When and why you might need to remove your iPhone battery

You may need to remove your iPhone battery if it no longer holds a charge, swells visibly, or drains faster than normal even after a restart. A battery that won't charge at all, or one that causes your phone to shut down at 20 percent remaining, has likely reached the end of its lifespan. iPhones are designed so the battery is not user-replaceable without opening the phone, which means you will need either Apple's service or a third-party repair shop to do this work.

Before you remove the battery, back up your data using iCloud or a computer. Power off your phone completely. If your battery is swollen, do not attempt removal yourself—take it to Apple or a professional repair shop when ready, as a damaged battery can leak or catch fire.

Key Takeaways

  • iPhone batteries are sealed inside the phone and cannot be removed without opening the case, which requires tools and experience most people do not have.
  • Apple offers battery replacement at an Apple Store or through mail-in service, and the cost depends on your phone model and whether it is under warranty.
  • Third-party repair shops can replace batteries for less money than Apple, but quality and warranty coverage vary widely.
  • If your battery is swollen or visibly damaged, do not attempt to remove it yourself—take the phone to a professional when ready.
  • You can check your battery health in Settings > Battery > Battery Health & Charging to see if replacement is necessary.

How to check if your battery needs replacement

Open Settings, then tap Battery, then Battery Health & Charging. You will see a percentage labeled Maximum Capacity. This number tells you how much charge your battery can hold compared to when it was new. A battery at 80 percent or higher is considered normal. If it drops below 80 percent, your phone may drain faster or shut down unexpectedly, and replacement becomes worth considering.

You will also see a Condition section that says either Normal or Service Recommended. If it says Service Recommended, the battery has degraded enough that Apple or a repair shop can replace it. This does not mean your phone will stop working when ready, but performance will decline over time.

Getting a battery replacement at Apple

Visit apple.com/support or call Apple Support to set up a Genius Bar appointment at an Apple Store near you. You can also mail your phone to Apple for repair. During the appointment, a technician will confirm the battery needs replacement and perform the work, which usually takes one to two hours if you wait in the store.

The cost varies by model. As of 2024, out-of-warranty battery replacement ranges from around $69 for an iPhone SE to $99 for a Pro Max model, though these prices change. If your phone is under warranty or covered by AppleCare+, the replacement may be covered at no cost. Apple will also run diagnostics to check for other problems while your phone is open.

Using a third-party repair shop

Independent repair shops and chain retailers like Best Buy's Geek Squad offer battery replacement for less than Apple charges—typically $40 to $80 depending on the model. Before you choose a shop, check online reviews and ask whether they use original Apple batteries or third-party batteries. Original batteries last longer and are less likely to cause problems.

Ask the shop what warranty they offer on the replacement battery. Reputable shops usually may provide the battery for at least 90 days. Avoid shops that cannot tell you what brand of battery they use or that offer no warranty. If something goes wrong after replacement, you will have no recourse with a shop that disappears or refuses to stand behind the work.

What happens during battery removal and replacement

The technician will power off your phone and remove the display, which is glued to the frame. They will then disconnect the battery connector and use a heat gun or adhesive solvent to loosen the battery, which is also glued down. The old battery is carefully pried out, and a new one is installed in its place. The display is then reattached and sealed.

The entire process takes 30 minutes to two hours depending on the model and the shop's experience. Newer iPhones with larger batteries and more complex internal layouts take longer. During this time, your data remains on the phone and is not affected by the battery replacement.

Preparing your phone before you hand it over

Back up your phone to iCloud or to a computer using Finder (Mac) or iTunes (Windows) before you go to the repair shop. Power off your phone completely. Remove any case or screen protector so the technician can access the edges of the phone. If you have a passcode, Face ID, or Touch ID enabled, let the shop know—they may need to verify your identity before opening the phone.

Bring your receipt or proof of purchase if your phone is under warranty. If you have AppleCare+, bring your policy number or account information. These documents can affect the cost of the repair.

After the battery is replaced

When you get your phone back, charge it fully before using it heavily. The new battery will need a few charge cycles to reach its full capacity. You may notice the phone feels slightly warmer during the first few days—this is normal as the battery settles in. Check Battery Health & Charging again after a week; it should show close to 100 percent Maximum Capacity.

If the phone shuts down unexpectedly, drains faster than before, or the battery swells again within the warranty period, contact the shop or Apple when ready. A properly installed battery should perform normally for at least two to three years.

Frequently Asked Questions

Can I replace my iPhone battery myself?

You can, but it requires opening the phone, which voids your warranty and risks damaging the display, logic board, or other components if you do not have the right tools and experience. Most people should use Apple or a professional repair shop instead.

How long does a new iPhone battery last?

A new battery should retain 80 percent capacity for about two to three years under normal use. After that, it will begin to degrade. The exact timeline depends on how often you charge it and whether you let it drain completely.

Will replacing the battery erase my data?

No. The battery is a separate component, and replacing it does not affect your photos, messages, apps, or settings. Your data stays on the phone throughout the repair.

Is it cheaper to replace the battery or buy a new phone?

Battery replacement costs $40 to $100, while a new iPhone costs $400 to $1,500. Unless your phone has other serious damage, battery replacement is almost always the cheaper option and extends the phone's life by several more years.

What should I do if my battery is swollen?

Stop using the phone and take it to Apple or a professional repair shop when ready. A swollen battery can leak chemicals or catch fire. Do not attempt to remove it yourself, and do not leave it plugged in or in direct sunlight while you wait for the appointment.