Yes, you can replace an iPhone battery yourself or have Apple do it

You can replace an iPhone battery in two ways: take it to Apple or an authorized repair shop, or do it yourself if you have the right tools and feel comfortable opening your phone. Apple's route is simpler and keeps your warranty intact, but costs between $69 and $99 depending on your model and whether it is still under coverage. The DIY route is cheaper—parts run $20 to $40—but voids your warranty and risks damaging the screen, logic board, or other components if something goes wrong.

Most people should choose the Apple or authorized repair path. It takes three to five business days, your battery comes with a one-year warranty, and you do not have to worry about reassembling the phone correctly. The DIY option makes sense only if you have done phone repairs before, have steady hands, and own a heat gun or hair dryer plus a pentalobe screwdriver and plastic pry tools.

Key Takeaways

  • Apple and authorized repair shops replace iPhone batteries for $69 to $99 and include a one-year warranty on the new battery.
  • DIY battery replacement costs $20 to $40 for the part but requires a heat gun, pentalobe screwdriver, plastic pry tools, and steady hands to avoid damaging the screen or internal components.
  • Apple's repair process takes three to five business days and does not void your warranty, while DIY replacement voids any remaining coverage.
  • You can check your battery health in Settings > Battery > Battery Health & Charging to see if replacement is necessary before spending money.

When your iPhone battery actually needs replacing

Before you spend money on a new battery, check whether your current one is truly worn out. Open Settings, tap Battery, then Battery Health & Charging. Look at the Maximum Capacity number—if it is 80 percent or higher, your battery is still healthy. If it drops below 80 percent, the battery is degraded but may still work fine for daily use. If it is below 50 percent, you will notice the phone shutting down unexpectedly or draining fast even with light use.

You should also check Condition under Battery Health. If it says "Service Recommended" or "Service Battery," Apple is telling you the battery has degraded enough that replacement will noticeably improve performance. If it says "Normal," you can wait longer. Keep in mind that this reading is Apple's assessment—your own experience matters too. If your phone dies at 20 percent battery or shuts down during normal use, replacement is worth doing regardless of what the settings screen says.

Taking your iPhone to Apple or an authorized repair shop

This is the safest and most common route. Visit apple.com/repair, enter your phone model, and choose Battery Replacement. You can schedule an appointment at an Apple Store or mail your phone to Apple's repair center. If you mail it, Apple sends you a prepaid shipping label, you pack the phone, and it arrives back in three to five business days. In-store appointments are usually faster—often same-day or next-day—but availability depends on your location.

Bring your phone, a valid ID, and your proof of purchase if the phone is still under warranty. The cost is $69 for iPhone 15 and newer, $79 for iPhone 11 through 14, and $99 for older models. If your phone is covered by AppleCare+, battery replacement is free. The new battery comes with a one-year warranty, and your phone's overall warranty is not affected by the repair.

Authorized repair shops—like Best Buy's Geek Squad or independent certified shops—charge the same price as Apple and follow the same process. Find them by searching "[your city] authorized iPhone repair" or checking Apple's official repair provider list on apple.com.

Replacing the battery yourself: tools and preparation

If you decide to do this yourself, gather the right tools first. You need a pentalobe screwdriver (the five-pointed star shape used on iPhones), a plastic pry tool or spudger, a heat gun or hair dryer, tweezers, and a replacement battery compatible with your exact iPhone model. Buy a kit from iFixit or Amazon that includes most of these items—kits run $25 to $40 and come with the battery and tools together.

Before you start, back up your phone to iCloud or a computer. Power it off completely. Clear a clean, well-lit workspace and lay out all your tools so you do not lose small screws. Take a photo of each step with another device so you can reference it while reassembling. Watch a full video guide for your specific iPhone model on iFixit or YouTube—do not rely on written instructions alone, because the order of steps and screw locations vary between models.

The step-by-step DIY replacement process

Start by heating the edges of the phone with a heat gun on low setting or a hair dryer for 30 to 60 seconds. This softens the adhesive holding the screen in place. Use your plastic pry tool to gently lift one corner of the screen—start at the bottom, not the top, because the top has more cables. Work slowly around the edges; rushing here is the most common way to crack the screen.

Once the screen is open, you will see cables connecting it to the logic board. Disconnect these carefully by lifting the small metal clips holding them in place. Set the screen aside on a soft surface. Now you can see the battery, which is glued down. Heat it gently, then use your pry tool to lift one corner and pull the adhesive strips underneath. The battery should come free without much force—if it does not, heat it more and wait a few seconds.

Disconnect the battery connector from the logic board by gently pulling the small plug straight out. Remove the old battery completely. Insert the new battery, reconnect the battery connector, and press it firmly until you hear a small click. Reconnect the screen cables in reverse order, then carefully lower the screen back down and press the edges to reseal the adhesive. Power on the phone and check that the battery percentage shows correctly in Settings.

Common mistakes that damage your phone

The most frequent error is prying too hard on the screen and cracking it—this turns a $30 battery job into a $300 screen replacement. Heat the phone enough before prying, and use a plastic tool, never metal. Another common mistake is disconnecting the battery connector while the phone is powered on, which can damage the logic board. Always power off completely and wait 30 seconds before touching any internal components.

Many people also reassemble the phone in the wrong order or forget to reconnect a cable. This is why watching a video for your exact model is essential—the cable locations and order differ between iPhone 12, 13, 14, and 15, for example. If you reassemble and the phone does not power on, or the screen does not respond, you likely missed a cable connection. Opening it again to check is frustrating but better than assuming the phone is broken.

What to do if something goes wrong during DIY replacement

If you crack the screen while opening the phone, you can still complete the battery replacement—just be careful not to cut your fingers on the broken glass. Once the battery is in, take the phone to Apple or a repair shop to have the screen replaced. If you damage the battery connector or a cable, the repair becomes much more expensive and may require professional soldering, so stop when ready and take the phone to a shop.

If the phone does not power on after reassembly, do not panic. Open it again and check that every cable is fully connected and seated properly. The battery connector in particular needs to be pushed in firmly until it clicks. If you still cannot get it to power on, take it to an authorized repair shop and explain what you did—they can usually fix reconnection issues quickly and cheaply.

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, which is roughly two to three years of normal use. After that, degradation accelerates. You will notice the phone draining faster or shutting down unexpectedly around year three or four, depending on how often you charge it.

Is it cheaper to replace the battery or buy a new phone?

Battery replacement at $69 to $99 is much cheaper than a new iPhone, which starts at $800. Unless your phone is very old and has other hardware problems, battery replacement extends its life by two to three more years. A new battery is worth doing if your phone is less than five years old.

Will replacing the battery myself void my warranty?

Yes. Opening your iPhone voids any remaining manufacturer warranty. If something else breaks during or after your repair, Apple will not cover it. This is the main reason most people choose to have Apple do it—the warranty protection is worth the extra cost.

Can I use a third-party battery instead of an Apple battery?

Yes, but third-party batteries vary widely in quality. Some work well for months, others degrade quickly or do not hold a full charge. Apple's battery comes with a one-year warranty and is may provide to match your phone's specifications. If you do DIY replacement, buy from a reputable seller like iFixit rather than an unknown marketplace seller.

What if my phone is still under warranty—is battery replacement free?

Battery replacement is free under the standard one-year warranty only if the battery has a manufacturing defect, not normal wear. If your battery is straightforward degraded from use, you pay the standard fee. If you have AppleCare+, battery replacement is free regardless of wear.