A worn iPhone 16 Pro Max battery can shut the phone down early, charge slowly or swell over time. We fit a quality replacement and check charging and power stability before returning it. Battery jobs are quick and leave your setup untouched.
- Turnaround: Same day where possible, subject to stock and workload
- 6-month warranty on this repair
- Walk-in near Liverpool Street Station or UK mail-in service
Signs your iPhone 16 Pro Max needs this repair
- Slow or stalling charging
- Only reliable while plugged in
- Needing a top-up by midday
- Screen or back lifting from a swollen cell
- Percentage jumping around
What is included
- Safe removal of the worn battery
- Fitting of a quality replacement cell
- Charging and power-stability testing
- Full function check before handover
- 6-month warranty
How to confirm your model
Check the model number in your device settings, or bring it in and we will confirm the exact iPhone 16 Pro Max before any work begins. If you are unsure which repair you need, our team will advise.
Before you book
- If we discover water damage during your repair that affects the work, we will stop and let you know. A water damage diagnosis is applicable at the current fee, and we will confirm this with you before we proceed.
Repair options and related services
book your repair, use our UK mail-in service, view all iPhone 16 Pro Max repairs.
Frequently Asked Questions
How do I know whether the iPhone 16 Pro Max battery needs replacing?
Rapid drain, unexpected shutdowns, battery-percentage jumps or swelling can indicate a worn or faulty battery. We check the symptoms before fitting the replacement.
Will a battery replacement erase my data?
No. Battery replacement is a hardware repair and does not normally require a factory reset. Keeping a current backup is still sensible before any repair.
What battery option will be fitted?
The available option is shown on the product page. Where more than one option appears, compare the descriptions and choose the option that suits the repair.
How long does the repair take?
This product is set up for same-day fitting. Book before travelling so we can confirm the repair slot and the current part availability.
Can I use the walk-in or mail-in service?
Yes. Book a walk-in visit near Liverpool Street Station or send the device through the UK mail-in service.
What warranty is included?
The completed battery replacement includes a 6-month warranty covering the fitted battery and workmanship, subject to the warranty terms.