Fancy Buying MacBook 13" Unibody Replacement Battery A1331/A1342 — 10.95V 5800mAh, 12‑Month Warranty

This Fancy Buying A1331 / A1342 13" replacement battery is a direct-fit Li‑polymer pack (10.95V, 5800mAh / 64Wh) designed to restore run-time for Late 2009–Mid 2010 MacBook Unibody models.

If your Mid 2010 or Late 2009 13-inch MacBook Unibody shows short run time or won’t power on without the charger, this aftermarket battery offers a high-capacity, A‑grade Li‑polymer replacement built to match the original form and connectors. It replaces Apple part numbers A1331 and A1342 and fits model references such as 661-5391, 020-6582-A and compatible EMC/MC identifiers. The pack uses three cells, delivers 10.95 volts, and 5800mAh (64Wh), with a rated 500 recharge cycles and a 12‑month warranty plus a 30‑day return window.

Which MacBook models will this battery work with?

This battery is intended for the 13-inch unibody MacBook models sold in Late 2009 and Mid 2010. It matches Apple A1331 and A1342 replacement lines and the OEM part numbers listed below.

• Compatible Apple references: A1331, A1342.
• Fits model/part numbers: 020-6580-A, 020-6582-A, 020-6809-A, 020-6810-A, 661-5391.
• Common model IDs it fits: MC233LL/A, MC207LL/A, MC516LL/A.
• Not for non‑unibody or other size MacBooks—verify your model number before ordering.

How does this replacement compare to the original battery?

The Fancy Buying pack is built with A‑grade Li‑polymer cells at the same nominal voltage and capacity as many stock MacBook packs, giving comparable run time and safety when installed correctly. It’s specified for roughly 500 recharge cycles and carries a 12‑month warranty.

• Voltage: 10.95V — matches original design.
• Capacity: 5800mAh (64Wh) — restores typical run time for supported machines.
• Cell count: 3 cells using Li‑polymer chemistry.
• Quality/support: A‑Grade cells, 12‑month warranty, 30‑day returns.

What should I know about installation and safety?

Installation requires removing the bottom case and unplugging the original battery connector from the logic board. Take standard electrostatic and screw‑handling precautions and consult step-by-step guides or a technician if you’re not comfortable opening your MacBook.

• Power down and disconnect charger before beginning work.
• Use appropriate screwdrivers to avoid damaging case screws or internals.
• Disconnect the battery connector gently; avoid bending pins or flex cable.
• If unsure, seek a professional Mac repair service for safe installation.

What warranty and support come with this battery?

Fancy Buying includes a 12‑month warranty covering manufacturing faults and a 30‑day money‑back period for returns. The company has a decade of industry experience and provides customer support for fit, installation questions, and warranty claims.

• 12 months warranty for manufacturing defects.
• 30‑day money return guarantee if the battery doesn’t meet expectations.
• Customer support available for fitment and troubleshooting.
• Built with A‑grade Li‑polymer cells at rated capacity.

Who is this for: This replacement battery is ideal for owners of Late 2009 or Mid 2010 13" MacBook Unibody laptops (A1331 / A1342) who need a reliable, factory‑style battery swap to regain daily run time. It’s also a suitable option for technicians and refurbishers who want A‑grade Li‑polymer capacity with a clear fitment list and a year of warranty coverage. Verify your MacBook’s model or part number before purchase to ensure compatibility.