Yes, you can change an iPhone battery, but the method depends on your model and comfort level

You can replace an iPhone battery yourself if you have the right tools and your phone model supports it, but most people find it easier to use Apple's battery replacement service or a third-party repair shop. Apple charges between $69 and $99 depending on your model, and the process takes about an hour at an Apple Store or authorized service provider. If you choose to do it yourself, you'll need a pentalobe screwdriver, a spudger, tweezers, and a replacement battery — the actual battery swap takes 20 to 30 minutes once you've opened the phone, but the hardest part is safely removing the display without cracking it.

The choice between DIY, Apple service, and third-party repair comes down to cost, risk, and warranty protection. Apple's service is safest but most expensive. Third-party shops are cheaper but may void AppleCare+. DIY is cheapest but carries the highest risk of damaging your phone during the opening process.

Key Takeaways

  • iPhones 11 and newer have batteries held in with adhesive strips that pull out; older models use connectors you unplug, making newer phones harder to open yourself.
  • Apple's official battery replacement costs $69 to $99 and preserves your warranty, while third-party shops often charge $30 to $60 but may void AppleCare+ coverage.
  • Opening your iPhone yourself requires a pentalobe screwdriver, spudger, tweezers, and a heat gun or hair dryer to soften the adhesive around the display.
  • If your iPhone is still under warranty or covered by AppleCare+, Apple will replace the battery for free if it holds less than 80 percent of its original capacity.
  • The biggest risk in DIY replacement is cracking the display when prying it open; if you slip, repair costs jump to $200 to $400 for a new screen.

Check your battery health before deciding to replace it

Your iPhone tells you how much capacity your battery has lost. Go to Settings, then Battery, then Battery Health & Charging. The number shown under "Maximum Capacity" is what matters — if it's 80 percent or higher, your battery is still in normal range. If it's below 80 percent and you have AppleCare+, Apple will replace it at no cost. If you don't have AppleCare+ but your phone is still within its one-year limited warranty, Apple will replace the battery free only if it's defective, not just worn out.

A battery at 70 to 80 percent capacity usually still works fine for most people — it just won't hold a charge as long as it did new. If you're getting through a full day without charging, you probably don't need to replace it yet. If your phone shuts down at 20 or 30 percent battery, or if it drains noticeably faster than it did a month ago, that's when replacement makes sense. Check this number every few months to track the decline and plan ahead.

Apple's official battery replacement service

The safest route is Apple's own service. Book an appointment at an Apple Store or an Apple Authorized Service Provider through apple.com/support or the Apple Support app. You'll need your phone and a valid ID. Turnaround is usually same-day or next-day, though busy locations may take longer. The cost is $69 for iPhone 15, 14, 13, and 12 models; $79 for iPhone 11 and XS models; and $99 for older phones. If you have AppleCare+ and your battery capacity is below 80 percent, the service is free.

Apple replaces the entire battery unit and tests it before returning your phone. Your warranty is preserved, and if something goes wrong during the replacement, Apple covers it. This is the best choice if you want zero risk and don't mind waiting a few hours or paying the service fee. You can also mail your phone to Apple if no local store is convenient, though that adds several days to the process.

Third-party repair shops and mail-in services

Independent repair shops and mail-in services like iFixit, Puls, and local phone repair stores typically charge $30 to $60 for battery replacement. Turnaround is often faster than Apple — sometimes same-day at a local shop, or three to five days for mail-in services. The trade-off is that using a non-Apple service may void your AppleCare+ coverage, depending on your plan's terms. Check your AppleCare+ agreement or call Apple Support to confirm before going this route.

Quality varies widely. A reputable shop will use OEM (original equipment manufacturer) batteries or high-quality third-party batteries, test the phone after replacement, and offer a warranty on the work. Before choosing a shop, read recent reviews on Google or Yelp, ask whether they use OEM batteries, and confirm what warranty they offer. Avoid shops that can't answer these questions clearly or pressure you into extra services you didn't ask for.

DIY battery replacement: tools, steps, and risks

If you decide to replace the battery yourself, you'll need the right tools. A pentalobe screwdriver (size P2) opens the bottom screws; a spudger (a plastic prying tool) separates the display from the frame; tweezers help remove small connectors; and a heat gun or hair dryer softens the adhesive holding the display. You'll also need a replacement battery — buy one from iFixit, Amazon, or another electronics supplier that lists your exact iPhone model. Prices range from $15 to $40 depending on the model and seller. Many kits bundle the tools and battery together for $30 to $50.

The basic steps are: power off your phone, remove the two pentalobe screws at the bottom, heat the edges of the display to soften the adhesive, carefully pry up the display without cracking it, disconnect the display connector, remove the battery connector (on older models) or peel away the adhesive strips (on newer models), install the new battery, reconnect everything, and reassemble. The entire process takes 20 to 30 minutes if you've done it before, or 45 minutes to an hour if you're new to phone repair. Watch a video tutorial for your exact iPhone model first — each generation has slightly different steps, and seeing it done helps you avoid mistakes.

The biggest risk is cracking the display when you pry it open. If you slip or explore too much force, you'll crack the screen, and replacing it costs $200 to $400. For this reason, many people who are uncomfortable with delicate work choose a professional service instead. Take your time, use gentle pressure, and heat the adhesive thoroughly before prying — rushing this step is what causes breaks.

Differences between iPhone models: what you need to know

Older iPhones (iPhone 8 and earlier) have batteries held in place with a connector you straightforward unplug after opening the phone. These are easier to replace because you don't have to deal with adhesive. iPhone X, XS, and 11 models use adhesive strips that you pull to remove the battery — this is trickier but still manageable. iPhone 12 and newer use stronger adhesive and a more complex internal layout, making DIY replacement harder and riskier for someone without experience.

If you have an iPhone 15 or 14, Apple's service is probably your best bet unless you've repaired phones before. If you have an iPhone 8 or earlier, DIY replacement is more forgiving because the battery connector is straightforward. Check iFixit's repair guide for your model before committing — if the guide shows more than 15 steps, consider professional service instead. The repair difficulty rating on iFixit also tells you how hard the job is; anything rated "moderate" or higher is worth paying a professional to handle.

What to do if your battery is swelling or damaged

If your battery is visibly swollen, leaking, or damaged, do not attempt DIY replacement. A swollen battery can catch fire or explode if punctured. Stop using the phone when ready, power it off, and take it to Apple or a professional repair shop. Tell them the battery is swollen so they can handle it safely. Apple will replace it at no extra cost if the swelling is a defect, even outside warranty, because a defective battery is a safety issue.

If your phone has been dropped or water-damaged, the internal components may be corroded or misaligned. Opening it yourself could cause further damage or create electrical hazards. In these cases, professional diagnosis is worth the cost because a technician can spot problems you might miss and avoid making them worse. A swollen battery combined with water damage is especially dangerous — let a professional handle it.

Frequently Asked Questions

How long does a new iPhone battery last?

A new battery should hold 100 percent capacity. After one year of normal use, it typically drops to 95 to 98 percent. After two years, expect 85 to 90 percent. After three years, most batteries are at 75 to 85 percent. The rate depends on how often you charge, whether you let it drain to zero, and how hot your phone gets during use.

Can I replace the battery myself if my phone is under warranty?

Yes, but it will void your warranty. If your phone is still under Apple's one-year limited warranty and the battery is defective, Apple will replace it free. If you open the phone yourself, Apple may refuse warranty service on other issues later. If you have AppleCare+, use Apple's service to keep coverage intact.

What's the difference between OEM and third-party batteries?

OEM batteries are made by the original manufacturer. Third-party batteries are made by other companies. OEM batteries are more reliable and last longer, but cost more. Quality third-party batteries work fine, but cheap ones may not hold a charge as long or may fail sooner. Reputable repair shops use good third-party batteries or OEM batteries.

Will replacing the battery fix my phone if it's slow or freezing?

Maybe. If your phone is slow because the battery is worn out, iOS throttles performance to protect the battery, and a new battery can restore speed. If slowness is caused by a full storage drive or old software, a new battery won't help. Check your storage in Settings > General > iPhone Storage, and make sure you're running the latest iOS version before replacing the battery.

How do I know if a repair shop is trustworthy?

Look for shops that are Apple Authorized Service Providers (listed on apple.com/support), have good reviews on Google or Yelp with recent comments, use OEM or named third-party batteries, offer a warranty on their work, and can explain what they're doing. Avoid shops that pressure you to buy extra services, can't answer questions about battery quality, or have mostly negative reviews.