You can replace an iPhone battery yourself, at an Apple Store, or through an authorized repair shop

The route you choose depends on your phone model, how much you want to spend, and whether you have the tools and patience for a DIY job. Apple Stores charge between $69 and $99 depending on your model and whether it is still under warranty. Authorized third-party repair shops often charge less — typically $40 to $80 — but quality varies. Doing it yourself costs $15 to $30 for a battery and a toolkit, but requires removing the screen, which is the hardest part and the easiest place to cause damage.

Your iPhone's battery degrades over time. Once it drops below 80 percent of its original capacity, you will notice the phone shutting down unexpectedly or running out of power faster than it used to. You can check your battery health in Settings > Battery > Battery Health & Charging. If the maximum capacity is below 80 percent, replacement makes sense. If it is above 80 percent, the battery is still within normal range.

Key Takeaways

  • Apple Stores replace batteries for $69 to $99 and typically finish the job the same day or within a few days, depending on how busy they are.
  • Authorized third-party repair shops usually charge $40 to $80 and may offer faster turnaround, but check reviews first because quality is not consistent.
  • DIY replacement costs $15 to $30 but requires removing the screen, which risks cracking the display if you slip or explore uneven pressure.
  • Your battery health percentage is visible in Settings > Battery > Battery Health & Charging; replacement is worth considering once it falls below 80 percent.
  • If your iPhone is still under warranty or covered by AppleCare+, the replacement may be free or heavily discounted.

Replacing a battery at an Apple Store

Walk into any Apple Store with your iPhone and ask for a battery replacement. You do not need an appointment, but calling ahead to check wait times is smart. The Genius Bar will run a diagnostic to confirm the battery is the problem, then quote you a price. For most models, the cost is $69 for iPhone 14 and older, and $99 for iPhone 15 and newer. If your phone is under warranty or you have AppleCare+, the replacement is free or costs $29.

Turnaround depends on how busy the store is. If they have stock and staff available, they may finish the same day. During busy periods — back-to-school season, holidays, after a new iPhone launch — expect to wait a few days or leave your phone overnight. Apple backs the replacement battery with a one-year warranty, so if it fails prematurely, they will replace it again at no cost.

Using an authorized third-party repair shop

Authorized repair shops are certified by Apple and use genuine Apple parts, which means the battery and work carry the same warranty as an Apple Store replacement. You can find them by searching "Apple authorized repair near me" or visiting Apple's official repair provider directory. Prices typically range from $40 to $80, undercutting Apple Stores by $20 to $40.

The trade-off is consistency. Some authorized shops are excellent; others cut corners or use parts that are genuine but refurbished rather than new. Read recent reviews on Google or Yelp before you go, and ask the shop directly whether they use new or refurbished batteries. Turnaround is often faster than Apple Stores — many can finish the same day — but call ahead to confirm they have your model in stock.

Replacing the battery yourself

DIY replacement is cheapest but requires care. You will need a replacement battery (genuine Apple batteries cost $20 to $30 on eBay or Amazon, or third-party batteries cost $10 to $15), a pentalobe screwdriver (the five-pointed screwdriver Apple uses), a plastic spudger or opening tool, tweezers, and ideally a heat gun or hair dryer. iFixit sells complete kits with all tools for $25 to $40.

The hardest step is removing the screen. You heat the edges of the phone to soften the adhesive, then carefully pry the screen away from the body using the spudger. This is where most DIY repairs fail — if you slip or explore uneven pressure, you crack the display. Once the screen is off, you disconnect the battery connector, peel away the adhesive strips holding the battery in place, and slide the new battery in. Reconnecting the screen requires new adhesive strips, which come in most kits. The whole job takes 30 to 60 minutes if you have done it before, or 90 minutes to two hours if you are doing it for the first time.

The risk is real. If you crack the screen, you have now spent $30 on a battery and $200 to $400 on a screen replacement. If you damage the logic board or battery connector, the phone may not power on at all. Third-party batteries also vary in quality — some swell after a few months, and some lose capacity faster than genuine Apple batteries. You have no warranty on DIY work, so if something goes wrong, you are paying to fix it.

What to expect during the replacement process

At an Apple Store or authorized shop, the process is straightforward. You hand over your phone, they run diagnostics, quote you a price, and you either approve or decline. If you approve, they take your phone to the back, replace the battery, test it, and return it to you. The whole visit takes 15 to 30 minutes if they have stock; longer if they need to order the battery.

For DIY work, set aside at least two hours in a clean, well-lit space. Lay out all your tools and the battery before you start. Watch a video tutorial for your specific iPhone model — the steps vary slightly between models, and a video will show you exactly where the adhesive strips are and how much pressure to use when prying the screen. If you get stuck, you can pause and rewatch; rushing is how screens crack.

Warranty and coverage for battery replacement

If your iPhone is still under the one-year manufacturer warranty, battery replacement is free if the battery has degraded below 80 percent capacity due to normal use. If you damaged the battery yourself — by dropping the phone or exposing it to water — the warranty does not cover it, and you pay full price.

AppleCare+ extends coverage to two years and covers accidental damage. Battery replacement under AppleCare+ costs $29 instead of the full price. If your phone is out of warranty and you do not have AppleCare+, you pay the full replacement cost. Third-party repair shops may offer their own warranty on the battery and labor, usually one year, but read the terms before you commit.

When to replace the battery versus the whole phone

If your iPhone is more than five years old and the battery is degraded, consider whether replacement makes financial sense. A battery replacement costs $69 to $99. A used iPhone of the same model costs $100 to $300 depending on condition. A new budget iPhone costs $300 to $500. If your current phone is otherwise working well — no cracked screen, no water damage, no slow processor — battery replacement is worth it. If the screen is cracked, the camera is broken, or the phone is running an old iOS version that no longer receives updates, replacing the whole phone may be smarter.

Check how many iOS versions your phone is behind. If Apple has released three or more new iOS versions since your phone's release, it may stop receiving security updates soon. At that point, using it for sensitive tasks like banking becomes risky, and replacement makes more sense than repair.

Frequently Asked Questions

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

Apple designs iPhone batteries to retain 80 percent of their original capacity after 500 full charge cycles. In real use, that typically means two to three years before you notice significant degradation. Some people go four years without issues; others see problems after 18 months depending on how often they charge and whether they let the battery drain completely.

Can I replace the battery myself if I have never done it before?

Yes, but the risk of cracking the screen is high. If you are comfortable watching a video tutorial and working slowly, you can do it. If you are impatient or working in poor light, take it to a shop. The $40 to $80 you pay is cheaper than replacing a cracked screen.

Will replacing the battery improve my phone's speed?

No. A degraded battery causes the phone to shut down unexpectedly or run out of power fast, but it does not slow down the processor. If your phone is slow, the problem is usually storage being full, too many apps running, or an old iOS version. Battery replacement will fix unexpected shutdowns, not lag.

What is the difference between a genuine Apple battery and a third-party battery?

Genuine Apple batteries are manufactured to Apple's specifications and carry a one-year warranty. Third-party batteries are cheaper but vary in quality — some are reliable, others swell or lose capacity faster. If you buy a third-party battery, choose one with good reviews and a warranty from the seller.

Do I need to back up my phone before the battery is replaced?

No. Battery replacement does not erase data or require a backup. The technician removes the battery and installs a new one; your apps, photos, and settings stay on the phone. If you are doing it yourself, a backup is still not necessary, but it is always good practice to back up before opening your phone.