
Mac Repair London carries out a battery replacement on the MacBook Pro M3, M3 Pro & M3 Max from our Central London workshop, for home users and businesses.
The battery sits in the top case with pull tabs and adhesive. We fit a new battery and test charging via MagSafe 3 and USB-C.
Batteries on M3 models are generally still healthy, so an early failure usually has a reason: damage, heat or a charging fault. We look for that before replacing it.
About this model: The M3 MacBook Pro family (late 2023) includes the entry 14-inch M3 (A2918), the 14-inch M3 Pro/Max (A2992) and the 16-inch M3 Pro/Max (A2991). The space black finish debuted here.
Signs it needs a battery replacement
- Service recommended
- Short run time
- Swelling
- Not charging
How we do it
Before quoting, we check the battery’s cycle count and condition, and test the charger and charging port, because a charging fault can look exactly like a dead battery.
Adhesive holds the pack to the case, so patience matters more than speed. We protect the trackpad and speaker cables while the old cells come out.
Once it’s in, we run a charge and discharge check, confirm macOS reports the battery as normal, and send the old one for recycling.
At a glance
| Years | 2023 |
|---|---|
| Processor | Apple M3, M3 Pro or M3 Max |
| Storage | Soldered to the logic board |
| Memory | Unified memory inside the chip package (not upgradeable) |
| Battery | Held with adhesive |
| Power / charging | MagSafe 3, Thunderbolt, HDMI, SDXC |
Before you bring it in
Check System Information (or System Settings > Battery on newer macOS) for the cycle count and condition, and jot them down. If the case is bulging, stop charging it and bring it in straight away.
Which model do you have?
This page covers the MacBook Pro 14 & 16-inch M3 family (2023) (Mac15,3 / 15,6–15,11; A2918, A2992, A2991). Open the Apple menu, choose About This Mac, then More Info or System Report. The A-number is also printed in small text on the underside. Not sure? Bring it in and we’ll identify it for you.
Price
We give you a fixed quote for your exact model after a free initial assessment, before any work starts. All prices are subject to inspection, and nothing is done without your approval.
Questions we’re often asked
How long will the new battery last?
A new battery should give you close to the run time it had when new, and typically lasts several years with normal use. Keeping it away from long periods at 100% charge and high heat helps it age more slowly.
Do you need to erase my Mac?
No. Your files stay where they are. We only need your password if you’d like us to test macOS after the repair, and we’ll ask before we log in.
How much does it cost?
See the price section above. We always quote before starting, and if we can’t fix it, you don’t pay for the repair.
Book a repair
Call us on 020 7394 2528 or email info@mac-repair.london to arrange a time to drop it off.

