Fancy Buying MacBook Pro 15.4" Replacement Battery A1321/A1286 (Mid 2009–2010) 73Wh 5600mAh with Screwdrivers

High-capacity A1321/A1286 replacement battery for 15.4" MacBook Pro (Mid 2009 and Mid 2010) that restores portable runtime with built-in protection circuits.

If your MacBook Pro model number matches the Mid 2009 or Mid 2010 15.4" A1286/A1321 family, this Fancy Buying Li-Polymer battery restores reliable power and offers protections found in newer cells. The pack delivers 73Wh (5600mAh) at 10.95V across six A+ cells and includes three screwdrivers so you can replace the battery at home. Before buying, confirm your machine's model identifier (e.g., MacBookPro5,3 / MacBookPro6,2) — this battery is not compatible with 2011–2012 A1286 variants.

How do I confirm this battery fits my MacBook Pro?

Compatibility depends on your MacBook's model identifier and the machine's release year. Check "About This Mac" or the bottom case model number to match the listed Mid 2009 and Mid 2010 part numbers and model IDs.

• Works with MacBookPro5,3 / MacBookPro5,4 (Mid 2009) and MacBookPro6,2 (Mid 2010).
• Compatible Apple part numbers include MC118LL/A, MB985LL/A, MB986LL/A, MC371LL/A, MC372LL/A, MC373LL/A.
• Not compatible with 2011 or 2012 A1286 models — verify year before purchase.

What are the battery's technical specifications and protections?

This Fancy Buying battery uses Li-Polymer cells to deliver 73Wh capacity at 10.95V with six high-grade A+ cells. The pack includes built-in circuitry to protect against common battery hazards and supports many recharge cycles when used correctly.

• Capacity: 5600mAh / 73Wh; Voltage: 10.95V; 6 A+ cells.
• Protection: overcharge, over-discharge, over-temperature, and short-circuit safeguards.
• Durability: rated for up to about 500 recharge cycles under normal conditions.

How difficult is installation and what comes in the box?

The battery is designed for user replacement with moderate DIY skills and the included screwdrivers. Follow static-safe procedures and a step-by-step guide (available online) or seek professional installation if you prefer not to open your MacBook.

• Package includes the replacement A1321/A1286 battery plus three free screwdrivers for removal and installation.
• Expect to power down, remove the bottom case, disconnect the old battery connector, and swap in the new pack.
• Keep screws organized and avoid bending connectors; if unsure, have an authorized technician install it.

What warranty, returns and safety tips should I know?

Fancy Buying offers a one-year replacement warranty plus a 60-day return window for peace of mind. Always follow charging guidelines and avoid extreme heat; proper use preserves cell life and safety features built into the pack help reduce risk.

• Return policy: 60-day returns; 12-month replacement warranty for defects.
• Safety: Do not puncture, expose to fire, or use bent/damaged cells; allow qualified repair if damage is present.
• Support: Contact the seller via the store "ask a question" link for returns or warranty claims.

Who this is for: This battery is aimed at MacBook Pro 15-inch owners with Mid 2009 or Mid 2010 A1286/A1321 models who need a high-capacity, protected replacement to restore battery life without replacing the entire laptop. It suits DIY-savvy users comfortable opening their machine, as well as repair shops looking for a drop-in replacement part backed by a limited warranty. If your machine is from 2011 or later, or your model identifier differs, search for the correct year-specific battery to ensure safe compatibility.