Three ways to replace your iPhone battery

You can replace your iPhone battery through Apple directly, at an Apple-authorized repair shop, or by doing it yourself with a kit. Apple charges between $69 and $99 depending on your model and whether your phone is under warranty. Authorized shops often charge the same or slightly less. A DIY kit costs $15 to $40 but requires opening your phone, which voids any remaining warranty and risks damage if you slip.

The fastest route is usually an Apple Store appointment — most locations can turn around a battery replacement in one to three hours if you book ahead. Authorized repair shops vary; some finish same-day, others take a few days. DIY replacement takes 30 minutes to two hours depending on your comfort with small electronics and tools.

Your choice depends on cost tolerance, time available, and whether you want a warranty on the work. If your phone is still under AppleCare+, battery replacement is free if the battery health has dropped below 80 percent.

Key Takeaways

  • Apple charges $69 to $99 for battery replacement and usually completes it in one to three hours with an appointment.
  • Authorized repair shops charge similar prices and may be faster than Apple if your local store is busy.
  • DIY kits cost $15 to $40 but void your warranty and require precision work with small screws and adhesive.
  • Check your battery health in Settings > Battery > Battery Health & Charging to confirm the battery is the problem before paying for replacement.
  • AppleCare+ covers battery replacement free if health has dropped below 80 percent.

How to check your battery health before you replace it

Open Settings, tap Battery, then tap Battery Health & Charging. You will see a percentage labeled "Maximum Capacity" — this is how much charge your battery holds 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, replacement is worth considering.

The same screen shows "Condition" at the bottom. If it says "Normal," your battery is fine. If it says "Service Recommended" or "Service Not Available," the battery has degraded enough that Apple or an authorized shop will replace it. "Service Not Available" means the phone cannot read the battery properly and replacement is urgent.

Write down the percentage and condition before you book an appointment — the technician will check it again, but having the number ready speeds up the conversation.

Replacing your battery at an Apple Store

Go to apple.com/repair, select your device, choose "Battery" as the issue, and book a time slot. You can also walk into an Apple Store and ask, but appointments move faster. Bring your phone and a form of ID. If your phone has a passcode, you will need to unlock it for the technician.

Tell the technician if you have AppleCare+ — they will check your coverage before quoting a price. If you do not have AppleCare+ and your phone is out of warranty, you will pay the full replacement fee. Apple will give you a receipt showing the new battery's one-year warranty.

During the replacement, Apple backs up your data to iCloud, removes the old battery, installs a new one, and tests it before handing the phone back. Your apps and settings stay the same. The whole process takes one to three hours depending on how busy the store is.

Using an Apple-authorized repair shop

Authorized shops are independent businesses certified by Apple to use genuine parts and follow Apple's repair standards. Find one near you by going to apple.com/repair, selecting your device, and choosing "Find locations" — the list shows both Apple Stores and authorized shops.

Call ahead and ask the shop's current wait time. Many authorized shops have shorter queues than Apple Stores in busy areas. Prices are usually the same as Apple ($69 to $99), but some shops offer discounts or bundle deals. Ask whether they use genuine Apple batteries or third-party batteries — genuine parts carry Apple's one-year warranty, while third-party batteries may have a shorter or different warranty.

Bring your phone, ID, and passcode. The shop will run the same diagnostics as Apple and give you a receipt with the new battery's warranty details. Turnaround is typically one to three days, though some shops can finish same-day if you drop it off early.

Replacing the battery yourself with a kit

DIY kits include a replacement battery, adhesive strips, a pentalobe screwdriver (to open the back), and a plastic spudger or pry tool. Kits for iPhone 12 and newer cost $25 to $40; older models are cheaper. You can buy them from iFixit, Amazon, or other electronics retailers.

The process is the same for most iPhones: power off the phone, remove the two pentalobe screws at the bottom, heat the back panel with a heat gun or hair dryer to soften the adhesive, pry up the back carefully, disconnect the battery connector, peel off the old battery, stick the new one in place with the adhesive strips, reconnect the battery, and screw the back on. Watch a video for your specific model first — the exact steps vary slightly between iPhone versions.

The biggest risks are cracking the back panel (which costs $100+ to replace), damaging the battery connector (which can brick the phone), or not sealing the phone properly (which lets dust and moisture in). If you slip with the spudger, you can puncture the battery, which is a fire hazard. This is why most people choose Apple or an authorized shop instead.

Once you finish, your phone has no warranty on the battery or the work. If something goes wrong in the next month, you cannot take it to Apple — they will refuse service on phones opened by users.

What to expect after battery replacement

Your phone should charge faster and hold a charge longer. If you had a phone that shut down at 20 percent battery, it should now run normally all the way to zero. The Battery Health & Charging screen will show 100 percent maximum capacity for a new battery.

The new battery will degrade over time like any battery — expect to see it drop to 80 percent after two to three years of normal use. If you replace the battery at Apple or an authorized shop, the new battery has a one-year warranty covering defects. If it fails before one year, you can return for a free replacement.

If you replaced it yourself, keep your receipt from the kit in case you need to return it to the retailer, but Apple will not warranty the work or the battery if you bring the phone back later.

When battery replacement might not be the answer

If your phone is shutting down unexpectedly but the Battery Health screen shows 85 percent or higher, the problem is not the battery — it is usually a software issue or a problem with the charging port. Try restarting the phone, updating to the latest iOS version, and checking whether the charging port has lint or corrosion. If the phone still shuts down, take it to Apple for diagnostics before paying for a battery.

If your phone is slow or apps are crashing, a new battery will not fix that. Those are usually software or storage problems. If your screen is cracked or the phone is physically damaged, repair that first — a technician may refuse to replace the battery until the phone is structurally sound.

If your phone is very old (iPhone 6 or earlier), the cost of battery replacement may be close to the cost of a used replacement phone. Do the math before you commit.

Frequently Asked Questions

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

Most iPhone batteries are designed to retain 80 percent of their capacity after 500 full charge cycles. For typical daily use, that is two to three years. Heavy users who charge multiple times a day may need replacement sooner. Light users may go four years before hitting 80 percent.

Will replacing the battery make my phone feel new again?

A new battery will restore charging speed and runtime, but it will not speed up a slow phone or fix software problems. If your phone is also running an old iOS version or is full of apps, it will still feel sluggish after battery replacement. Update iOS and clear storage space first if you want the full effect.

Can I replace my iPhone battery if it is still under warranty?

If your phone is under the standard one-year warranty and the battery has degraded to below 80 percent, Apple will replace it free. If you have AppleCare+, battery replacement is free as long as the health is below 80 percent. If the battery is still above 80 percent, you pay the full price even under warranty.

What happens to my data when I replace the battery?

Your data stays on the phone. Apple backs up to iCloud during the replacement, but your apps, photos, messages, and settings do not change. If you replace the battery yourself, nothing touches your data at all — it is purely a hardware swap.

Is it safe to use a third-party battery instead of an Apple battery?

Third-party batteries are cheaper but may not hold a charge as long or last as many charge cycles as genuine Apple batteries. Some third-party batteries have caused overheating or swelling. If you use an authorized shop, ask whether they use genuine Apple batteries or third-party ones — the warranty and lifespan differ.