
Taking care of your Apple phone's battery is crucial to its longevity. You can expect your iPhone battery to retain up to 80% of its original capacity after 500 complete charge cycles.
To maintain your battery's health, it's essential to avoid extreme temperatures. This means keeping your phone away from direct sunlight or freezing temperatures, which can cause damage.
Aging is also a factor in battery degradation, with Apple estimating that an iPhone battery will naturally lose up to 20% of its capacity after a year of normal use.
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Battery Life
Extending your iPhone battery life is a straightforward process. You can slow down the aging process by updating your iOS version and avoiding extreme temperatures.
To preserve battery life, adjust your screen brightness by dimming it or enabling Auto-Brightness, which adjusts your screen to lighting conditions automatically. You can do this by opening Control Center and dragging the Brightness slider to the bottom, or by going to Settings > Accessibility, tapping Display & Text Size, and turning on Auto-Brightness.
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Using Wi-Fi instead of a cellular network can also help extend battery life. To turn on Wi-Fi, go to Settings > Wi-Fi to access a Wi-Fi network. This is because Wi-Fi uses less power than a cellular network.
You can also enable Low Power Mode to extend your battery life. This mode reduces display brightness, optimizes device performance, and minimizes system animations. You can enable it by going to Settings > Battery, or by turning it on with one tap when your battery level goes down to 20% or 10%.
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Optimize Your Settings
Optimize your settings to squeeze out a bit more life from your device's battery. Adjusting your screen brightness is a simple way to do this.
Dim the screen by dragging the Brightness slider to the bottom in Control Center. Alternatively, turn on Auto-Brightness to adjust your screen to lighting conditions automatically - just go to Settings > Accessibility, tap Display & Text Size, and turn on Auto-Brightness.
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Using Wi-Fi instead of cellular networks can also save battery life. To turn on Wi-Fi, go to Settings > Wi-Fi to access a Wi-Fi network.
Low Power Mode is another feature that can help extend battery life. Introduced with iOS 9, it reduces display brightness, optimizes device performance, and minimizes system animations.
To enable Low Power Mode, go to Settings > Battery, or let your iPhone prompt you to turn it on when your battery level goes down to 10%. This way, you can still use key functions like making and receiving phone calls, email, and messages, accessing the Internet, and more.
You can also optimize your battery life by turning off Location Services for the app. To do this, go to Settings > Privacy > Location Services, and see which apps have recently used location services.
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Extending Lifespan Tips
To extend the lifespan of your iPhone battery, it's essential to follow some best practices. Updating your version of iOS can slow down the aging process.
You can slow down the aging process by avoiding extreme temperatures when using your phone. This means keeping it away from direct sunlight, freezing temperatures, or any other extreme environment.
Dimming your screen or turning on Auto-Brightness can also help extend battery life. To dim your screen, open Control Center and drag the Brightness slider to the bottom.
Auto-Brightness adjusts your screen to lighting conditions automatically. To activate it, go to Settings > Accessibility, tap Display & Text Size, then turn on Auto-Brightness.
Using Wi-Fi instead of a cellular network can also preserve battery life. This is because Wi-Fi uses less power than a cellular network. To turn on Wi-Fi, go to Settings > Wi-Fi to access a Wi-Fi network.
Here are some quick tips to help you preserve battery life:
- Dim your screen or turn on Auto-Brightness
- Use Wi-Fi instead of a cellular network
Cost and Warranty
Replacing the battery on an iPhone can be a cost-effective option. Apple's replacement service costs £49 or $49, but you can get a DIY replacement pack from iFixit for £35 or $30, including postage.
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The cost of a battery replacement can vary, but it's generally not a huge savings over Apple's replacement. However, it's a good option if you want to keep the tools you need for future repairs.
Replacing the battery will void your iPhone's warranty, but if your battery is old enough to need replacing, you're likely already out of the 12-month warranty period.
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Cost?
If you're looking to replace your iPhone battery, the cost can vary depending on the service provider. Apple's replacement service costs £49 ($49), which is more than half what some people paid for their iPhone in the first place.
You can get a DIY replacement pack from iFixit for £35 (including postage), which is a significant saving over Apple's replacement. In the US, the DIY pack costs $30 with shipping, making it a more affordable option.
If you have AppleCare and your iPhone battery holds less than 80 percent of its original capacity, you're eligible for a battery replacement at no additional cost. This is a great benefit for those who have AppleCare coverage.
The cost of a battery replacement can add up, especially if you're sending it in through the mail. In this case, the total cost would be around £56 (about $75 or AU$105) with Apple's service.
Replacing Void Warranty
Replacing a battery can void your phone's warranty, but the impact is often minimal. If your battery is old enough to need replacing, you're likely already out of the 12-month warranty period.
Opening up an iPhone, for example, will void the warranty, but it's not the end of the world.
Prying the old battery out can be tricky and not always done safely.
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Safety and Precautions
Avoid exposing your device to extreme ambient temperatures, as this can cause permanent damage to the battery. Ideal comfort zones are between 62° to 72° F (16° to 22° C).
High ambient temperatures can damage the battery irreversibly, even when not charging. Storing a battery in a hot environment can also cause damage. Charging the device in high ambient temperatures can further damage it.
Be cautious when using your device in very cold environments, as this can cause a temporary decrease in battery life. The battery's performance will return to normal once the temperature returns to its normal operating range.
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Extreme ambient temperatures can damage your device, especially when it comes to battery capacity. Avoid exposing your device to temperatures higher than 95° F (35° C), as it can permanently damage your battery's ability to hold a charge.
Charging your device in high ambient temperatures can further damage it, and software may limit charging above 80% when the recommended battery temperatures are exceeded. This means your device won't charge fully, even if you plug it in for an extended period.
Storing a battery in a hot environment can also damage it irreversibly. This is a crucial fact to keep in mind, especially if you live in a hot climate or plan to store your device for an extended period.
The ideal comfort zone for your device is between 62° to 72° F (16° to 22° C), and it's essential to keep your device within this range to ensure optimal performance.
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Key Issues
If your phone is unexpectedly shutting down and you can't get through a day with a single charge, you likely have battery problems. Other signs include sluggish apps and lower-than-usual speaker volume.
Your iPhone will shut down early in the day if its battery capacity dips below 80%.
Health and Capacity
To check your iPhone battery health, head to Settings > Battery and tap Battery Health. You'll find information on maximum capacity, performance capability, and important battery messages.
The maximum capacity of your battery measures its capacity compared to when it was brand new. If the number you see under Maximum Capacity is more than 80%, you have a healthy battery.
If your battery's health is significantly degraded, you'll see a message indicating that an Apple Authorized Service Provider can replace the battery to restore full performance and capacity. This doesn't mean you have a busted battery, just one that holds less charge than it did when it was new.
Here are the possible messages you might see under Battery Health:
- Maximum Capacity: a percentage measuring your battery's capacity compared to when it was new
- Battery Health Degraded: a message indicating that your battery needs to be replaced
- Battery Health Unknown: a message indicating that your iPhone can't determine the health of the battery
Store It Half-Charged Long Term
If you plan to store your device for an extended period, it's essential to store it half-charged.
Store your device at 50% charge to avoid a deep discharge state, which can render the battery incapable of holding a charge.
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A fully discharged battery can lead to shorter battery life, so it's best to avoid that.
Store your device in a cool, moisture-free environment that's less than 90° F (32° C) to maintain its overall health.
If you plan to store your device for longer than six months, charge it to 50% every six months to keep it in good condition.
After removing your device from long-term storage, it may require 20 minutes of charging with the original adapter before you can use it.
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Health Check
Your iPhone battery's health is a crucial aspect of its overall performance. A healthy battery is essential for getting the most out of your device.
To check the health of your battery, go to Settings > Battery and tap Battery Health. This will give you information on maximum capacity, performance capability, and important battery messages.
The maximum capacity percentage measures your phone's battery capacity compared to when it was brand new. If the number is more than 80%, you have a healthy battery.
However, if your battery's health is significantly degraded, you'll see a message indicating that an Apple Authorized Service Provider can replace the battery to restore full performance and capacity.
If your phone can't determine the health of the battery, you'll see a message stating that an Apple Authorized Service Provider can service the battery.
Here are some key factors to keep in mind when it comes to battery health:
- Maximum capacity: If it's more than 80%, you have a healthy battery.
- Battery health degraded: Replace the battery to restore full performance and capacity.
- Battery health unknown: An Apple Authorized Service Provider can service the battery.
It's also essential to store your device in a way that maintains its battery health. If you plan to store your device for an extended period, charge it to around 50% and power it down to avoid additional battery use. Store it in a cool, moisture-free environment that's less than 90° F (32° C).
Repair and Replacement
Replacing your iPhone battery can be a cost-effective solution, especially if you're not due for a warranty replacement. Apple's replacement service costs £49 ($49) or £56 ($75) with mail-in service, but iFixit offers a DIY replacement pack for £35 ($30 in the US) with shipping costs.
If you decide to replace the battery yourself, be aware that opening up your iPhone will void the warranty, but if your battery is old enough, you're likely out of warranty anyway. iFixit's instructions are easy to follow, and you'll need to remove only seven internal screws to access the old battery.
You can check your battery's health by going to Settings > Battery > Battery Health & Charging. If your battery is ready for a swap, a notice will appear at the top. iFixit's kit comes with a third-party replacement battery and all the tools you need to replace the old one, except for a hair dryer to heat up and remove the glue.
Replacement Cost
Replacing your iPhone battery can be a cost-effective option, especially if you're on a budget. Apple's replacement service costs £49 ($49), which might be more than you're willing to spend, especially if you're like me and initially saved money by buying your phone cheaply.
You can get a DIY replacement pack from iFixit for £35, including postage to your home. This is a significant saving, especially if you're in the US where the pack costs $30 with shipping.
The cost of replacement can add up, but it's worth considering the savings. For example, if you're in the UK and buy the DIY pack, you'll save £14 compared to Apple's replacement service.
Replacing your iPhone battery won't void your warranty if the battery is old enough to need replacing. Odds are, you're already out of the 12-month warranty period, so you can breathe a sigh of relief.
The DIY approach also means you'll have the tools you need for future replacements, saving you money in the long run.
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Replacing Old Devices
Replacing your old iPhone battery can be a cost-effective way to breathe new life into your device. You can check the current health of your battery by going to Settings > Battery > Battery Health & Charging.

Replacing the battery yourself is possible, but it comes with some risks, such as breaking your phone. iFixit's instructions can be a good resource to follow, and it's not as difficult as you might think, with only seven internal screws to remove.
If you're not comfortable doing it yourself, you can hire someone like Apple to do it for you. However, if you do decide to replace the battery yourself, it's essential to follow the instructions carefully, especially when it comes to reassembling your phone.
The cost of replacing your iPhone battery can vary depending on the model and other factors. For example, the cost of replacing the battery in an iPhone 12 with iOS 16 is not specified in the article.
If you do decide to replace your old iPhone battery, make sure to clean off any remaining adhesive or glue to ensure a proper seal. This can be a bit tricky, but it's an essential step in the process.
Here are some options to consider when replacing your old iPhone battery:
- Replace the battery yourself using guides like iFixit's instructions.
- Hire someone like Apple to do it for you.
- Consider upgrading to a new iPhone instead.
It's also worth noting that the iPhone 6, as mentioned in an example, has a relatively straightforward battery replacement process, with only seven internal screws to remove.
Contents of the iFixit Fix Kit
The iFixit fix kit is a great resource for repairing your phone. It comes with a third-party replacement battery that is not from Apple.
If you're looking to replace your phone's battery, the iFixit kit has got you covered. The replacement battery is specifically designed to fit your phone.
The kit also includes all the necessary tools to open your phone and remove the old battery. This makes the process much easier and less intimidating.
One thing to note is that the kit does not include the tools needed to heat up and remove the glue.
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Important Information
If you're not careful, your Apple phone battery can quickly drain, especially if you're constantly using power-hungry apps.
Apple phone batteries typically last around 500 to 1000 charge cycles, which is equivalent to about 2 to 3 years of normal use.
To maximize battery life, it's essential to keep your phone away from extreme temperatures, as temperatures above 95°F (35°C) or below 32°F (0°C) can reduce battery performance.
The Apple iPhone 13, for instance, has a battery life of up to 12 hours of internet use, making it perfect for long days on the go.
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