With iPhone 14 models and earlier, go to Settings > Battery > Battery Health & Charging and turn off Optimized Battery Charging. If you want to change your charging option: Optimized Battery Charging is on by default when you set up your iPhone. If you need to have your iPhone fully charged sooner, touch and hold the notification and then tap Charge Now. When Optimized Battery Charging is active, a notification on the Lock Screen says when your iPhone will be fully charged. The algorithm aims to ensure that your iPhone is still fully charged when unplugged. Your iPhone uses on-device machine learning to learn your daily charging routine so that Optimized Battery Charging activates only when your iPhone predicts it will be connected to a charger for an extended period of time. When the feature is enabled, your iPhone will delay charging past 80% in certain situations. With iOS 13 and later, Optimized Battery Charging is designed to reduce the wear on your battery and improve its lifespan by reducing the time your iPhone spends fully charged. Learn more about iPhone battery and performance and how to maximize battery performance and lifespan. As lithium-ion batteries chemically age, the amount of charge they can hold diminishes, resulting in reduced battery life and reduced peak performance. All rechargeable batteries are consumable components that become less effective as they chemically age. A battery's chemical age results from a complex combination of several factors, including temperature history and charging pattern. With iOS 13 and later, your iPhone learns from your daily charging habits to improve the lifespan of your battery.Ī battery’s lifespan is related to its chemical age, which is more than just the length of time since the battery was assembled. Even a simple battery replacement requires total disassembly and risks damage.About Optimized Battery Charging on your iPhone The new remote, on the other hand, was very difficult to repair. Like the previous model, the second-generation Apple TV scored an eight out of 10 for repairability. IFixit discovered that the Siri Remote uses a "tiny" 1.52 Wh battery and it is not glued in place, which should make replacement somewhat easier. iFixit noted that the entire disassembly of the new Siri Remote was made difficult by "super tight" tolerances. Once these were taken out, the battery and circuitry could be slid out of the bottom of the remote. The Clickpad and buttons had to be removed with brute force, revealing more screws to remove. To get inside, two screws have to be removed from a panel on the bottom of the remote where the Lighting port is located, but iFixit found that it is not possible to access anything meaningful here without removing even more screws elsewhere. In the redesigned Siri Remote, the battery is located in the bottom half, with circuitry taking up the top half. iFixit noted the easy teardown of the Apple TV since each of its components are simply layered in place and easy to remove with a screwdriver. The large fan inside the Apple TV is not connected with a cable to the logic board, using four metal contact pins instead, making disassembly even easier. As with previous Apple TV models, the entire plastic shell of the device is transparent to IR light, allowing the Siri Remote to be used from any angle.
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