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MacBook Air Battery Replacement

MacBook Air Battery Replacement

Power your MacBook Air for longer.

Premium, model-specific replacement batteries for every MacBook Air — 11-inch, 13-inch and 15-inch, Intel and Apple Silicon. Tested, warranted and easy to fit.

Model-specific perfect fit
DIY-friendly batteries
Long-life lithium-ion cells
1 Year warranty
Local certified technicians

Find your MacBook battery

Enter your Apple Model ID or A-number — or filter by screen size and year. Some A-numbers cover more than one model, so check the year to pick the exact match.

? How do I find my Mac’s A number?

How to Find Your MacBook’s A Number

The A number is printed on the underside of your MacBook’s bottom case. Flip it over and look for “Model A” followed by 4 digits.

1

Flip your MacBook over

Turn your MacBook upside down so the bottom case is facing up.

2

Find the model label

Look for the small text near the centre of the bottom panel. You’ll see “Model AXXXX” — the 4-digit number after the “A” is your A number.

MacBook bottom case showing the Model A number location
Pro tip: The A number on your bottom case is exactly what you type into the Battery Finder above. Enter it and we’ll find the right battery instantly.
Screen size
Year
No matching models. Check your spelling, or how to find your Model ID.
Not confident replacing it yourself? We’ll do it for you.

Our certified technicians at Macfixit Australia can replace your MacBook battery professionally. Mail your MacBook to us from anywhere in Australia — we’ll install, test, and ship it back within 1–2 business days.

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Battery HealthService Recommended
Maximum Capacity72%

Is it time to replace your battery?

A replacement battery can restore runtime, reduce shutdowns and help your MacBook feel reliable again.

Battery says “Service Recommended”
Maximum capacity is below 80%
MacBook drains quickly or shuts down early
Trackpad or case is lifting from swelling

Swollen Battery Warning

If your trackpad feels raised or the case appears warped — stop using the Mac immediately. A swollen lithium battery is a fire and safety hazard. Replace it as soon as possible.

Swollen MacBook battery lifting the trackpad out of the case

Why buy from MacFixit?

Local support, tested products and the option of professional installation by our certified technicians in Balwyn, VIC.

High-Quality Batteries

Designed for stable charging and reliable runtime.

Warranty

1-Year Australian replacement warranty.

Local support

Help from our local certified technicians.

Install option

Local installation or mail-in service.

Battery Questions

How to Check Battery Health
  • macOS Ventura+: Apple menu → System Settings → Battery → Battery Health
  • Older macOS: Hold Option → click the battery icon in the menu bar
  • Detailed info: Apple menu → System Information → Power
  • Check the cycle count and condition
Battery ConditionService Recommended
Mac batteries, like all rechargeable batteries, are consumable components that become less effective as they age.
When to Replace Your Battery
  • Maximum capacity below 80%
  • Cycle count approaching 1,000 (500 for older models)
  • Mac shuts down unexpectedly (often the battery — sometimes needs proper diagnosis)
  • Battery swelling (trackpad lifting)
  • Service Battery warning in the menu bar
Battery100%
Service Recommended
Power Source: Battery
3hr 24min remaining
Battery Preferences…
How long does a Mac battery last?
It depends on how you use your Mac — how you charge it and which model you have. As a rough guide, expect around 3–5 years before a replacement is needed. If you mostly use it plugged in as a desktop you’ll go through fewer charge cycles, but that doesn’t necessarily mean the battery will last longer.
What is a good battery cycle count?
Cycle count is only one indicator of battery health. A Mac that has been plugged in most of the time can show a low cycle count yet still have a degraded battery, so there’s no single “good” number. As a general rule fewer cycles is better — but it really depends on how you’ve charged and used the device.
Is a swollen or bloated battery dangerous?
Yes. A failing lithium battery can swell even while macOS reports a “Normal” condition. If your trackpad is lifting or the case is separating, stop using the Mac immediately — a swollen battery is a fire and safety hazard. Replace it promptly to avoid damaging other components.
How good are Macfixit batteries?
Macfixit batteries are high-quality third-party replacement cells — tested for safety and reliability, and backed by a 1-Year Australian warranty plus a 30-Day Money-Back Guarantee.
Do you also install Apple Original batteries?
Yes — we can install genuine Apple Original batteries. The process, timeframe and pricing are different from our standard service, so please contact us for a quote and to check eligibility for your model.