Fancy Buying MacBook Pro 13" Unibody A1278/A1322 Replacement Battery 63.5Wh 10.95V — 6‑Cell with Tools

High‑capacity 6‑cell replacement battery for MacBook Pro 13" Unibody A1278/A1322 (Mid 2009–Mid 2012), rated 10.95V and 63.5Wh.

If your MacBook Pro 13" Unibody (models A1278 or A1322 from Mid 2009 through Mid 2012) is showing short run times, an unexpectedly low charge, or won’t hold a charge at all, this Fancy Buying replacement battery restores portable performance with a direct-fit design. Built with Li‑Polymer cells rated at 10.95 volts and 63.5 watt‑hours, the pack is manufactured to match the original dimensions and connector layout so installation is straightforward for users comfortable with small electronics. The purchase includes the battery and two screwdrivers needed to open the MacBook's bottom case.

How will this battery fit my MacBook Pro and which models are supported?

This battery is compatible with MacBook Pro 13" Unibody model numbers A1278 and A1322 manufactured between Mid 2009 and Mid 2012. It replaces OEM part numbers such as 661‑5229, 661‑5557 and several Apple reference codes listed below.

• Fits A1278/A1322 models: Mid 2009, Mid 2010, Early/Late 2011, Mid 2012.
• Replaces OEMs: 661‑5229, 661‑5557, 020‑6547‑A, 020‑6765‑A and related Apple part codes.
• Note: Not compatible with A1278 2008, A1321, or A1286 models—verify your model ID before buying.

What are the technical specs and how do they affect daily use?

The battery delivers 10.95V at 63.5Wh across six Li‑Polymer cells, providing run times comparable to the original when healthy. Higher capacity than worn cells means longer unplugged use, while the pack’s cell configuration supplies stable voltages to the MacBook’s power management system.

• Voltage: 10.95V — matches original battery voltage for proper power delivery.
• Capacity: 63.5Wh — restores usable battery life for typical tasks like browsing and document work.
• Cells: 6‑cell Li‑Polymer — reliable energy density in a compact form factor.

How safe and durable is this replacement battery?

Fancy Buying uses premium Grade A cells and basic protection circuits to guard against common electrical faults. The pack is rated for roughly 500 charge cycles under normal conditions; following standard charging and storage best practices helps maximize lifespan.

• Protection: overcharge, over‑discharge, over‑current and short‑circuit safeguards included.
• Expected life: around 500 recharge cycles depending on usage and care.
• Quality: Grade A cells for consistent performance and reduced swelling risk when used properly.

What comes in the box and are tools included for installation?

Your order includes one Fancy Buying replacement battery tailored to A1278/A1322 models plus two screwdrivers to remove the lower case and battery screws. The tools are basic and intended for the DIY user who follows safe disassembly guides.

• Included: one replacement battery and two screwdrivers for installation.
• Installation tip: power down, disconnect external power, and follow a step‑by‑step teardown guide to avoid connector damage.
• Support: contact the seller before purchase if you’re unsure about compatibility.

Who is this for: This replacement battery is made for MacBook Pro 13" owners (A1278/A1322, Mid 2009–Mid 2012) who need to restore portable runtime without replacing their whole computer. It’s suitable for DIY‑savvy users and technicians comfortable opening the unibody case; buyers wanting plug‑and‑play service from an Apple Store should consult Apple support. Verify your exact model identifier and part compatibility before ordering to ensure a correct fit.