NinjaBatt MacBook Pro 13" A1278 A1322 Replacement Battery

NinjaBatt's replacement battery for MacBook Pro 13" (A1278/A1322) restores reliable runtime with a rated 63.5Wh capacity at 10.95V.

If your older 13-inch MacBook Pro is showing reduced battery life, slow shutdowns, or won’t hold a charge, this direct-fit NinjaBatt replacement brings new power without the cost of a new laptop. Designed for models identified by A1278 and A1322 chassis numbers from 2009 through mid‑2012 (excluding A1278 2008), the pack uses high-grade Li‑Po cells and protective circuitry to match factory-style performance and safety.

Which MacBook Pro models and identifiers does this battery fit?

This NinjaBatt unit is compatible with a wide list of 13" MacBook Pro configurations that use A1278 or A1322 designation across several production years. Always confirm your Mac’s model/year via About This Mac before ordering to avoid incorrect fitment.

• Fits MacBook Pro 13" models listed with A1278 or A1322 (2009–Mid 2012 and Early/Late 2011/2010).
• Compatible part numbers include commonly used OEM codes such as 661‑5557, 020‑6547‑A, and others noted in product details.
• Not compatible with A1278 2008 models — verify model year first.

How long will this replacement battery keep my Mac running?

The battery is rated at 63.5Wh and 10.95V, offering a charge capacity comparable to original equipment for these MacBook Pro models. In typical mixed-use scenarios you should expect significantly improved run times versus a degraded OEM cell, subject to settings and workload.

• 63.5 watt‑hours gives restored runtime close to original factory levels.
• Grade A Li‑Po cells are rated for up to approximately 500 charge cycles.
• Actual battery life depends on screen brightness, apps, and power settings.

What build quality and protections are included?

NinjaBatt assembles these replacement packs using quality components and integrated protection circuitry to help prevent overcharge, over‑discharge, short circuits, and overheating. Each unit is tested to meet performance expectations and is backed by a 12‑month warranty for peace of mind.

• Top‑grade battery cells combined with reinforced circuit boards for durability.
• Standard safety features to protect the laptop and battery health.
• 12‑month manufacturer warranty covering defects and premature failure.

How do I install the battery and what should I check before purchase?

Installation typically requires a few small tools and careful handling of the internal connector and screws. Before buying, verify your Mac’s model identifier in the Apple menu and make sure the listed part numbers match those compatible with your machine.

• Check “About This Mac” for the exact model and year first.
• Follow a step‑by‑step guide or video if you’re new to laptop disassembly.
• Work on a clean, static‑free surface and keep track of screws and brackets.

Who is this for: This NinjaBatt replacement battery is aimed at owners of 13" MacBook Pro models from 2009 through mid‑2012 who need a dependable, cost‑effective alternative to replacing their laptop. It suits users wanting near‑OEM runtime, a long cycle life for everyday productivity, and the reassurance of safety testing plus a 12‑month warranty. Ideal for students, professionals, and repair shops restoring older MacBooks to full mobile use.