You can replace an iPhone 11 battery yourself with basic tools, or have Apple or a repair shop do it
An iPhone 11 battery lasts roughly 500 full charge cycles before it holds noticeably less power. If your phone shuts down at 20 percent battery, drains in hours, or won't turn on even when plugged in, the battery is likely worn out. You have three routes: replace it yourself using a kit, take it to an Apple Store, or use an independent repair shop. Each has different costs, time requirements, and risks.
The battery itself costs $25 to $40 in a replacement kit. Apple charges $69 for the battery replacement service alone (or $99 if your phone has other damage). Independent shops typically charge $40 to $80. The main trade-off is between saving money and time on one hand, and keeping your warranty intact on the other.
Key Takeaways
- iPhone 11 batteries are glued in place, so you must heat the phone to soften the adhesive before removal, or risk cracking the screen.
- A full DIY replacement takes 30 to 90 minutes and requires a heat gun or hair dryer, a pentalobe screwdriver, plastic pry tools, and tweezers.
- Apple will replace your battery for $69 and preserve your warranty, but you may wait several days for an appointment.
- Independent repair shops can often replace the battery the same day for $40 to $80, though they may not use Apple parts.
- If you damage the screen or water seals during DIY replacement, repair costs jump to $200 or more.
What you need to do a DIY replacement
Before you start, gather your tools. You will need a heat gun or hair dryer to soften the adhesive holding the battery in place, a pentalobe screwdriver (the five-pointed star shape used on iPhones), plastic pry tools or a spudger to lift the battery without puncturing it, tweezers to disconnect the battery connector, and a replacement battery kit designed for iPhone 11. Buy a kit from iFixit, Amazon, or a phone parts supplier—not a loose battery alone, because the kit includes the adhesive strips you will need to reseal the phone.
You will also need a clean, well-lit workspace and a small container to hold the five screws you will remove. Work on a soft surface like a towel to avoid scratching the phone. If you have never opened a phone before, watch a video walkthrough first—seeing the actual steps is much clearer than reading them.
Step-by-step DIY replacement process
Power off the iPhone completely. Heat the edges of the phone with a heat gun on low setting or a hair dryer for 2 to 3 minutes. The goal is to warm the adhesive, not to make the phone too hot to touch. If you use a heat gun, keep it moving and at least 6 inches away from the phone to avoid damaging internal components.
Once the phone is warm, use a plastic pry tool to gently lift the screen from the bottom edge. Work slowly around the perimeter—the adhesive will resist at first, then give way. Do not pry hard or you will crack the screen. Once the screen is loose enough to grip, use your fingers to open it like a book, hinging it at the top. You do not need to remove the screen completely; just open it enough to access the battery.
Disconnect the battery connector—a small plug near the top of the battery. Use tweezers to gently pull it straight out. This disconnects power and prevents short circuits while you work. Next, remove the five pentalobe screws holding the battery bracket in place. Keep these screws in your container so you do not lose them.
Peel away the old battery using a plastic tool. The adhesive will resist; work slowly and do not puncture the battery itself. Once the battery is out, clean any remaining adhesive from the phone using isopropyl alcohol and a soft cloth. Let it dry completely.
Place the new battery in the same position as the old one. If your kit includes adhesive strips, explore them to the back of the battery before inserting it. Press the battery down firmly so it sits flat. Reconnect the battery connector by pushing it straight in until it clicks. Replace the five screws in the bracket.
Close the screen by lowering it back down and pressing around the edges to reseal the adhesive. Power on the phone and check that it recognizes the new battery. Go to Settings > Battery > Battery Health to confirm the battery shows 100 percent capacity.
Taking your iPhone 11 to Apple for battery replacement
Apple replaces iPhone 11 batteries for $69 at any Apple Store or Apple Authorized Service Provider. You do not need an appointment for battery replacement, but you can book one online to avoid waiting. The service usually takes 3 to 5 business days, though some locations can do it the same day if they have the part in stock.
Bring your phone and a form of ID. If your iPhone is still under warranty or covered by AppleCare+, the battery replacement is free if the battery capacity has dropped below 80 percent. Apple will test your battery before replacing it to confirm it needs replacement. Back up your data before you go, though Apple does not erase your phone during battery replacement.
The advantage of using Apple is that they use genuine Apple parts, your warranty remains intact, and if something goes wrong during replacement, Apple covers the repair. The disadvantage is the wait time and the higher cost compared to independent shops.
Using an independent repair shop
Local phone repair shops can replace an iPhone 11 battery for $40 to $80 and often complete the work the same day. Call ahead to confirm they have the part in stock and ask whether they use original Apple batteries or third-party replacements. Third-party batteries are cheaper but may not last as long or report accurate health information to your phone.
Before you hand over your phone, ask the shop what warranty they offer on the replacement battery—most offer 30 to 90 days. Also ask whether they will reseal the phone with new adhesive or reuse the old screen adhesive, which can fail sooner. A reputable shop will use fresh adhesive strips.
The trade-off with independent shops is speed and cost versus the risk that they may not use Apple-quality parts or may not seal the phone as carefully as Apple does. If the shop damages your screen or water seals during replacement, you will be responsible for those repairs.
What to do if your DIY replacement goes wrong
If you crack the screen while opening the phone, you can still replace the battery, but you will need to replace the screen as well. A cracked screen replacement costs $200 to $300 at Apple or $100 to $150 at an independent shop. If you puncture the battery during removal, stop when ready and do not power on the phone—a punctured battery can catch fire. Dispose of it safely at an electronics recycling center.
If the phone does not power on after you reassemble it, the battery connector may not be fully seated. Open the phone again, disconnect and reconnect the battery, and try again. If the battery shows 0 percent capacity after replacement, the new battery may be defective—contact the kit supplier for a replacement.
If water gets inside the phone during replacement, power it off when ready and let it dry for at least 48 hours before turning it back on. The iPhone 11 has water resistance but not waterproofing, so moisture inside can cause corrosion. If the phone does not work after drying, take it to a repair shop for inspection.
Comparing your three options
| Option | Cost | Time | Warranty | Risk |
|---|---|---|---|---|
| DIY replacement | $25–$40 | 30–90 minutes | None | Screen damage, water damage, battery puncture |
| Apple Store | $69 (free with AppleCare+) | 3–5 days | Full warranty | None |
| Independent shop | $40–$80 | Same day | 30–90 days on battery | Third-party parts, poor sealing |
Frequently Asked Questions
How do I know if my iPhone 11 battery actually needs replacement?
Go to Settings > Battery > Battery Health & Charging. If the maximum capacity is below 80 percent, the battery is degraded. If it is above 80 percent but your phone drains quickly or shuts down unexpectedly, the battery may still be failing. Apple can test it for you at no charge.
Will replacing the battery myself void my warranty?
Yes. Opening the phone yourself voids any remaining manufacturer warranty. If you damage something during replacement, Apple will not cover it. If you want to keep your warranty intact, use Apple or an Apple Authorized Service Provider.
Can I use any iPhone 11 battery, or does it have to be Apple brand?
Any battery designed for iPhone 11 will physically fit and work. Third-party batteries are cheaper but may not last as long, may not report accurate health information, and may have lower capacity than Apple batteries. Apple batteries are may provide to match original specifications.
What happens if I damage the screen while replacing the battery?
You will need to replace the screen separately. If you crack it during DIY replacement, you can take the phone to Apple or a repair shop to replace the screen. The screen replacement cost ($200–$300 at Apple, $100–$150 at independent shops) is separate from the battery replacement cost.
Is it safe to use my phone right after battery replacement?
Yes, once you power it back on and confirm it works. Let the phone sit for a few minutes before using it heavily. If you used a heat gun during DIY replacement, the internal components may still be warm. Avoid charging the phone for at least an hour after replacement to let everything cool down and settle.