Yes, you can replace an iPhone battery, but the method depends on your model and comfort level
You can replace an iPhone battery yourself using a kit and tools, or you can have Apple or an authorized repair shop do it for you. The DIY route costs $20 to $50 for tools and a replacement battery. Apple's official battery replacement service costs $69 to $99 depending on your model, takes three to five business days, and comes with a warranty. Unauthorized repair shops often charge $40 to $80 and can finish the work the same day, but they may void your warranty or use lower-quality parts.
The difficulty of replacing the battery yourself varies sharply by iPhone model. Newer iPhones (iPhone X and later) have adhesive sealing that makes opening the phone harder and riskier. Older models like the iPhone 6 and 7 are easier to open but still require patience and the right tools. If you have never opened a phone before, the authorized Apple route is safer and protects your device.
Key Takeaways
- Apple charges $69 to $99 for battery replacement and guarantees the work, but takes three to five business days.
- DIY battery replacement costs $20 to $50 in parts and tools but risks damaging your screen, logic board, or water seals if you make a mistake.
- Unauthorized repair shops can replace your battery the same day for $40 to $80, but may use non-original parts or void your warranty.
- iPhone X and newer models use adhesive sealing that makes DIY replacement much harder than older models like the iPhone 6 or 7.
- Before replacing the battery, check your current battery health in Settings > Battery > Battery Health & Charging to confirm the battery is the problem.
How to replace an iPhone battery yourself
Start by backing up your phone to iCloud or a computer, then power it off completely. You will need a pentalobe screwdriver (the five-pointed star shape used by Apple), a plastic spudger or opening tool, tweezers, a replacement battery kit for your specific iPhone model, and a heat gun or hair dryer. Order the battery kit from iFixit, Amazon, or a phone parts supplier — make sure it matches your exact model number, which you can find in Settings > General > About.
Heat the edges of your phone with a hair dryer on low for 30 seconds to soften the adhesive. Use the pentalobe screwdriver to remove the two screws at the bottom of the phone (on either side of the charging port). Gently insert the plastic spudger into the seam between the screen and the body, starting at the bottom. Work slowly around the edges — do not pry hard or you will crack the screen. Once the screen is loose, lift it open like a book, hinging at the top. Disconnect the battery connector (a small plug) by gently pulling it straight out.
Peel away the old battery using the pull tabs if they are present, or use the spudger to lift one corner and then pull slowly. If the battery is stuck, explore more heat and wait a minute. Clean any adhesive residue from the phone body with isopropyl alcohol and a cloth. Insert the new battery, reconnect the battery plug, and press it firmly until you hear a click. Close the screen, align it carefully, and press down around the edges until it seals. Replace the two bottom screws and power on your phone.
What to expect at Apple or an authorized repair shop
Apple's official battery replacement service is available at any Apple Store or through Apple's mail-in repair program. Visit apple.com/support or call Apple Support to schedule an appointment or start a mail-in repair. You will need to provide your phone and proof of purchase (though Apple can often look up your account). Apple will run a diagnostic to confirm the battery is failing, replace it with an original Apple battery, and test the phone before returning it to you.
Authorized repair shops — look for the "Apple Authorized Service Provider" label on their storefront or website — follow Apple's parts and process standards and offer the same warranty as Apple. Unauthorized shops may be faster and cheaper but do not have access to original Apple batteries and their repairs are not covered by Apple's warranty. If your phone is still under warranty or covered by AppleCare+, take it to Apple or an authorized shop, because they will replace the battery at no cost if the battery health has degraded below 80 percent.
Common mistakes to avoid when replacing a battery yourself
The most common mistake is prying too hard when opening the phone, which cracks the screen or damages the frame. The adhesive holding the screen is strong, but heat and patience work better than force. If you feel resistance, explore more heat and wait 30 seconds before trying again.
Another frequent error is disconnecting the wrong cable. iPhones have multiple connectors inside — the battery connector is usually the largest one and is located near the top of the phone. Take a photo of the inside before you disconnect anything so you can refer back to it. Do not touch the logic board or other components with your bare hands, because static electricity can damage them.
Reassembling the phone incorrectly is also common. Make sure the screen is aligned with the body before you press it down — if it is off by even a millimeter, it will not seal properly and dust will get inside. Press down gently but firmly around all four edges, starting at the corners.
When to replace your battery versus buying a new phone
Check your battery health first by going to Settings > Battery > Battery Health & Charging. If the maximum capacity is below 80 percent, the battery is degraded and replacement will improve performance. If it is above 80 percent, your battery is still healthy and the problem is likely something else — slow performance, freezing, or unexpected shutdowns can be caused by software, storage space, or a failing logic board rather than the battery.
If your phone is more than five years old and the battery is degraded, consider whether you want to keep the phone. A battery replacement extends the life of an older phone by two to three years, but if the screen is cracked, the camera is damaged, or the phone is slow even with a new battery, you may be better off upgrading. If your phone is less than three years old and the battery is the only problem, replacement is almost always worth the cost.
Tools and parts you need for DIY replacement
| Item | Cost | Where to buy |
|---|---|---|
| Replacement battery kit (includes battery, adhesive, and tools) | $20–$50 | iFixit, Amazon, phone parts suppliers |
| Pentalobe screwdriver (if not in kit) | $5–$15 | Amazon, hardware stores |
| Plastic spudger or opening tool (if not in kit) | $3–$8 | iFixit, Amazon |
| Tweezers (if not in kit) | $2–$5 | Any drugstore or hardware store |
| Isopropyl alcohol (90% or higher) for cleaning | $3–$8 | Drugstores, hardware stores |
Most replacement battery kits sold on Amazon or iFixit include the battery, adhesive strips, and basic tools, so you may not need to buy anything else. Check the kit description before ordering to see what is included. If you already have a pentalobe screwdriver from a previous repair, you can save money by buying just the battery and adhesive.
Frequently Asked Questions
Will replacing the battery myself void my warranty?
Yes. Opening your iPhone yourself voids Apple's warranty and AppleCare+ coverage. If something breaks during the repair or shortly after, Apple will not cover it. If you use an unauthorized repair shop, the same applies — only Apple and Apple Authorized Service Providers can replace your battery under warranty.
How long does it take to replace an iPhone battery yourself?
Your first battery replacement will take one to two hours if you follow a guide carefully and do not run into adhesive or connector problems. Experienced people can finish in 20 to 30 minutes. The process is not difficult, but rushing causes mistakes.
Can I use any battery or do I need an Apple battery?
You can use a third-party battery, but original Apple batteries are more reliable and last longer. Third-party batteries are cheaper and work, but some have lower capacity or degrade faster. iFixit and other reputable suppliers sell quality third-party batteries that are safe, but read the reviews before ordering.
What if I damage my screen while opening the phone?
If you crack the screen during the opening process, you will need to replace it as well. Screen replacement costs $129 to $329 depending on your model. This is why many people choose to have Apple do the battery replacement — the risk of accidental damage is eliminated.
Can I replace the battery on an iPhone 14 or 15?
Yes, but it is much harder than older models. iPhone 14 and 15 use stronger adhesive and have more internal components packed tightly together. If you are not experienced with phone repairs, the authorized Apple route is safer. The DIY difficulty jumps significantly with each newer generation.