MacBook Air 13" M3 A3113 (2024) Battery Replacement
Compatible models: A3113, EMC 8748
The MacBook Air 13-inch M3 arrived in 2024 with Apple's third-generation Apple Silicon chip, Wi-Fi 6E and improved graphics performance in the same slim chassis as the M2. Apple claims up to 18 hours of battery life. That figure is achievable on low-demand tasks, but sustained video calls, heavy browser sessions and AI-assisted workflows in apps like Final Cut or Logic push consumption higher. When the battery begins to degrade, the gap between Apple's claimed 18 hours and real-world runtime becomes the daily frustration that brings most customers in.
- Turnaround: Same day where possible, subject to stock and workload
- 6-month warranty on the replacement battery
- Walk-in near Liverpool Street Station or use our UK mail-in service
Signs your MacBook Air 13" M3 battery may need replacing
The M3 chip is more efficient than M2 under sustained load, which means a healthy battery genuinely delivers closer to the advertised figures. When degradation sets in, the drop is all the more obvious. Users who chose the M3 for its claimed longevity feel the change acutely.
- Battery draining significantly faster than it used to
- Device shutting down unexpectedly, particularly at lower charge percentages
- Only running reliably when connected to power throughout the day
- Battery percentage dropping suddenly or behaving inconsistently
- MacBook running warmer than usual during normal tasks
- Screen lifting slightly from the chassis (can indicate a swollen battery, book as soon as possible)
- Battery percentage not reflected accurately in the menu bar, jumping unexpectedly during use
- Go to Apple Menu > About This Mac > System Information > Power, then check Cycle Count and Condition
What is included
- Safe removal of the bottom case and existing battery
- Fitting of a quality replacement 52.6Wh battery cell
- Post-repair charging and power stability checks
- Full function test covering power, MagSafe 3 charging, keyboard, trackpad and display
- 6-month warranty on the replacement battery
How to confirm your model
Go to Apple Menu > About This Mac > System Report > Hardware Overview to check your model identifier.
This repair covers: A3113, EMC 8748.
The model number is also printed on the underside of the machine near the hinge. If you are unsure, bring the MacBook in and we will confirm the model before starting any work.
The A3113 uses MagSafe 3 as its primary charging connection and also supports charging through either USB-C Thunderbolt port. The model identifier A3113 is shown in Apple Menu > About This Mac.
Our repair process
- Book or drop in: Book online or visit us near Liverpool Street Station. Mail-in customers can send their MacBook from anywhere in the UK by tracked post.
- Assessment: We inspect the machine before starting. If we find anything unexpected, we tell you before proceeding.
- Battery replacement: We remove the bottom case, extract the old battery and fit the replacement, then reassemble and reseal carefully.
- Testing: Full post-repair checks covering power, charging and all core functions before the machine is returned.
- Collect or return post: Pick up in store or we return your MacBook by secure tracked post.
Why choose Square Repair?
- Established repair centre near Liverpool Street since 2015
- 6-month warranty on every battery replacement
- No data loss, battery replacement is a hardware-only procedure
- Post-repair testing before handover on every job
- Transparent pricing with no hidden charges
- Walk-in and UK mail-in options available
Before you book
- If the chassis is bent or the machine has been previously opened, we will advise on any complications before starting
- If there has been liquid exposure, a battery replacement may not resolve all issues. We confirm our findings before proceeding
- If the screen is lifting slightly from the chassis, book as soon as possible. This can indicate a swollen battery that needs urgent attention
- If the machine is completely dead, we carry out a diagnosis before confirming the repair
Related MacBook Air 13" M3 repairs
- All MacBook Air 13" M3 repairs
- Book your battery replacement
- How our repair service works
- MacBook diagnosis service
Book your repair
Walk-ins are welcome during opening hours near Liverpool Street Station. For mail-in repairs, place your order online so we can track your MacBook from arrival. Any questions about the battery options for your MacBook Air 13" M3? Contact us and we will help.