Yes, you can replace an iPhone battery, but the method depends on your phone's age and your comfort level
Apple designs iPhones so the battery can be replaced, though it is not as straightforward as popping off a back cover. Depending on your iPhone model, you have three real options: take it to Apple, visit an authorized repair shop, or do it yourself if you have the right tools and patience. The battery itself costs between $50 and $80 at Apple; a full replacement service through Apple runs $69 to $99 depending on your model and warranty status. Independent repair shops often charge less but vary widely in quality.
Most iPhones have the battery glued to the inside of the phone, which is why opening one requires heat, prying tools, and careful handling of the display. Newer models (iPhone X and later) are slightly easier to access because Apple redesigned the internal layout, but the battery is still adhered in place. Older models like the iPhone 6 and 7 have the battery more accessible, which is why you see more DIY replacements for those phones.
Key Takeaways
- Apple will replace your battery for $69 to $99 and guarantees the work, though you may need an appointment and will be without your phone for a few hours.
- Authorized independent repair shops often charge $40 to $70 and may have faster turnaround, but quality varies by location.
- DIY battery replacement requires a heat gun or hair dryer, plastic prying tools, tweezers, and a replacement battery kit ($20 to $40), plus 30 to 90 minutes of careful work.
- Opening your phone yourself voids any remaining warranty and risks damage to the display, logic board, or other components if you slip.
- Your phone's age and model determine how difficult the job is—iPhone 6 and 7 batteries are easier to access than iPhone 12 or 13 batteries.
Taking your iPhone to Apple for a battery replacement
Apple replaces batteries at its retail stores and through its mail-in service. Walk into an Apple Store, explain that your battery needs replacement, and they will run a diagnostic to confirm the battery is genuinely worn (they check the battery health percentage). If the battery is below 80 percent capacity, Apple considers it worn and will replace it. The cost is $69 for most models, though iPhone 14 Pro and Pro Max cost $99.
You do not need an appointment for a battery replacement at most Apple Stores, but calling ahead is wise because they may not have stock or may have a long queue. The replacement usually takes 2 to 4 hours. If you cannot visit a store, Apple offers mail-in service: you request a prepaid shipping label on Apple's website, send your phone in, and Apple returns it within 5 to 7 business days. Mail-in service costs the same as in-store replacement.
The advantage of going to Apple is the may provide. They use genuine Apple batteries, they handle any damage that occurs during the replacement, and your phone remains under warranty. The disadvantage is cost and time—you are paying more than some independent shops charge, and you lose access to your phone for hours or days.
Using an authorized independent repair shop
Authorized Apple repair shops (often called "Apple Authorized Service Providers") can replace your battery using genuine parts and are held to Apple's standards. These shops are scattered across most cities and suburbs. You can find one by searching "Apple Authorized Service Provider" plus your zip code, or by visiting Apple's official repair locator on their website.
Independent shops typically charge $40 to $70 for a battery replacement, undercutting Apple's price. Turnaround is often faster—many will replace a battery the same day if you drop it off in the morning. The trade-off is that quality and reliability vary by shop. Some are excellent; others cut corners or use refurbished batteries instead of new ones. Read recent reviews on Google or Yelp before you go, and ask the shop directly whether they use new or refurbished batteries.
Authorized shops still use genuine parts and their work is usually warrantied, so you have some recourse if something goes wrong. However, the warranty is only as good as the shop's reputation and willingness to stand behind it.
Replacing the battery yourself
If you decide to replace the battery yourself, you will need the right tools and a replacement battery kit. A basic kit costs $20 to $40 and includes a replacement battery, a heat gun or adhesive strips, plastic prying tools, tweezers, and sometimes a small screwdriver. You can buy these kits on Amazon or from electronics retailers. The battery itself is the same part Apple uses, though third-party kits sometimes include lower-quality adhesive or tools.
The process is roughly the same for all iPhones: heat the edges of the phone to soften the adhesive, carefully pry up the display, disconnect the battery connector, remove the adhesive strips holding the battery, lift out the old battery, install the new one, reconnect the battery, and reassemble the phone. For an iPhone 6 or 7, this takes 30 to 45 minutes if you work slowly. For an iPhone 12 or 13, it takes 60 to 90 minutes because the internal layout is more complex.
The risks are real. If you slip with a prying tool, you can crack the display, damage the logic board, or tear a ribbon cable that controls the camera or speaker. If you overheat the phone, you can damage the battery itself or the adhesive holding other components. If you reassemble it wrong, water resistance is compromised. Once you open the phone, any remaining warranty is void.
What to know about battery health and when replacement makes sense
Your iPhone displays battery health in Settings > Battery > Battery Health & Charging. This percentage tells you how much charge your battery can hold compared to when it was new. A battery at 80 percent health is considered worn; at 50 percent, the phone may shut down unexpectedly under load. If your battery is above 85 percent, replacement is not urgent. If it is below 80 percent and your phone is more than two years old, replacement will noticeably improve performance and daily usability.
Battery degradation is normal. Lithium batteries lose capacity every time they charge, and after 500 to 1,000 full charge cycles, most iPhone batteries are at 80 percent health. If you charge your phone every day, you hit this point in about two years. If you charge every other day, it takes longer.
Replacing the battery is almost always cheaper than replacing the phone, even if you pay Apple's full price. A $99 battery replacement extends the life of a $600 to $1,200 phone by 2 to 3 years. The only time replacement does not make sense is if your phone is already broken in other ways—a cracked screen, a failing speaker, or a logic board problem—because you are spending money on a phone you will replace soon anyway.
Comparing the three routes side by side
| Route | Cost | Time | Risk | Warranty |
|---|---|---|---|---|
| Apple Store or mail-in | $69–$99 | 2–4 hours (in-store) or 5–7 days (mail-in) | None—Apple handles damage | Full Apple warranty |
| Authorized independent shop | $40–$70 | Same day or next day | Low—shop is trained and certified | Shop warranty (varies) |
| DIY with kit | $20–$40 | 30–90 minutes | High—you can damage display, logic board, or ribbon cables | None—voids warranty |
Frequently Asked Questions
Will replacing the battery fix my iPhone if it keeps shutting down?
Maybe. If your battery health is below 50 percent, a new battery will almost certainly stop the shutdowns. If your battery health is above 80 percent, the shutdowns are caused by something else—a failing logic board, a software bug, or a hardware problem—and a new battery will not help. Check your battery health first before you spend money on a replacement.
Can I replace the battery myself if I have never opened a phone before?
You can try, but the risk is high. If you are comfortable following detailed video instructions and working slowly with small tools, you might succeed. If you rush or get frustrated, you will likely crack the display or damage a ribbon cable. Watch a full video for your specific iPhone model before you decide—if it looks too fiddly, go to a shop instead.
How long does a new battery last?
A new battery will reach 80 percent health in about two years if you charge your phone daily. This is normal degradation, not a defect. You will not need another replacement for at least two years, and probably longer if you charge less frequently or use battery-saving features.
Is it cheaper to buy a used iPhone than to replace the battery?
No, unless your phone is very old or already broken in other ways. A used iPhone 11 costs $200 to $300; a battery replacement costs $69 to $99. Even if you buy a used phone, its battery is also degraded, so you are not saving money in the long run.
What should I do with my old battery after replacement?
Do not throw it in the trash. Lithium batteries are hazardous waste and can catch fire in landfills. Apple will recycle your old battery for free if you replace it at an Apple Store. If you replace it yourself, take the old battery to an electronics recycler or a Best Buy, which accepts batteries at the customer service desk.