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When did wired reverse-charge technology appear in smartphone?

2023-11-14 307 0

Wired reverse-charge


Reverse wired charging technology, also known as or USB On-The-Go (OTG), has been available in smartphones for several years. The exact introduction of this feature can vary depending on the specific smartphone model and manufacturer. However, USB OTG became more prominent and widely supported in smartphones around 2011, especially in the rugged smartphone industry (The phone with water-, drop-, shock-, and dust-resistant, which is able to have survived where other devices could not.).

USB OTG allows a smartphone to act as a host device, enabling it to connect and provide power to other USB devices, such as tablets, smartphones, TWS earbuds charging case, flash drives, or even keyboards and mice. This feature allows users to charge other gadgets using a wired connection, typically using a USB OTG adapter or cable.

Since its introduction, USB OTG has become a standard feature in many smartphones, particularly in the Android ecosystem, offering users the convenience of charging other devices or transferring data directly from their smartphones to USB peripherals.

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