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2. Qi (standard) - Wikipedia

   en.wikipedia.org/wiki/Qi_(standard)

   Qi (/ tʃ iː / CHEE) is an open standard for inductive charging developed by the Wireless Power Consortium.It allows compatible devices, such as smartphones, to receive power when placed on a Qi charger, which can be effective over distances up to 4 cm (1.6 in). [1]

3. Quick Charge - Wikipedia

   en.wikipedia.org/wiki/Quick_Charge

   Quick Charge 2.0 introduced an optional feature called Dual Charge (initially called Parallel Charging), [4] using two PMICs to split the power into 2 streams to reduce phone temperature. [5] Quick Charge 3.0 introduced INOV (Intelligent Negotiation for Optimal Voltage), Battery Saver Technologies, HVDCP+, and optional Dual Charge+. INOV is an ...

4. Speed of electricity - Wikipedia

   en.wikipedia.org/wiki/Speed_of_electricity

   The velocity of electromagnetic waves in a low-loss dielectric is given by [1]: 346 = =.. where = speed of light in vacuum. = the permeability of free space = 4π x 10 −7 H/m.

5. Universal charger - Wikipedia

   en.wikipedia.org/wiki/Universal_charger

   Universal charger or common charger refers to various projects to standardize the connectors of power supplies, particularly for battery-powered devices. Since the publication of the USB Power Delivery standard in 2012, and the USB-C connector in 2014, USB-C has become a widespread standard for charging mobile phones.

6. Xiaomi 13 - Wikipedia

   en.wikipedia.org/wiki/Xiaomi_13

   The Xiaomi 13 comes with a 4,500 mAh battery, supporting 67W wired fast charging, which can fully charge the device in around 38 minutes. The phone also supports 50W wireless charging, allowing for quick top-ups without the need for cables, and 10W reverse wireless charging to charge other devices.

7. Redmi Pad SE - Wikipedia

   en.wikipedia.org/wiki/Redmi_Pad_SE

   It is powered by a Snapdragon 680 processor and comes in configurations with 4GB, 6GB, or 8GB of RAM and 128GB of internal storage, expandable up to 1TB. The device includes an 8000mAh battery supporting 18W fast charging (comes with a 10W charger) and runs on Android 13 with Xiaomi's MIUI Pad 14 interface. [3] [4]