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A USB charger that supports QC3.0. Quick Charge (QC) is a proprietary battery charging protocol developed by Qualcomm, used for managing power delivered over USB, mainly by communicating to the power supply and negotiating a voltage.
However, even using the current EPP standard, it typically takes 2.5–5 hours to charge a typical smartphone, with a typical 10 Watt-hour battery, which would imply that if the charge rate was 10 Watts, it would take only one hour. Therefore 2.5 hours charge time means the average charging rate was only 10/2.5 = 4 watts.
When a device detects it is plugged into a charger with a compatible faster-charging standard, the device pulls more current or the device tells the charger to increase the voltage or both to increase power (the details vary between standards). [104] Such standards include: [104] [105] Anker PowerIQ; Google fast charging; Huawei SuperCharge ...
The MagSafe Duo charger can be folded when not in use. [20] [21] The charger came with a Lightning–to–USB-C cable, and Apple recommends their newer 30 W USB-C power adapter (released in 2018), and notes their older 29 W adapter is incompatible and can only charge one device at a time. [22]
MagSafe is a series of proprietary magnetically attached power connectors developed by Apple Inc. for Mac laptops. MagSafe was introduced on 10 January 2006, in conjunction with the MacBook Pro, the first Intel-based Mac laptop, at the Macworld Expo.
It was the last Mac to use a PATA storage drive, and the only one with an Intel CPU. To conserve on space, it uses the 1.8 inch drive used in the iPod Classic instead of the typical 2.5-inch drive. It was Apple's first notebook since the PowerBook 2400c without a built-in removable media drive. [ 11 ]
According to Apple, the Mac Studio with an M1 Max is 2.5 times faster than the company's fastest Intel-powered 27-inch iMac and 50% faster than the Mac Pro with a 16-core Intel Xeon processor.
The first specification of this time reached a maximum of 125 A with up to 500 V. The typical Chademo charging stations allowing for 50 kW direct current became the basis for the term fast charging. When the Nissan Leaf came around in 2010, having a range of up to 160 km (100 miles), the concept of an actual fast charging networks was developed.