Fast charging continues to be played up a key differentiator especially for flagship Android phone products. Phones nowadays can take advantage of a variety of fast charging technologies which run the gamut of open standards vs proprietary schemes. USB Power Delivery allows phones to quickly charge over USB Type-C connectors using any phone SOC chipset. Those phones that are based on Qualcomm Snapdragon can take advantage of Qualcomm's Quick Charge technology.
For major giants like Huawei, their market share is large enough to justify creating their own proprietary charging technology.Huawei's SuperCharge focuses on delivering fast charging by providing higher current levels at lower voltages. The Huawei SuperCharger provides 22.5 watts (4.5 volts @ 5 amps) by using standard USB cable connectors.
Huawei claims that unlike other charging technologies that achieve fast charging by providing high voltage and standard currents, the more efficient charging method is to keep voltage closer to the battery cell's voltage.
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