Yes, you can replace your iPhone battery, but where and how you do it matters for cost, warranty, and whether the phone stays water-resistant
Apple will replace your iPhone battery for a flat fee at any Apple Store or Apple Authorized Service Provider. You can also mail your phone to Apple. If your iPhone is still under warranty or covered by AppleCare+, the replacement may be free. Outside of Apple, third-party repair shops offer battery replacement, usually for less money, but they may not use genuine Apple parts and the work typically voids any remaining warranty. Replacing the battery yourself using a kit from an electronics retailer is possible but requires opening the phone, which risks damage to other components and permanently breaks the water-resistance seal.
Key Takeaways
- Apple charges a flat fee for out-of-warranty battery replacement (the amount varies by iPhone model, typically $50 to $80), and the service is free if your phone is under warranty or you have AppleCare+.
- Third-party repair shops usually charge less than Apple but may use non-genuine batteries and will not restore your warranty if something goes wrong during the repair.
- DIY battery replacement kits exist but require you to open the phone yourself, which can damage the display, logic board, or other parts, and will permanently compromise water resistance.
- Apple's mail-in battery service takes about one week and costs the same as in-store replacement, with no shipping fee if your phone qualifies for warranty coverage.
- A degraded battery that no longer holds a charge is not a safety issue and does not require when ready replacement, but performance will decline as the battery ages.
Apple's Battery Replacement Service and Cost
Apple replaces iPhone batteries at any Apple Store or Apple Authorized Service Provider. You can walk in without an appointment at most locations, though wait times vary. The technician will run a diagnostic to confirm the battery is the problem, then replace it with a genuine Apple battery while you wait — the whole process usually takes 30 minutes to an hour.
The cost depends on your iPhone model and warranty status. Out-of-warranty replacement runs $50 to $80 for most current models. If your phone is within one year of purchase, covered by AppleCare+, or the battery failure is a known defect Apple has acknowledged, the replacement is free. You can check your warranty status on Apple's website by entering your serial number.
Apple also offers mail-in service through its website. You start a repair request, ship the phone to Apple, and they return it within about a week. The cost is the same as in-store, and shipping is free if you have AppleCare+ or the repair is covered under warranty. If you pay out of pocket, you cover return shipping.
Third-Party Repair Shops: Lower Cost, Less Certainty
Independent repair shops and chain retailers like Best Buy's Geek Squad offer iPhone battery replacement for $30 to $60, undercutting Apple's price. The work is usually done the same day or within 48 hours. Many of these shops are competent and use quality parts, but there is no may provide — some use refurbished or aftermarket batteries that may not last as long as a genuine Apple battery.
The trade-off is warranty. If a third-party shop replaces your battery and something else breaks during the repair, Apple will not cover it under warranty. If the new battery fails, you have recourse only with the repair shop, not with Apple. Some shops offer their own warranty on the battery (typically 30 to 90 days), but this is shorter than Apple's standard coverage.
Before choosing a third-party shop, check reviews on Google or Yelp specific to battery replacement, and ask whether they use genuine Apple parts or aftermarket batteries. Ask what warranty they offer on the work itself.
DIY Battery Replacement: Why It Usually Backfires
Battery replacement kits are sold online and in electronics stores for $20 to $40. They include a replacement battery, adhesive strips, and tools like a pentalobe screwdriver and plastic pry tools. In theory, you can open the phone, disconnect the old battery, remove the adhesive, install the new one, and close it back up.
In practice, this is where most DIY attempts go wrong. The iPhone's display is glued to the frame with strong adhesive. Prying it open risks cracking the screen or damaging the digitizer underneath, which costs $200 to $300 to replace. The battery itself is also glued down with adhesive strips that are difficult to remove without pulling on the battery connector, which can damage the logic board. Even if you succeed, the water-resistance seal — created by adhesive around the edges and gaskets around the battery compartment — is broken once you open the phone. Your iPhone will no longer be water-resistant.
If something goes wrong during a DIY repair, Apple will not fix it under warranty. You will have to pay out of pocket for any damage, which often exceeds what you saved by doing it yourself.
When Your Battery Needs Replacement
iPhones show battery health in Settings > Battery > Battery Health & Charging. When the battery capacity drops below 80 percent, Apple considers it degraded. At this point, the phone may shut down unexpectedly under load, drain quickly, or feel slower because iOS throttles performance to protect the battery. You do not have to replace it when ready — a phone with 70 percent battery health is still usable — but performance will continue to decline.
If your iPhone is more than two or three years old and you are experiencing unexpected shutdowns or rapid drain, battery replacement usually restores the phone to normal speed and reliability. This is often cheaper than buying a new phone and extends the life of your current one by another year or two.
Comparing Your Options Side by Side
| Option | Cost | Time | Warranty | Water Resistance |
|---|---|---|---|---|
| Apple Store (out of warranty) | $50–$80 | 30 min to 1 hour | One year on battery | Preserved |
| Apple Mail-in Service | $50–$80 | About one week | One year on battery | Preserved |
| Third-party shop | $30–$60 | Same day to 48 hours | 30–90 days (varies) | Usually preserved |
| DIY kit | $20–$40 | 1–2 hours | None | Broken |
How to Prepare Before You Go
Before taking your iPhone in for battery replacement, back up your data. Apple does not erase your phone during battery replacement, but it is good practice. You can back up to iCloud through Settings > [Your Name] > iCloud, or to a computer using Finder (Mac) or iTunes (Windows).
Bring your phone and a valid ID. If you are using AppleCare+ or have a warranty, bring proof — your receipt, order confirmation, or the AppleCare+ documentation. If you are paying out of pocket, bring a payment method. At a third-party shop, ask in advance whether they need an appointment or if walk-ins are accepted.
If you are mailing your phone to Apple, disable Find My iPhone first (Settings > [Your Name] > Find My > Find My iPhone > toggle off). This prevents Apple from being locked out during the repair. Include a note with your contact information and a description of the issue.
Frequently Asked Questions
How long does an iPhone battery last before it needs replacement?
Apple designs iPhone batteries to retain 80 percent capacity after 500 full charge cycles. In real use, this usually means two to three years before the battery noticeably degrades. Heavy users who charge multiple times a day may see degradation sooner. You can check your battery's current health in Settings > Battery > Battery Health & Charging.
Will replacing the battery fix my iPhone if it keeps shutting down?
If your battery health is below 80 percent and your phone shuts down unexpectedly, battery replacement will usually fix it. If the battery is still above 80 percent, the shutdowns may be caused by something else — a software issue, a failing logic board, or a problem with the charging port. Apple's diagnostic will tell you which.
Can I replace the battery on an older iPhone model?
Yes. Apple offers battery replacement for all iPhone models that are still in use, including older ones like the iPhone 8 or iPhone X. The cost is the same regardless of age. Third-party shops also service older models, often at the same price as newer ones.
What happens to my data if I replace the battery?
Your data stays on the phone. Battery replacement does not erase anything. However, backing up before any repair is always a good idea in case something unexpected happens during the work.
Is it safe to use an iPhone with a degraded battery?
Yes, a degraded battery is not a safety hazard. The phone will not catch fire or explode. You will notice slower performance, faster drain, and unexpected shutdowns, but the phone is safe to use. You can wait to replace the battery until it becomes inconvenient, or replace it sooner if you want to restore full performance.