Fast charging is a technology that increases the current sent to the battery, thereby charging it faster. In reality, a fast charging USB charger supports output modes: 5V (Default), 9V (On demand), and 12V (On demand).
Does fast charging actually charge regular phones?
Can phones without fast charging support use fast chargers?
Any USB device connected to the charger will receive 5V and can draw up to 1.8A, so the output remains within standard specifications. Meanwhile, to receive 9V, the device needs to connect to the charger and request a switch to 9V (fast charging support). If the device cannot support fast charging, it will still receive power normally.
- List of smartphones supporting fast charging, Quick Charge
You can absolutely use fast chargers for phones or other devices without any risk of damage. The fast charging mode (higher power output) is only activated if the phone requests it from the charger. Without this request, the charger operates like any other USB power source.
Fast charging 2.0 or 3.0 is a technology licensed by Qualcomm, with many third-party companies manufacturing accessories supporting this technology. Qualcomm claims that fast charging can be up to 75% faster than regular chargers.
Fast charging 3.0 was introduced in 2015 and primarily focuses on energy efficiency, charging at the same speed as 2.0 but generating less heat during the process. It charges twice as fast as 1.0 and is 38% more efficient than 2.0.
A fast charger 2.0 can support 5V, 9V, or 12V and up to 3A, 60W; Fast charger 1.0 can support 5V and 2A (10W). Many chargers on the market support 5V 1A, and standard computer USB ports provide a minimum output of 5V, 0.5A.
The question of whether phones without fast charging support can use fast chargers has been answered by Mytour above. Now, any doubts you have encountered while using your phone have been cleared, right? Hopefully, the insights in this article will provide you with the most necessary and useful information.
Besides, users can also experience the best phone fast charging applications such as Fast Charging, Battery Doctor...