How To Keep Your iPhone Battery Health at 100%

Written by: Joanavi Fernan

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Maximize Your iPhone 15's Battery Life

For those who are always on the go, an iPhone is the constant companion we rely on daily. We've all felt that panic when we pick up our iPhone and see the dreaded low battery alert, frantically looking for an outlet before it powers down. As iPhone users, we want to use our phones freely without worrying about battery life. 


In this post, we'll share some simple tips and tricks I've picked up over the years that can help keep your iPhone battery charged up to 100% longer so you can use it stress-free all day. From optimizing settings to changing your charging habits, these strategies could finally give you the freedom and peace of mind from the battery anxiety we crave. Keep reading to learn how to become a battery life pro!

Understanding iPhone Battery Health

Your iPhone's battery health is more than just a number—it's the heartbeat of your phone, powering all its features. Every day, seemingly small habits can whittle away at your battery life. Factors like temperature changes, the number of charge cycles, and even how you charge your phone can gradually eat into your battery's lifespan. This can lead to more frequent encounters with the dreaded 'low battery' alert than you'd like.



Apple introduced the Battery Health feature to offer iPhone users transparency about their battery's state. It's a real game-changer for those who want to stay on top of our device's wellbeing. High battery capacity isn't just about less time tethered to a charger. It also means your iPhone won't slow down because of an old, tired battery. It's all about keeping your iPhone running smoothly and efficiently.

Best Tips For Maximizing iPhone Battery Life

Best Tips For Maximizing  Battery Life

1. Adjusting Display Settings

The beautiful, high-resolution screen on your iPhone is a power hog. A few tweaks go a long way to conserve battery. Start by adjusting the brightness—keeping it at reasonable levels, enabling auto-brightness, and even considering 'Reduce White Point' indoors. This trick doesn't just save battery; it also provides a more comfortable viewing experience.

2. Managing Background App Refresh

While it's convenient for apps to stay updated without your intervention, it's not the most efficient battery use. Head to Settings > General > Background App Refresh and pick and choose which apps need this feature enabled. Focus on critical apps to minimize battery drain.

4. Optimizing Battery Usage

iOS allows you to manage your iPhone's battery life by showing how much battery each app uses. To see this, go to Settings > Battery.



The list may include:


  • Location and Background Location: The app is using location services. You can save battery by turning off Location Services in Settings > Privacy > Location Services.
  • Home & Lock Screen: Your Home or Lock screen was displayed. If an app sends too many notifications, causing the screen to wake up often, you can turn off its notifications in Settings > Notifications.
  • No Cell Coverage and Low Signal: Your device is searching for a signal or has been used in a low-signal area. To save battery, turn on Airplane mode from the Control Center.

4. Avoiding Extreme Temperatures

iPhones perform best at temperatures between 32° to 95° F (0° to 35° C). Exposure to hot or cold environments can degrade battery performance. On days when the weather is less forgiving, keep your iPhone within these operational temperatures for the best battery health.

5. Limiting Battery-Draining Features

Bluetooth, location services, and push notifications can accelerate battery drainage, especially when they are active in large numbers. Periodic reviews of your settings can help you manage what's necessary and not, preserving valuable power along the way.

Optimizing Battery Usage

6. Plug it on A Switch On Computer

If you're charging your iOS device using a USB connected to your computer, ensure the computer is powered on and plugged in. If your device is hooked up to a computer that's switched off or in sleep mode, your device's battery could end up draining.

7. Switch on Low Power Mode

Low Power Mode was introduced with iOS 9 as a simple way to make your iPhone's battery last longer when running low. Your iPhone will give you a heads-up when your battery level drops to 20% and again at 10%, offering you the option to switch on Low Power Mode with just one tap. Alternatively, you can activate it by navigating to Settings > Battery.


When Low Power Mode is on, your display brightness dims, your device performance is optimized, and system animations are minimized. Certain apps, like Mail, won't download content in the background, and features such as AirDrop, iCloud sync, and Continuity get temporarily disabled. But don't worry, you can still use essential functions like making and receiving phone calls, sending and receiving emails and messages, browsing the web, and more. As soon as your phone charges back up, Low Power Mode automatically turns off.

Extend Your iPhone 15 Battery Life

Maintaining Battery Health in the Long Run

The secret to keeping your iPhone battery in good shape isn't just a bunch of tips—it's all about habits. It's a good idea to maintain your iPhone's battery level between 20% and 80% and avoid letting it fully drain if you can help it. Also, getting friendly with Apple's 'optimized battery charging' feature can be a lifeline in dodging unnecessary charge cycles and making your battery last longer.



Apple often rolls out software updates, including tweaks to boost power efficiency and extend battery life. So, keeping your iPhone updated for its overall wellbeing is a good move.

Case Studies and Success Stories

Within the vast iPhone user community, real-life experiences are key to understanding these practices' effectiveness. There are plenty of folks out there who've stuck to the guidelines and managed to keep their battery health surprisingly high. Their stories are both inspiring and reassuring, showing us that it's entirely possible to maintain excellent battery health.

Wrapping Up

While Apple continues to deliver sleek designs and impressive features, it also provides robust batteries in its latest models. But keeping those batteries in top form is up to you, the user. By applying the strategies discussed here, you're ensuring your iPhone stays in tip-top shape for longer. As these tips are part of your everyday routine, remember that good things take time—your battery health will gradually improve. So get ready for a future with your iPhone that's brighter and more charged up.

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Frequently Asked Questions

1. How long does the iPhone 15 battery life last?

When comparing the battery life of the different iPhone 15 models, there are noticeable differences due to their varying battery capacities. The standard iPhone 15 has a battery capacity of 3,349 mAh, translating to approximately 11 hours and 5 minutes of usage time. On the other hand, the iPhone 15 Plus, with its larger battery capacity of 4,383 mAh, can last around 14 hours and 14 minutes, making it a better choice for those who require longer battery life.
The iPhone 15 Pro, despite having a slightly lower capacity of 3,274 mAh compared to the standard iPhone 15, still delivers around 10 hours and 53 minutes of usage time. However, the iPhone 15 Pro Max outperforms all with its significant 4,422 mAh battery capacity, providing around 14 hours and 2 minutes of usage time.


 Therefore, if you're seeking the most extended battery life, the iPhone 15 Plus and the iPhone 15 Pro Max are your best options, with the Pro Max offering the highest capacity. Despite this, all models provide substantial battery life suitable for daily use. 

2. Will the Apple store replace iPhone batteries?

Yes, Apple stores can replace iPhone batteries. If you're finding that your iPhone's battery is shorter than it used to, you can reach out to your local Apple store or an authorized service provider to explore battery replacement options. Note that this service might only be available in some places and could depend on your iPhone model.



Apple designs batteries to maintain up to 80% of their original capacity through 500 complete charge cycles. If your battery is defective within the one-year warranty, it's covered for service. Once the warranty has expired, you can still get Battery Service through a local Apple Authorized Service Provider. The cost and details of this service can vary.

3. Does an iPhone's battery health improve after an update?

An iPhone's battery health typically doesn't naturally boost after a software update. Battery health relates to the physical state and capacity of the battery, which can deteriorate over time due to factors like usage habits, temperature, and how you charge it.


Yet, software updates can indirectly influence battery performance:


1. Efficiency Improvements: Software updates often come with enhancements that lead to more efficient use of the device's hardware, including the battery. These improvements can result in better battery life and performance.



2. Bug Resolutions: Updates frequently fix software glitches that might affect battery life. Fixing these issues can make the device run more smoothly, enhancing battery performance.



3. Battery Management Tools: Some updates introduce new features to extend battery life or slow battery wear and tear. For instance, Apple added Battery Health management features in iOS updates to help extend the overall lifespan of iPhone batteries.
Remember, while updates can positively impact battery performance, they don't directly boost the physical capacity or health of the battery itself. If you notice a significant drop in battery health or performance over time, replacing the battery with a new one may be needed to regain optimal performance.

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Joan F.

I'm a tech nerd who's obsessed with technology and innovation. With plenty of experience in the tech world, I enjoy sharing tips and tricks to help folks get the most out of their devices. When I'm not glued to my screen, you can find me hiking or cooking up in the kitchen.