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Some models of the iPhone support wireless charging. [32] A distinction to Android devices is that connecting an iPhone to a charger while powered off causes it to power on rather than showing a battery indicator without booting. [33] [34] Apple runs tests on preproduction units to determine battery life.
Users reported that the iPhone XS and XS Max would sometimes fail to charge by Lightning cable if it had been off for a while, and would only begin to charge if the screen was turned on. [49] This was caused by a software bug with Apple's "Disable USB accessories when locked" setting, a feature intended to prevent unknown devices from accessing ...
Battery-powered equipment connected to mains electricity can be kept fully charged although switched on; for example, a mobile telephone can be ready to receive calls without depleting its battery charge. It enables devices to either turn on or off into a standby state automatically without human intervention (for example, a timer or Wake-on-LAN).
A U.K. man who was charging his iPhone while taking a bath accidentally electrocuted himself.
It contains a 11.13 W⋅h, 1,460 mA⋅h battery that on its own can charge an iPhone at up to 7.5 W. [27] While the pack is being charged via Lightning it can charge an iPhone at up to 15 W. The pack itself can be charged either directly through its Lightning port or wirelessly from an iPhone that is being charged via Lightning.
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Inductive charging is also used in vehicles, power tools, electric toothbrushes, and medical devices. The portable equipment can be placed near a charging station or inductive pad without needing to be precisely aligned or make electrical contact with a dock or plug. Inductive charging is named so because it transfers energy through inductive ...
The controversy first emerged in late-2016, when it was reported that since a recent iOS update, some iPhone handsets had begun to experience unexpected shutdowns when their battery capacity reached 30%, caused by drops in the battery's terminal voltage below a threshold of around three volts required for operation of the device.