Reliable iPhone X, XR, XS & Max Battery Replacement
Is your iPhone X, XR, XS, or Max battery draining quickly or struggling to hold a charge? Don't let a failing battery limit your device's potential. At atlantis, we specialise in high-quality battery replacements that breathe new life into your iPhone. We don’t do "cheap" as it means fitting rubbish; we only use premium batteries from leading manufacturers, ensuring both safety and longevity. Our expert technicians have been fixing iPhones since the 3G models, providing the know-how needed to ensure you enjoy long hours of uninterrupted usage once again.
Models Support List
This specialist battery service covers the entire X-series flagship range:
- iPhone X
- iPhone XR
- iPhone XS
- iPhone XS Max
Need a screen too? Check out our iPhone Screen Repair Page.
Why Choose Us?
- Premium Quality Cells: We prioritise quality and performance over cheap, poorly made alternatives.
- Three Best Rated: Atlantis is a recognized leader in Canterbury iPhone repairs.
- 15+ Years Experience: Our engineers have been repairing Apple devices since 2009.
- 1-Year Warranty: Every battery comes with a full 12-month return-to-base warranty.
- Free Screen Protector: We include a free protector with every battery replacement service.
Meet the Atlantis Senior Engineering Team

The internal layout of the iPhone X and XS series is complex, featuring a L-shaped battery design. Our senior engineers use precision tools to safely remove the old cell without damaging the delicate wireless charging coils or logic board. We ensure every replacement is seated perfectly and secured with factory-spec adhesive to prevent internal rattling and heat issues.
Technical Details
We use high-specification Lithium-ion cells designed for Apple hardware:
- Standard Capacity: Matches or exceeds original mAh ratings.
- Safety Circuits: Built-in protection against overcharging and overheating.
- Cycle Life: Designed to provide 500+ full charge cycles.
- Installation: Includes fresh water-resistance seals where applicable.
Process & Protection
- Initial Testing: We check your current battery health and charging port.
- Safe Opening: Using heat and precision tools to bypass the factory seal.
- Battery Exchange: Clean removal of the old cell and installation of the premium new battery.
- Sealing: Re-applying the adhesive gasket to maintain dust protection.
- Final Stress Test: Ensuring the device charges correctly and holds power under load.
Common Symptoms Fixed
- Fast Draining: Battery percentage drops rapidly during use.
- Unexpected Shutdowns: Phone turns off even when showing 20-30% charge.
- Service Warning: "Battery Health" settings show a "Service" or "Degraded" message.
- Swollen Battery: The screen is being pushed up or the frame is expanding.
If your phone won't turn on at all, it might be a charging issue. See our X-Series troubleshooting guide.
Verified UK Customer Reviews
⭐ "110% Recommend"
"Popped into this shop this morning as my phone was having issues charging, was welcomed by a very friendly man who helped me and didn't charge for the service. Would 110% recommend!" — Google Review
⭐ "Like a New Phone"
"Had my iPhone XR battery replaced at the Canterbury store. It was done in 45 minutes and now my phone lasts the whole day again. Excellent price and service." — Mark T.
⭐ "Brilliant Mail-in Service"
"I was worried about sending my XS Max away, but the free tracked label made it so easy. Had it back in 3 days with a fresh battery. Highly impressed." — Jane D.
Premium UK-Wide Tracked Delivery
- 1. Free Label: Receive a pre-paid Royal Mail tracked label via email after checkout.
- 2. Safe Shipping: Drop your securely packed iPhone at any UK Post Office.
- 3. Fast Return: Repaired in our workshop and returned via tracked delivery, usually within 3-5 working days.
Questions and Answers
Will I lose my data? Battery replacements do not typically affect your data. However, we always recommend a backup before any repair.
How long does it take? If you visit our Canterbury shop, we usually complete the swap in under an hour. Postal repairs take 3-5 working days.
Is there a warranty? Yes, we provide a 1-year warranty on the battery part itself for any manufacturing defects.
People Also Ask (Q&A)
How much is an iPhone X battery replacement UK? At Atlantis, the cost is a fixed £45.00 including the premium battery and 1-year warranty.
Why is my iPhone showing a "Service" message? This appears when your battery capacity drops below 80%. A replacement will remove this warning and restore performance.
Does a new battery make an iPhone faster? Yes, if your battery was degraded, iOS may have been "throttling" the CPU. A new battery allows the phone to run at full speed.
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