iPhone Battery Cycle Count: Complete Guide (2026) – Check, Understand & Extend
Your iPhone battery doesn't last forever. But how do you know when it's time to replace it? The answer lies in a number called the iPhone battery cycle count.
If you've ever wondered what a "cycle" means, how to check your cycle count, or whether 500 cycles is a lot, you're in the right place. Apple has made it easier than ever to check your battery cycle count directly on newer iPhones. But even if you have an older model, there are ways to find out.
This guide covers everything you need to know about iPhone battery cycle count — what it is, how to check it on any iPhone, what a good cycle count looks like, and how to extend your battery's lifespan. Let's get started.
📌 What Is iPhone Battery Cycle Count?
Your iPhone's battery cycle count is the number of times you've used 100% of your battery's capacity. One cycle equals using 100% of the battery, whether that's over one day or several days. For example, using 50% one day and 50% the next counts as one cycle. iPhone 14 and earlier are rated for 500 cycles at 80% capacity. iPhone 15 and later are rated for 1,000 cycles at 80% capacity.
🔑 Key Takeaways
- Cycle count measures how many times you've used 100% of your battery capacity.
- iPhone 14 and earlier are rated for 500 cycles at 80% capacity. iPhone 15 and later are rated for 1,000 cycles.
- You can check cycle count on iPhone 15 and newer directly in Settings. Older models can check via Analytics Data or a Mac.
- A battery with 300-500 cycles is moderately used. 500+ cycles means the battery is aging.
- Apple recommends replacement when Maximum Capacity drops below 80%.
- 1. What Is iPhone Battery Cycle Count?
- 2. Battery Health vs Cycle Count
- 3. How Apple Calculates Battery Cycles
- 4. How to Check iPhone Battery Cycle Count
- 5. Which iPhones Show Cycle Count in Settings?
- 6. What Is a Good Battery Cycle Count?
- 7. Maximum Battery Cycles According to Apple
- 8. When Should You Replace Your iPhone Battery?
- 9. Does Charging Overnight Increase Cycle Count?
- 10. Does Fast Charging Affect Battery Cycles?
- 11. Tips to Reduce Battery Cycle Count
- 12. Common Mistakes That Reduce Battery Life
- 13. Signs Your Battery Is Worn Out
- 14. Troubleshooting
- 15. FAQs
- 16. Final Verdict
What Is iPhone Battery Cycle Count?
Your iPhone's battery cycle count is a number that represents how many times you've used 100% of your battery's capacity. It's not about how many times you've plugged in the charger. Instead, it's about the total amount of energy you've used.
Think of it like a car's odometer, but for your battery. One cycle equals using 100% of the battery's capacity. Here's how it works in practice:
- You use 50% of your battery today and 50% tomorrow — that's one cycle.
- You use 100% of your battery in a single day — that's one cycle.
- You use 25% for four days in a row — that's one cycle.
A battery cycle isn't about how many times you plug in your iPhone. It's about how much total energy you've used. This means partial charges throughout the day add up to a full cycle — not each charging event counts separately.
The battery cycle count is a key indicator of how much your battery has been used. As the cycle count increases, the battery's ability to hold a charge gradually decreases. Apple designs its batteries to retain a certain percentage of capacity after a specific number of cycles.
According to Apple, iPhone 14 models and earlier are designed to retain 80% of their original capacity at 500 complete charge cycles under ideal conditions. iPhone 15 models and later are designed to retain 80% of their original capacity at 1,000 complete charge cycles under ideal conditions.
Battery Health vs Cycle Count: What's the Difference?
Many people confuse battery health (Maximum Capacity) with cycle count. They are related but measure different things.
| Feature | Battery Health (Maximum Capacity) | Cycle Count |
|---|---|---|
| What It Measures | How much charge your battery can hold compared to when it was new | How many times you've used 100% of the battery's capacity |
| Displayed As | Percentage (e.g., 85%) | Number (e.g., 324) |
| What It Tells You | Current capacity relative to new | How much the battery has been used |
| Relationship | Decreases as cycle count increases | Increases with usage |
| Apple's Rating | 80% at 500 cycles (iPhone 14) or 1,000 cycles (iPhone 15+) | 500 or 1,000 cycles at 80% capacity |
| When to Replace | Below 80% | Approaching 500 or 1,000 cycles |
In simple terms: battery health tells you how much capacity remains. Cycle count tells you how much the battery has been used. Both are important for understanding your battery's condition.
How Apple Calculates Battery Cycles
Apple tracks battery cycles using a sophisticated system that monitors the actual energy discharged from the battery. The system doesn't just count charges — it measures the total energy used.
Here's how it works in practice:
- One cycle equals using 100% of the battery's capacity, regardless of how many times you plug it in.
- If you use 60% one day and 40% the next, that's one cycle.
- If you use 10% ten times, that's one cycle.
| Day 1 | Day 2 | Day 3 | Day 4 | Total Cycles |
|---|---|---|---|---|
| 50% | 50% | — | — | 1 |
| 100% | — | — | — | 1 |
| 25% | 25% | 25% | 25% | 1 |
| 70% | 30% | — | — | 1 |
| 40% | 40% | 20% | — | 1 |
Apple's battery management system tracks this data continuously. The cycle count is updated regularly and is visible in the Battery Health section on supported devices.
Apple also accounts for the expected diminishing capacity over time. A "complete charge cycle" is normalized between 80% and 100% of the original capacity to account for battery aging.
How to Check iPhone Battery Cycle Count
There are several ways to check your iPhone battery cycle count, depending on your iPhone model and iOS version. Here's every method.
📌 How to Check iPhone Battery Cycle Count
On iPhone 15 and newer with iOS 17.4 or later, go to Settings > Battery > Battery Health to see Cycle Count. On iPhone 16 with iOS 18, it's also visible there. For iPhone 11-14, check via Settings > Privacy & Security > Analytics & Improvements > Analytics Data — search for "BatteryCycleCount" in the most recent file. You can also use a Mac with CoconutBattery or a Windows PC with iMazing.
Method 1: Settings (iPhone 15 and newer)
If you have an iPhone 15 or newer running iOS 17.4 or later, checking the cycle count is simple:
- Open Settings.
- Tap Battery.
- Tap Battery Health (on iPhone 15 and newer) or Battery Health & Charging (on older models).
- Look for Cycle Count. You'll also see Maximum Capacity, Manufacture Date, and First Use Date.
Method 2: Settings (iPhone 16 with iOS 18)
On iPhone 16 with iOS 18, the cycle count is also displayed in the Battery Health section. The process is the same as above.
Method 3: Settings (iPhone 11-14 via Analytics Data)
For iPhone 11, 12, 13, and 14, the cycle count isn't displayed directly in Settings. But you can find it in the Analytics Data:
- Go to Settings > Privacy & Security > Analytics & Improvements.
- Tap Analytics Data.
- Find the most recent analytics file (it starts with "Analytics-" and has a date).
- Open the file and search for "BatteryCycleCount". The number next to it is your cycle count.
Method 4: Using a Mac (CoconutBattery)
If you have a Mac, you can use CoconutBattery (a free app) to check your iPhone's cycle count:
- Download and install CoconutBattery on your Mac.
- Connect your iPhone to your Mac via USB.
- Open CoconutBattery and click on the iOS Device tab.
- You'll see the Cycle Count along with other battery information.
Method 5: Using a Windows PC (iMazing or 3uTools)
On Windows, you can use iMazing or 3uTools to check the cycle count:
- Download and install iMazing or 3uTools on your PC.
- Connect your iPhone via USB.
- Open the app and navigate to the battery information section.
- You'll see the Cycle Count displayed.
Method 6: Using a Shortcut
You can also use a Shortcut to read the cycle count from the analytics file. Search for "Battery Cycle Count" in the Shortcuts Gallery or create your own shortcut to extract the data.
Method 7: Apple Support
If you're unable to check the cycle count yourself, you can contact Apple Support and they can run a remote diagnostic to tell you the cycle count.
Which iPhones Show Cycle Count in Settings?
Not all iPhones show the cycle count directly in Settings. Here's the breakdown:
| Model | Cycle Count in Settings? | Minimum iOS |
|---|---|---|
| iPhone 11, 12, 13, 14 | No | — |
| iPhone 15, 15 Plus, 15 Pro, 15 Pro Max | Yes | iOS 17.4+ |
| iPhone 16, 16 Plus, 16 Pro, 16 Pro Max | Yes | iOS 18+ |
| iPhone 17, 17 Air, 17 Pro, 17 Pro Max | Yes | iOS 18.3+ |
| Older iPhones (iPhone X and earlier) | No | — |
On iPhone 15 and newer with iOS 17.4 or later, you can see the cycle count in Settings > Battery > Battery Health. You'll also see the battery's manufacture date and first use date.
What Is a Good Battery Cycle Count?
📌 What Is a Good Battery Cycle Count?
0-100 cycles is excellent — battery is nearly new. 100-300 cycles is good — battery is healthy. 300-500 cycles is moderate — battery is aging. 500-800 cycles is aging — noticeable shorter battery life. 800+ cycles means replace soon — battery is near end of life. iPhone 14 and earlier are rated for 500 cycles; iPhone 15 and later are rated for 1,000 cycles.
A "good" cycle count depends on the age of your iPhone and how much you use it. Here's a general guide:
| Cycle Count | Status | What It Means | Expected Battery Health |
|---|---|---|---|
| 0 – 100 | Excellent | Battery is nearly new. | 95-100% |
| 100 – 300 | Good | Battery is healthy. Full performance. | 90-95% |
| 300 – 500 | Moderate | Battery is aging. Slightly shorter life. | 85-90% |
| 500 – 800 | Aging | Battery is well-used. Noticeably shorter life. | 80-85% |
| 800+ | Replace Soon | Battery is near end of life. | Below 80% |
For iPhone 14 and earlier, Apple's rating is 500 cycles at 80% capacity. For iPhone 15 and later, the rating is 1,000 cycles at 80% capacity.
Real-world example: If you have an iPhone 13 with 300 cycles and 85% battery health, that's considered normal. If you have an iPhone 15 with 200 cycles and 92% battery health, that's excellent.
Maximum Battery Cycles According to Apple
Apple has official ratings for how many cycles an iPhone battery can handle before dropping to 80% capacity:
- iPhone 14 models and earlier: 500 complete charge cycles
- iPhone 15 models and later: 1,000 complete charge cycles
These ratings are under ideal conditions. In real-world usage, the exact capacity percentage depends on how the device is regularly used and charged.
Apple's one-year warranty includes service coverage for a defective battery, but normal wear and tear is not covered.
When Should You Replace Your iPhone Battery?
📌 When Should I Replace My iPhone Battery?
Apple recommends considering battery replacement when the Maximum Capacity drops below 80%. This typically happens around 500 cycles for iPhone 14 and earlier, and around 1,000 cycles for iPhone 15 and later. Replace sooner if you experience unexpected shutdowns, sluggish performance, or battery drains too quickly.
Apple recommends considering battery replacement when the Maximum Capacity drops below 80%. At this point, the battery has significantly degraded and may cause unexpected shutdowns or reduced performance.
Here are the signs that it's time to replace your battery:
- Maximum Capacity is below 80% — This is Apple's official threshold.
- Cycle count is near or above 500 (for iPhone 14 and earlier) or 1,000 (for iPhone 15 and later).
- Unexpected shutdowns — Your iPhone turns off even when showing battery charge remaining.
- Performance feels sluggish — Apps take longer to open or animations stutter.
- Battery drains quickly — You can't get through a normal day without charging.
- You see "Service" in Battery Health — iOS displays a service recommendation.
If you have AppleCare+, battery replacement is free if your battery holds less than 80% of its original capacity. Without AppleCare+, replacement costs vary by model.
Does Charging Overnight Increase Cycle Count?
No. Charging overnight does not directly increase the cycle count. The cycle count only measures discharge, not charge. Leaving your iPhone plugged in overnight doesn't add to the cycle count.
However, keeping the battery at 100% for extended periods can accelerate chemical aging, which may reduce the overall lifespan of the battery. This is why Apple introduced Optimized Battery Charging, which learns your charging routine and delays charging past 80% until you need it.
False. Cycle count is based on energy discharged, not charging events.
Keeping the battery at 100% for long periods can reduce its lifespan. Use Optimized Battery Charging to mitigate this.
Does Fast Charging Affect Battery Cycles?
No. Fast charging does not increase the cycle count. The cycle count is based on the amount of energy discharged, not how quickly the battery is charged.
However, fast charging generates more heat, which can accelerate battery aging. Heat is one of the biggest enemies of lithium-ion batteries. While fast charging is safe and designed by Apple, using it regularly may slightly reduce the total number of cycles your battery can achieve.
For maximum longevity, use a slower 5W-12W charger for overnight charging and save fast charging for when you need it.
Tips to Reduce Battery Cycle Count (And Extend Battery Life)
You can't reduce the cycle count, but you can slow down how quickly it increases. Here are 20 actionable tips to extend your battery's lifespan.
- Keep your battery between 20% and 80% — Lithium-ion batteries are happiest in this range. Avoid draining to 0% or charging to 100% every time.
- Enable Optimized Battery Charging — Settings > Battery > Battery Health & Charging. This delays charging past 80% until you need it.
- Use the Charge Limit feature — On iPhone 15 and newer, set a charge limit between 80% and 95% for daily use.
- Avoid extreme temperatures — Heat is the #1 enemy of batteries. Don't leave your iPhone in direct sunlight or a hot car.
- Remove thick cases while charging — Cases trap heat, which can damage the battery.
- Avoid fast charging when you don't need it — Use a slower charger for overnight charging.
- Don't let your battery drain to 0% — Deep discharges stress the battery. Plug in at 20% or higher.
- Use Wi-Fi instead of cellular — Cellular connections, especially 5G, consume more power and cause more cycles.
- Reduce screen brightness — Lower brightness saves battery and reduces heat.
- Enable Dark Mode — On OLED models, Dark Mode saves battery by turning off pixels.
- Turn off Background App Refresh — Settings > General > Background App Refresh. Set to Wi-Fi or Off.
- Disable unnecessary Location Services — Settings > Privacy & Security > Location Services. Change "Always" to "While Using" for most apps.
- Turn off Always-On Display — On Pro models, disabling Always-On Display can save significant battery.
- Use Low Power Mode — Enable it when your battery is low to reduce background activity.
- Keep your iPhone updated — Apple often includes battery optimizations in software updates.
- Use certified chargers and cables — MFi-certified chargers deliver stable voltage and protect your battery.
- Avoid using your iPhone while charging — Especially for gaming or video streaming, as it generates heat.
- Turn off keyboard haptics — Settings > Sounds & Haptics > Keyboard Feedback. Turn off Sound and Haptic.
- Remove unnecessary Lock Screen widgets — They refresh in the background and consume battery.
- Check your battery usage regularly — Settings > Battery to see which apps are draining your battery.
Common Mistakes That Reduce Battery Life
- Letting your battery drain to 0% regularly — This stresses the battery and reduces its lifespan. Lithium-ion batteries perform best with partial charges.
- Keeping your battery at 100% for extended periods — This accelerates chemical aging. Avoid leaving your iPhone plugged in at 100% for hours.
- Using cheap, uncertified chargers — They can deliver unstable voltage and damage the battery. Always use MFi-certified chargers.
- Using your iPhone in direct sunlight — Heat permanently reduces battery capacity. Keep your iPhone cool.
- Not updating iOS — Apple often includes battery optimizations in updates. Stay current.
- Keeping Bluetooth and Wi-Fi on when not in use — Both consume power. Turn them off when you don't need them.
- Ignoring battery health warnings — If iOS says "Service," it's time to replace the battery. Don't wait until it fails.
Signs Your iPhone Battery Is Worn Out
- Maximum Capacity below 80%
- Cycle count near or above 500 (iPhone 14) or 1,000 (iPhone 15+)
- Unexpected shutdowns even with battery remaining
- Performance feels sluggish
- Battery percentage jumps erratically
- You see "Service" in Battery Health
- Battery drains unusually fast
Troubleshooting
1. My iPhone Doesn't Show Battery Cycle Count
Cause: You have an iPhone 14 or earlier, or you're not running the latest iOS.
Fix: Use the Analytics Data method, or connect to a Mac with CoconutBattery. Alternatively, update to the latest iOS version.
2. Battery Cycle Count Is Wrong or Not Updating
Cause: The cycle count updates every 24 hours, not in real-time.
Fix: Wait 24 hours and check again. If it's still wrong, restart your iPhone.
3. Cycle Count Not Updating After Charging
Cause: The cycle count only updates when you've used 100% of the battery's capacity.
Fix: Use your iPhone normally. The cycle count will update when you've reached a full cycle.
4. Battery Health Dropped Suddenly
Cause: Battery health can recalibrate after iOS updates or significant usage changes.
Fix: Give it a few days. If it continues dropping, consider a battery replacement.
Frequently Asked Questions
A battery cycle count is the number of times your iPhone has used 100% of its battery capacity. It's not about how many times you've plugged in the charger, but the total amount of energy discharged. One cycle equals using 100% of the battery's capacity, whether that's over one day or several days.
On iPhone 15 and newer with iOS 17.4 or later, go to Settings > Battery > Battery Health to see Cycle Count. On iPhone 16 with iOS 18, it's also visible there. For older models, you can check via the Analytics Data file, using a Mac with CoconutBattery, or using a Shortcut.
0-100 cycles is excellent. 100-300 cycles is good. 300-500 cycles is moderate. 500-800 cycles means the battery is aging. 800+ cycles means the battery is near the end of its useful life. iPhone 14 and earlier are rated for 500 cycles, while iPhone 15 and later are rated for 1,000 cycles.
Yes, 300 battery cycles is considered good for an iPhone. At 300 cycles, your battery should still retain about 85-90% of its original capacity depending on your charging habits. For iPhone 14 and earlier, you're just over halfway to the 500-cycle rating. For iPhone 15 and later, you're about a third of the way to the 1,000-cycle rating.
For iPhone 14 and earlier, 500 cycles is the rated lifespan — at this point, the battery should retain about 80% of its original capacity. This isn't 'bad' but it means the battery is reaching the end of its designed life. For iPhone 15 and later, 500 cycles is about halfway through the rated 1,000-cycle lifespan. A battery with 500 cycles is considered moderately used.
For iPhone 14 and earlier, 700 cycles is beyond the 500-cycle rating — the battery likely holds less than 80% of its original capacity. You'll probably notice significantly shorter battery life. For iPhone 15 and later, 700 cycles is still within the 1,000-cycle rating but getting close to the replacement threshold. At this point, consider checking your battery health and planning for a replacement.
For iPhone 14 and earlier, 1,000 cycles is well beyond the rated lifespan — you should have replaced the battery long ago. For iPhone 15 and later, 1,000 cycles is the rated lifespan, meaning the battery should retain about 80% of its original capacity. At 1,000 cycles, you're at the design limit and should consider replacement if you're experiencing battery issues.
iPhone 14 and earlier are designed to retain 80% capacity at 500 complete charge cycles. iPhone 15 and later are designed to retain 80% capacity at 1,000 complete charge cycles. Actual lifespan depends on usage patterns and charging habits. Some batteries may last longer or shorter than these ratings.
A high cycle count means your battery has been used extensively and is closer to the end of its useful life. As the cycle count increases, the battery's maximum capacity decreases, leading to shorter battery life and potential performance issues. The iPhone's performance management system may also throttle performance to prevent unexpected shutdowns.
No, wireless charging does not directly increase the cycle count. The cycle count is based on how much energy is discharged from the battery, not how it's charged. However, wireless charging generates more heat than wired charging, and heat is a major factor in battery degradation. This can potentially reduce the total number of cycles your battery can achieve over its lifetime.
MagSafe charging is safe and designed by Apple to work with iPhones. However, like all wireless charging, it generates more heat than wired charging. Heat accelerates battery aging. While MagSafe won't directly damage your battery, using it frequently may slightly reduce the overall lifespan compared to slower wired charging. Apple has built-in thermal management to protect the battery during MagSafe charging.
No. Charging overnight does not directly increase the cycle count because cycle count only measures discharge, not charge. However, keeping the battery at 100% for extended periods can accelerate chemical aging, which may reduce the overall lifespan of the battery. Enable Optimized Battery Charging to mitigate this.
No. Fast charging does not increase the cycle count. Cycle count is based on energy discharged, not how quickly the battery is charged. However, fast charging generates more heat, which can accelerate battery aging and reduce the total number of cycles the battery can achieve. Use fast charging only when needed.
For most users, 500 battery cycles represents about 2 to 2.5 years of regular use. If you're a heavy user who drains the battery fully every day, you might reach 500 cycles in about 1.5 years. Light users who charge every other day might take 3-4 years to reach 500 cycles. The exact time varies based on your daily usage and charging habits.
Apple cannot reset the battery cycle count. The cycle count is a hardware-based measurement stored in the battery's internal management system. When you replace the battery with a genuine Apple battery, the cycle count resets to 0 because it's a new battery. Third-party batteries may not show the cycle count correctly and may not reset the count.
Yes, when you replace your iPhone battery with a genuine Apple battery, the cycle count resets to 0. The battery management system recognizes the new battery and starts tracking cycles from zero. However, if you replace the battery with a non-genuine third-party battery, the cycle count may not display correctly or may not reset at all.
Yes, the cycle count reported by iOS is accurate. It's based on the actual energy discharged from the battery, tracked by the battery management system. The count updates every 24 hours and is used by Apple for diagnostics and warranty purposes. The count is considered reliable for assessing battery usage and lifespan.
Battery health (Maximum Capacity) measures how much charge your battery can hold compared to when it was new. Cycle count measures how many times you've used 100% of the battery's capacity. They are related: as cycle count increases, battery health typically decreases. Battery health is displayed as a percentage, while cycle count is a number.
iPhone 11 does not show cycle count in Settings. You can check it by going to Settings > Privacy & Security > Analytics & Improvements > Analytics Data, finding the most recent analytics file, and searching for 'BatteryCycleCount'. You can also use a Mac with CoconutBattery or a third-party app.
On iPhone 16 or later with iOS 18, go to Settings > Battery > Battery Health & Charging. You'll see Cycle Count, Maximum Capacity, Manufacture Date, and First Use Date. This information is displayed directly in the Battery Health section.
Yes. iOS 26 retains the Battery Health section where you can check cycle count and maximum capacity. Apple has redesigned the Battery settings page in iOS 26 to offer improved usage statistics and a new feature to extend battery life, but the cycle count remains easily accessible in Settings > Battery > Battery Health.
Apple recommends considering battery replacement when the Maximum Capacity drops below 80%. This typically happens around 500 cycles for iPhone 14 and earlier, and around 1,000 cycles for iPhone 15 and later. If you're experiencing unexpected shutdowns or significant performance issues, replace it sooner.
A high cycle count itself doesn't damage the iPhone, but it indicates the battery is aging. An aged battery can cause unexpected shutdowns, reduced performance, and shorter battery life. The iPhone's performance management system may also throttle performance to prevent shutdowns.
You can't reduce the cycle count, but you can slow down how quickly it increases. Keep your battery between 20% and 80%, avoid extreme temperatures, enable Optimized Battery Charging, and avoid draining the battery to 0% frequently. These habits will help your battery last longer.
Apple's one-year warranty covers a defective battery. If your battery fails within the warranty period, Apple will replace it for free. However, normal battery wear and tear (where the battery still holds above 80% capacity) is not covered. AppleCare+ covers battery replacement if it drops below 80% during the coverage period.
On iPhone 15 or later, you can check it directly in Settings > Battery > Battery Health. For older models, you can use the Analytics Data method, or download a third-party app like Battery Life or a Shortcut that reads the analytics file to display the cycle count.
The iPhone 16 is designed to retain 80% of its original capacity at 1,000 complete charge cycles, which is double the 500-cycle rating of older models. This means the battery in iPhone 16 is significantly more durable than previous generations.
On iPhone 15, the Cycle Count shows the number of times the battery has been fully discharged and recharged. One cycle is completed when you've used 100% of the battery's capacity, whether that's over one day or multiple days. This number helps you understand the battery's usage history.
The cycle count updates every 24 hours, not in real-time. If you've recently used your battery, wait 24 hours and check again. If it still hasn't updated, restart your iPhone. The count may also not update if you haven't completed a full cycle yet (used 100% of the battery's capacity).
Final Verdict
Your iPhone's battery cycle count is the single best indicator of how much life your battery has left. It tells you how many times you've used 100% of the battery's capacity, which directly correlates with its remaining lifespan.
If you have an iPhone 14 or earlier, aim for fewer than 500 cycles. If you have an iPhone 15 or later, you have a 1,000-cycle rating. When your cycle count approaches these numbers and your Maximum Capacity drops below 80%, it's time to consider a battery replacement.
Check your cycle count today. Your battery will thank you.
- Check your cycle count before buying a used iPhone — It's the best way to assess battery health.
- Monitor your cycle count every 6 months — This helps you plan for battery replacement.
- Use Optimized Battery Charging — It's the single most effective setting for extending battery life.
- Avoid heat — Heat is the #1 enemy of lithium-ion batteries.
External Resources
- Apple Support: About the battery and performance of iPhone 11 and later
- Apple: Batteries – Why Lithium-Ion?
- Apple Support: Maximizing battery lifespan
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