Yes, you can replace an iPhone battery, but where you do it matters
You can replace an iPhone battery yourself using a kit from a third-party seller, or you can have Apple or an authorized repair shop do it for you. The DIY route costs $20 to $50 for a battery kit and takes 30 minutes to two hours if you follow the steps carefully. Apple's official battery replacement costs between $69 and $99 depending on your model, takes three to five business days, and comes with a warranty. An authorized third-party repair shop usually falls in the middle—$50 to $80 and one to three days.
The catch with DIY replacement is that opening your iPhone yourself voids any remaining warranty, and if you damage the screen, logic board, or water seals during the process, you will pay to fix those separately. Apple's official service preserves your warranty and guarantees the battery will hold a full charge for one year. If you choose a third-party shop, check whether they use genuine Apple batteries or aftermarket ones—genuine batteries last longer and charge more reliably.
Key Takeaways
- Apple's official battery replacement costs $69 to $99, takes three to five business days, and includes a one-year warranty on the new battery.
- DIY battery kits cost $20 to $50 and take 30 minutes to two hours, but opening your phone voids your warranty and risks damage to other components.
- Authorized third-party repair shops charge $50 to $80 and usually complete the work in one to three days, but confirm they use genuine Apple batteries.
- Your iPhone's battery degrades over time; if your phone shuts down at 20 percent charge or takes longer to charge, the battery likely needs replacement.
- Before you replace the battery, back up your data and disable Find My iPhone in Settings, because some replacement methods require erasing the device.
How to tell if your iPhone battery needs replacement
Your iPhone battery degrades with every charge cycle. After 500 full charge cycles (roughly two years of normal use), the battery typically holds 80 percent of its original capacity. You will notice this as slower charging, shorter battery life, or unexpected shutdowns—your phone dies at 20 or 30 percent charge even though the battery percentage shows higher.
Check your battery health in Settings. Go to Settings > Battery > Battery Health & Charging. The "Maximum Capacity" number tells you what percentage of the original charge your battery can now hold. If it is below 80 percent and your phone is shutting down unexpectedly or not lasting through the day, replacement will restore normal performance. If the maximum capacity is above 80 percent but you still have problems, the issue may be software, not the battery itself.
Getting your battery replaced at Apple
Visit apple.com/repair or call Apple Support to schedule a Genius Bar appointment at an Apple Store near you. You can also mail your iPhone to Apple's repair center if no store is convenient. During the appointment, a technician will confirm the battery needs replacement, complete the work while you wait (usually 30 minutes to an hour), and test the new battery before you leave.
Bring your iPhone and a photo ID. Apple will ask for your Apple ID password to disable Find My iPhone before opening the device. The battery replacement includes a one-year warranty on the new battery, and your device warranty is not affected. If your iPhone is still under the original one-year limited warranty or you have AppleCare+, battery replacement may be covered at no cost.
Doing a DIY battery replacement with a kit
Battery replacement kits are sold on Amazon, iFixit, and other retailers. A kit typically includes the replacement battery, a pentalobe screwdriver (the five-pointed tool Apple uses), a spudger (a plastic prying tool), tweezers, and an adhesive strip to reseal the back panel. Before you start, back up your iPhone to iCloud or a computer, disable Find My iPhone in Settings > [Your Name] > Find My > Find My iPhone, and power off the phone completely.
The general steps are: remove the two pentalobe screws at the bottom of the phone, use a heat gun or hair dryer to warm the edges so the adhesive softens, carefully pry up the back panel with the spudger, disconnect the battery connector inside, remove the old battery (which is glued down), install the new battery, reconnect the battery connector, and reseal the back panel with the new adhesive strip. The exact order and tool names vary slightly by iPhone model, so follow the kit's instructions or watch a video for your specific model before you start.
Common mistakes include prying too hard and cracking the screen, pulling the battery connector at an angle and breaking the socket, or not warming the adhesive enough and cracking the back panel. If you damage the water seals during this process, your phone will be vulnerable to liquid damage even if everything still works. Most people who attempt DIY replacement succeed, but if you are not comfortable with small, precise work, the $69 to $99 Apple charges is worth the peace of mind.
Using an authorized third-party repair shop
Authorized Apple repair partners include Best Buy (Geek Squad), Micro Center, and independent shops certified through Apple's Independent Repair Provider program. You can find certified shops at apple.com/repair by entering your zip code and filtering for "Independent Repair Providers." These shops use genuine Apple parts, offer warranties on their work, and do not void your device warranty the way DIY repair does.
Call ahead to confirm they have your iPhone model's battery in stock and ask whether they use genuine Apple batteries or aftermarket ones. Turnaround time is usually one to three business days. Pricing varies by shop but typically ranges from $50 to $80. Ask what warranty they offer on the replacement battery—reputable shops offer at least 30 days, and many offer 90 days or longer.
What happens to your data during battery replacement
If you use Apple's official service or an authorized repair shop, your data stays on the phone. The technician disables Find My iPhone, opens the device, replaces the battery, and powers it back on. You will need to re-enter your Apple ID password to re-enable Find My iPhone, but all your photos, messages, apps, and settings remain unchanged.
If you do a DIY replacement, your data is also safe as long as you do not erase the phone. However, if something goes wrong during the repair and the phone will not power on, you may need to restore it from a backup using a computer or iCloud. This is why backing up before you start is essential.
Cost comparison: DIY vs. Apple vs. third-party shops
| Route | Cost | Time | Warranty | Risk |
|---|---|---|---|---|
| DIY kit | $20–$50 | 30 min–2 hours | Varies by kit (often 30–90 days) | Voids device warranty; risk of damage to screen, logic board, or seals |
| Apple official | $69–$99 | 3–5 business days (or 30 min–1 hour in-store) | 1 year on battery; device warranty unaffected | None; covered by Apple's service may provide |
| Authorized third-party | $50–$80 | 1–3 business days | 30–90 days (varies by shop) | Low; uses genuine parts and certified technicians |
Frequently Asked Questions
Will replacing the battery make my iPhone feel new again?
A new battery will restore charging speed and battery life, so your phone will last longer on a single charge and charge faster. However, if your phone is old, other components like the processor or screen may feel slower or dimmer. Battery replacement solves battery problems, not age-related slowness in other parts.
Can I replace the battery myself if my iPhone is water-resistant?
You can open a water-resistant iPhone, but you will break the water seals in the process. After DIY replacement, your phone will no longer be water-resistant unless you use a specialized adhesive kit designed to reseal it. Apple and authorized shops have the proper sealing equipment and materials to maintain water resistance after replacement.
What if I buy a cheap third-party battery instead of a genuine Apple battery?
Cheap aftermarket batteries often hold less charge, degrade faster, and may not report accurate battery health to your phone's system. Some can overheat or swell. Genuine Apple batteries are more expensive upfront but last longer and are safer. If you use a third-party shop, ask specifically whether they use genuine Apple batteries or aftermarket ones.
How long does a new iPhone battery last?
A new genuine Apple battery typically lasts two to three years of normal use before it drops below 80 percent capacity. This equals roughly 500 to 1,000 full charge cycles. The exact lifespan depends on how often you charge, whether you let the battery fully drain, and the temperature where you use the phone.
Do I need to replace the battery if my iPhone is still under warranty?
If your iPhone is less than one year old and the battery holds less than 80 percent capacity, Apple will replace it for free under the limited warranty. If you have AppleCare+, battery replacement is covered for the full two-year protection period. Check your coverage at apple.com/support by entering your serial number.