Almost all major manufacturers of smartphones and their chips have their own fast charging standard. Class A chargers with a micro-USB cable can provide up to 24 W of power, and with USB Type-C - up to 36 W. Meanwhile, Class B devices reach 60 W and more.
In contrast to classic battery chargers, most fast charging power units are also "smart", they "communicate with smart devices through a special protocol: the smartphone sends information about the battery's condition to the charger, on the basis of which the incoming power is regulated by changing the voltage and current strength. The power supply provides maximum power when charging an almost empty battery - therefore it is accepted to evaluate the effectiveness of fast charging based on the time it takes to charge the battery to 50%.
Currently, there is no common standard for fast charging, so there are several fast charging technologies that (not all) must be supported not only by the device, but also by the battery.
Summarytable offast charging technologies :
Quick Charge 2.0
Quick Charge 3.0
Adaptive Fast Charging
VOOC Flash Charging
USB Implementers Forum
USB Power Delivery
Fast charging standards Quick Charge, Super Charge, Super mCharge, TurboPower, Pump Express, VOOC Flash Charging, Dash Charge USB Type-C
The charger has a basic mode that is suitable for all devices. It limits the voltage to 5V and the current to 3.2A (specified in the technical specification). So don't worry about damaging a device that doesn't support it by using a powerful charger.
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