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Can I Charge my iPhone if the battery is not fully charged?
Can I Fast Charge my iPhone 12?
Does iPhone use optimized battery charging?
How to optimize battery charging on iPhone 15?
Should I unplug my iPhone after it's fully charged?
Do you need a portable charger for iPhone 12?
Dec 24, 2023 · From brand-new accessories designed just for the iPhone 12, to simple instructions on how to maximize battery life and speed up charging time – we will cover everything you need in one convenient guide.
- Overview
- About your battery's lifespan
- How charging affects your battery
- How temperature affects your battery
- How Wi-Fi and Bluetooth affect your battery
Learn about charging the battery in your iPhone and how you can prolong your battery's lifespan.
A battery’s lifespan is related to its chemical age, which is more than just the length of time since the battery was assembled. A battery’s chemical age results from a complex combination of several factors, including temperature history and charging pattern. All rechargeable batteries are consumable components that become less effective as they chemically age. As lithium-ion batteries chemically age, the amount of charge they can hold diminishes, resulting in reduced battery life and reduced peak performance.
Learn more about iPhone battery and performance
For most customers, the battery in your iPhone should last the whole day. You can charge your iPhone every night even if the battery isn't fully depleted.
iPhone automatically stops charging when the battery is fully charged, so it's safe to keep your iPhone connected to a charger overnight. Charging resumes automatically if your battery level drops below 95 percent.
When possible, unplug your iPhone after it has fully charged. By default, your iPhone uses Optimized Battery Charging. To improve your battery's lifespan, Optimized Battery Charging reduces the time that your iPhone spends fully charged. It fully charges your iPhone just in time for you to use it.
A battery warms up as it charges, which can reduce its lifespan. To reduce the effect of heat and prevent overheating, iPhone gradually reduces the charging current as the battery approaches full charge.
iPhone is designed to perform well in a wide range of ambient temperatures, with 62° to 72° F (16° to 22° C) being the ideal comfort zone.
Avoid using or charging your device in ambient temperatures higher than 95° F (35° C), which can permanently reduce battery lifespan.
When using your device in a very cold environment, you might notice a decrease in battery life. This condition is temporary; when the battery’s temperature returns to its normal operating range, its performance will return to normal.
Software might limit charging above 80 percent when the recommended battery temperatures are exceeded.
Wi-Fi and Bluetooth are designed to draw minimal power from the battery when they aren't connected to a network or accessory. For the best experience on your iPhone, keep Wi-Fi and Bluetooth turned on.
Some features might not work if you turn off Wi-Fi or Bluetooth
Learn how to check our your battery health and other information about your battery
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For most customers, the battery in your iPhone should last the whole day. You can charge your iPhone every night even if the battery isn’t fully depleted. iPhone automatically stops charging when the battery is fully charged, so it’s safe to keep your iPhone connected to a charger overnight.
Go to Settings > Battery > Battery Health & Charging. Do one of the following: On iPhone 14 and earlier models: Turn on Optimized Battery Charging. On iPhone 15 models: Tap Charging Optimization, then choose Optimized Battery Charging.
Oct 24, 2022 · How to charge your iPhone and retain 100% battery capacity for two years. You wouldn’t think you’d need anyone to tell you how to charge your iPhone, but one TikTok user makes a good case for...
Sep 8, 2024 · There will be performance differences, with USB-C faster than USB-A to charge, but they will all work (except that a USB-A “cube” doesn’t have sufficient power to charge an iPad). For an iPhone 12 or later you can fast charge using a 20 watt or higher power USB-C that meets the PD spec.
Oct 25, 2020 · Let's simplify that: More mAh means more battery. Naturally, a portable charger with a big mAh measurement will last longer and likely even come with multiple charging ports.
