Yes, you can replace an iPhone battery, but the method depends on your model and whether you do it yourself or have Apple do it

Apple designs most iPhones so the battery can be removed and replaced, though the process is not as straightforward as popping off a back cover. Newer iPhones have the battery glued in place, which means a professional replacement is usually the safer choice. You have three real options: take it to Apple, visit an Apple-authorized repair shop, or do it yourself with the right tools and patience. The cost, time, and risk of damage differ significantly between each route.

Before you decide, check your iPhone model and battery health. You can see your battery's current condition in Settings > Battery > Battery Health & Charging. If your maximum capacity is below 80 percent and your phone is slowing down, a replacement will likely restore performance. If your phone is still under warranty or covered by AppleCare+, the cost may be lower or free.

Key Takeaways

  • Apple charges a flat fee for battery replacement (usually $69 to $99 depending on model), and the process takes three to five business days at most locations.
  • Apple-authorized third-party repair shops often charge less than Apple and may complete the work faster, but quality varies by shop.
  • DIY battery replacement requires a pentalobe screwdriver, a heat gun or hair dryer, spudgers, and tweezers, plus several hours of careful work and the risk of damaging the display or logic board.
  • iPhones made after 2016 have batteries glued in with adhesive strips, making removal difficult without professional equipment.
  • You can check your battery health in Settings > Battery > Battery Health & Charging before deciding whether replacement is worth the cost.

Taking your iPhone to Apple for a battery replacement

Apple replaces batteries at its retail stores and through its mail-in repair service. The cost is a flat fee that does not depend on how much damage the battery has—it is the same whether your battery is at 50 percent capacity or 1 percent. As of 2024, the fee ranges from $69 for an iPhone 15 to $99 for older models like the iPhone 14 Pro Max, though prices vary by region and may change. If your iPhone is still under the one-year limited warranty and the battery failure is a manufacturing defect (not physical damage), Apple may replace it at no cost.

The fastest way is to visit an Apple Store in person. You can book a Genius Bar appointment through the Apple Support app or the Apple website. Most locations can start the repair the same day, though the actual replacement takes one to three hours. You will need to leave your phone with them. If you do not have a nearby Apple Store, you can mail your iPhone to Apple through their repair portal. Mail-in repair typically takes five to seven business days total, including shipping time both ways.

Apple will also replace the battery if you have AppleCare+ coverage. If your plan is active, the replacement is free. If your AppleCare+ has expired, you pay the standard battery replacement fee. Check your coverage status in Settings > General > About, or through your Apple ID on apple.com.

Using an Apple-authorized repair shop

Apple-authorized service providers (ASPs) are independent repair shops that Apple has certified to perform repairs using genuine parts. They follow Apple's repair standards and use the same parts Apple uses in its stores. You can find authorized shops near you by visiting apple.com/repair and entering your location, or by calling Apple Support and asking for a referral.

Authorized shops often charge less than Apple—typically $50 to $80 for a battery replacement—and may have faster turnaround times because they do not have the volume that Apple Stores do. However, quality and customer service vary by shop. Before you go, call ahead to confirm they have your iPhone model in stock and ask how long the repair takes. Some shops can do it same-day; others may need a day or two.

The trade-off is that not every repair shop is authorized, and unauthorized shops may use non-genuine batteries or parts. A non-genuine battery may work, but it often has lower capacity, charges more slowly, and may not report its health accurately to your iPhone. Stick with Apple or an Apple-authorized provider if you want the same quality and warranty protection.

Replacing the battery yourself

DIY battery replacement is possible but requires specific tools and a steady hand. You will need a pentalobe screwdriver (size P2), a heat gun or hair dryer, plastic spudgers, tweezers, and a replacement battery. Batteries for most iPhones cost $20 to $40 from electronics retailers or online marketplaces. The entire process takes two to four hours if you have never done it before.

The main challenge is removing the old battery safely. iPhones made after 2016 have batteries held in with strong adhesive strips underneath. You have to heat the phone to soften the glue, then carefully pry the battery out without puncturing it or damaging the display. If the battery is punctured, it can catch fire. If you slip and crack the display or damage the logic board, the repair cost jumps to $200 or more.

If you decide to try it yourself, follow a detailed video guide specific to your iPhone model. iFixit and YouTube both have step-by-step walkthroughs with close-up photos. Work in a clean, well-lit space and take your time at each step. If you feel uncertain at any point, stop and take your phone to a professional instead. The money you save on labor is not worth the risk of a broken phone.

What to expect during a professional battery replacement

When you take your iPhone to Apple or an authorized shop, the technician will first confirm the battery is the problem by running a diagnostic. They will then power off your phone, remove the display (or back panel on older models), disconnect the battery connector, and remove the old battery. On newer iPhones, they use a heat gun to soften the adhesive before prying the battery out. They then install the new battery, reconnect it, and test it before reassembling the phone.

The entire process takes one to three hours at Apple, depending on how busy the store is. Authorized shops are often faster because they have fewer customers waiting. You will get your phone back fully assembled and tested. Apple and authorized shops both include a 90-day warranty on the battery replacement, so if the new battery fails within that time, they will replace it again at no cost.

When battery replacement is worth the cost

A battery replacement makes sense if your maximum capacity is below 80 percent and your phone is noticeably slower or shuts down unexpectedly. If your phone is still fast and holds a charge all day, the battery is fine and replacement is not necessary. Battery capacity naturally declines over time—this is normal and does not mean the battery is failing.

If your iPhone is more than four years old, consider whether the cost of a new battery is worth keeping the phone. A battery replacement costs $69 to $99, but if your phone also needs a new display, camera, or other repairs, the total cost may approach the price of a used replacement phone. Check the current price of a used iPhone in your model and condition, and compare it to the total repair cost before you decide.

Frequently Asked Questions

How long does an iPhone battery last before it needs replacing?

Apple designs iPhone batteries to retain 80 percent of their capacity after 500 full charge cycles. In real use, this usually means two to three years before the battery noticeably degrades. You can check your current capacity in Settings > Battery > Battery Health & Charging. If you are at 80 percent or above, your battery is still healthy.

Will replacing the battery void my warranty?

No. If Apple or an Apple-authorized shop replaces the battery, your warranty remains valid. If you replace the battery yourself, Apple may refuse to repair other issues if they determine the self-repair caused the problem. The safest approach is to have a professional do it.

Can I replace the battery on an iPhone 15?

Yes, but Apple made it harder. The iPhone 15 has a battery glued in with adhesive, so DIY replacement is risky. Apple and authorized shops can replace it for $69. If you want to do it yourself, you will need a heat gun and a lot of patience, but the risk of damaging the display is high.

What happens if I use a non-genuine battery?

A non-genuine battery may work, but it often has lower capacity, charges more slowly, and may not report its health accurately to your phone. Your iPhone may also show a warning that the battery is not genuine. Stick with Apple or an authorized shop to avoid these issues.

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

A battery replacement costs $69 to $99, so it is almost always cheaper than buying a new phone. A used iPhone in good condition costs $200 to $600 depending on the model. Replace the battery unless your phone also needs multiple other repairs or is very old.