You can replace an iPhone battery, but Apple and most phone owners use authorized repair instead
Yes, you can physically remove and install a new battery in an iPhone. The battery is not soldered to the logic board the way some internal components are. However, the process requires opening the phone, disconnecting cables, and removing adhesive strips—and doing it wrong can damage the display, water seals, or the battery itself. Most people choose to have Apple or an authorized repair shop do it instead, which costs between $50 and $100 depending on your model and whether you're under warranty.
The real question is not whether it's possible, but whether it makes sense for your situation. If your iPhone is still under warranty or covered by AppleCare+, the repair is cheaper or free. If your phone is out of warranty and the battery health has dropped below 80 percent, you have three realistic paths: take it to Apple, use an authorized third-party repair shop, or do it yourself with a kit.
Key Takeaways
- Apple will replace your battery for $69 to $99 depending on your iPhone model, and the repair usually takes a few days at a store or through mail-in service.
- Authorized third-party repair shops often charge less than Apple and may complete the work the same day, but verify they use genuine or certified batteries.
- DIY battery replacement requires a kit (typically $20 to $40), a heat gun or hair dryer, precision screwdrivers, and an hour of careful work, with real risk of damaging the display or water seals.
- Your iPhone's battery health percentage is visible in Settings > Battery > Battery Health & Charging, and Apple recommends replacement when it drops below 80 percent.
- Replacing the battery yourself voids any remaining warranty and may affect water resistance if the seals are not reinstalled correctly.
How to check if your battery needs replacement
Open Settings, tap Battery, then Battery Health & Charging. You will see a percentage labeled Maximum Capacity. This tells you how much charge your battery can hold compared to when it was new. If it shows 80 percent or higher, your battery is still within normal range. If it shows below 80 percent, the battery is degraded and Apple considers it may be able to access for replacement.
You will also see Condition listed as "Normal" or "Service Recommended." If it says "Service Recommended," Apple is telling you the battery should be replaced. This does not mean your phone will stop working—it means the battery will not hold a charge as long as it should, and you may notice the phone shutting down unexpectedly when the battery percentage is still above zero.
Taking your iPhone to Apple for battery replacement
Visit apple.com/support or open the Apple Support app on your iPhone and select Battery and Charging. Choose Battery Replacement and follow the prompts to book a Genius Bar appointment at your nearest Apple Store, or arrange mail-in repair if no store is nearby. You will need your phone and a valid ID.
The cost is $69 for iPhone 15, $79 for iPhone 14 and earlier models, and $99 for iPhone 11 Pro, 12 Pro, 13 Pro, and 14 Pro. If your phone is under warranty or covered by AppleCare+, the repair is free. The repair usually takes three to five business days if you drop it off, or five to seven days if you mail it in. Apple uses genuine batteries and reinstalls the water seals, so your phone's water resistance is preserved.
Using an authorized third-party repair shop
Authorized repair shops are certified by Apple and use genuine or Apple-certified batteries. You can find them through apple.com/repair by entering your zip code and selecting Find Locations. Common chains include Best Buy (Geek Squad), Walmart, and regional phone repair shops. Many of these locations can complete battery replacement the same day or within 24 hours.
Prices typically range from $40 to $80, lower than Apple's official rate. Ask the shop whether they use genuine Apple batteries or certified third-party batteries, and whether they test water seals after reassembly. A reputable shop will offer a warranty on the battery (usually 90 days to one year) and will not charge extra for water seal testing.
Doing the replacement yourself with a kit
Battery replacement kits are sold on Amazon, iFixit, and other retailers for $20 to $40. A typical kit includes a replacement battery, adhesive strips, a pentalobe screwdriver (to open the phone), a spudger (a plastic prying tool), and sometimes a heat gun or suction cup. You will also need a hair dryer or heat gun to soften the adhesive holding the battery in place.
The basic steps are: heat the edges of the phone to soften the adhesive, carefully pry open the display, disconnect the battery cable, remove the old battery, install the new one, reconnect the cable, and seal the phone back together with new adhesive strips. The process takes 45 minutes to two hours if you work slowly and carefully. iFixit publishes detailed photo guides for each iPhone model at ifixit.com, with step-by-step instructions and warnings about common mistakes.
The main risks are cracking the display (which costs $200 to $400 to replace), damaging the battery connector cable, or not sealing the phone properly, which can let water in and damage internal components. If you have never opened a phone before, the learning curve is steep. If you have done it before or are comfortable with precision work, the savings may be worth the risk.
What happens if you damage something during DIY replacement
If you crack the display while opening the phone, you will need a separate display replacement, which costs more than the battery replacement itself. If you damage the battery connector or the battery itself during removal, the phone will not power on and you will need professional repair to fix it. If you do not seal the phone correctly or use low-quality adhesive, water can seep in over time and cause corrosion on the logic board.
Any DIY repair also voids your remaining warranty. If something goes wrong after you reassemble the phone, Apple will not cover it under warranty, and you will have to pay for professional repair out of pocket. For this reason, DIY replacement makes the most sense if your phone is already out of warranty and you are comfortable with the risk.
Comparing your three options
| Option | Cost | Time | Risk | Warranty |
|---|---|---|---|---|
| Apple Store or mail-in | $69–$99 (free with AppleCare+) | 3–7 days | None | One year on battery |
| Authorized third-party shop | $40–$80 | Same day to 24 hours | Low (if certified) | 90 days to one year |
| DIY with kit | $20–$40 | 1–2 hours | High (display, seals, connector) | None; voids warranty |
Frequently Asked Questions
Will replacing the battery make my iPhone feel new again?
A new battery will restore the phone's ability to hold a charge for a full day of normal use, but it will not speed up the processor or improve performance. If your phone feels slow, the issue is usually software or storage space, not the battery. Replacing the battery is worth doing if you like your phone otherwise and want to keep using it for another year or two.
Can I use a non-Apple battery from Amazon or eBay?
Non-Apple batteries vary widely in quality. Some are genuine Apple batteries removed from other phones and resold. Others are third-party batteries that may not hold a charge as long or may fail sooner. If you use a non-Apple battery in a DIY kit, you lose the ability to see accurate battery health information in Settings, and the battery may not be covered by any warranty. Authorized repair shops use certified batteries that are tested and warrantied.
Does Apple replace batteries for free if the phone is still under warranty?
If your iPhone is within one year of purchase and the battery health has dropped below 80 percent due to a manufacturing defect (not normal wear), Apple will replace it free. If the degradation is due to normal use, you pay the standard fee. AppleCare+ covers battery replacement at no cost regardless of the cause, as long as the coverage is active.
What is the difference between a genuine Apple battery and a certified third-party battery?
Genuine Apple batteries are made by Apple's suppliers and meet Apple's specifications exactly. Certified third-party batteries are made by other manufacturers but have been tested and approved by Apple to meet the same standards. Both should perform similarly and last the same length of time. Certified batteries are usually cheaper and are what authorized repair shops use when they do not have genuine batteries in stock.
If I replace the battery myself, will my phone still be water resistant?
Water resistance depends on the seals around the edges of the phone and around internal components. If you do not reinstall the adhesive strips correctly or use low-quality adhesive, the seals will not be as tight and water can seep in. Professional repair shops test the seals after reassembly to make sure they are find. If you do it yourself, you are responsible for getting it right, and there is no way to test it without actually exposing the phone to water.