7Wh capacity extends runtime on compatible MacBook Pro 13 models
  • 95V lithium-ion chemistry matches original power requirements
  • Grade A cells tested for short-circuit, overheat and overload protection
  • Replaces part numbers A1322, 661-5229, 661-5557 and others
  • Includes screwdriver kit and manual for straightforward installation

Compatible replacement battery

This 10.95V 65.7Wh lithium-ion unit fits MacBook Pro 13 inch A1278 models from Mid 2009 through Late 2011. It replaces part numbers A1322, 661-5229, 661-5557, 020-6547-A and 020-6765-A across EMC 2326, 2351, 2419, 2554 and 2555 series machines.

Thermal and power behaviour

Grade A cells and built-in protection circuits guard against short circuit, overheating and overload during normal charging and discharge cycles. The pack delivers stable voltage output without requiring additional cooling beyond the notebook's own thermal design.

Upgrade context

Owners of Mid 2009, Mid 2010, Early 2011 or Late 2011 A1278 units with depleted original batteries restore full portable runtime. The jump is not worthwhile for newer Retina or Apple silicon models that use different form factors and connector layouts.

How it compares

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

Price $39.99
Pricier than about 71% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameA1322
Part numberA1322
Power
Battery voltage rating20 V
Power adapter voltage20 V

Questions about this item

How do I install the A1322 battery in my MacBook Pro 13 A1278, and which step do people often miss?

Remove the bottom case with the included screwdriver, disconnect the old battery connector, fit the new 6-cell pack, reconnect it, then replace the case; many forget to reconnect the battery data cable before screwing the case back on.

What maintenance or replacement will the A1322 battery need over time?

The 10.95 V lithium-ion pack is sealed and maintenance-free; when runtime falls below useful levels after hundreds of cycles, replace the whole battery — no user-serviceable cells or calibration routine are required.

What limit appears first during sustained use of the A1322 battery?

The 65.7 Wh capacity sets the runtime ceiling; under continuous load the pack will exhaust its stored energy before any thermal or voltage protection limit is reached.

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