Quick Charge

What is Quick Charge And Why Use It?

The use of smartphones and battery-powered technology devices has increased considerably in recent years. We use more and more devices with batteries and also following tips to increase the battery life sooner or later we will have to connect it to a power outlet to allow it to recharge when the battery level is low. Check this https://surveysbuzz.com for more details. Whether it’s the battery of an Android or an iPhone, it doesn’t matter, we increasingly need to quickly recharge the battery of our Smartphone. This is because we always have a lot to do with our smartphones, our tablets, s or our notebook.

Quick Charge

The Quick Charge technology comes to our aid by allowing optimized management of electricity in USB charging devices, consequently reducing the charging time of the device. This will allow us to quickly recharge our iPhone or Smartphone.

What is Quick Charge

The Quick Charge, or fast charge, is adopted in those chargers and devices capable of charging faster than the classic charging standard (Max 5 Watt).

With traditional charging, the smartphone is usually charged at 2.5 watts (5V x 0.5A) and will take a certain amount of time to charge depending on the model and battery capacity.

While there are several technologies that allow for these high charging speeds, there is still no standard terminology on this subject, and so a lot of confusion has been created over time. In fact, in addition to this lack of compliance, it is good to know that many manufacturers boast high charging speeds for their products but that the charging provided is actually the standard 5W one.

How Quick Charge technology works

The basic elements that play in the charging phase are Amps, Volts, and Watts. Ampere (or current) is the amount of electricity that flows from the charger to your smartphone or another connected device. The Volt is the strength of the current. Watts, on the other hand, is the result of multiplying between Amps and Volts.

To understand ourselves better, we can imagine a tube. The amperage (or current) is the diameter of the pipe, the voltage is the water pressure and the Watts are the amount of water that comes out of the pipe.

Quick Charge technology was first developed by Qualcomm for its Snapdragon processors. This technology is able to offer more energy in less time, which results in a decrease in charging times.

Thanks to the fast charging system these times are considerably lowered. Because the smartphone may require more power (in the initial phase) to recharge, thus reducing recharging times.

The evolution of Quick Charge technology

Fast charging has evolved over time. It developed at the same time as the devices, in fact, there are several versions:

Quick Charge 1.0

Released in 2013, it is capable of exceeding 10 watts of previous recharges bringing the maximum current to 2 Amps. In this way, the charging times are significantly shortened.

Quick Charge 2.0

Introduced in 2015 it brings the intensity of the current to a maximum of 3 Amps, while the charging voltage varies at 5 Volts, 9 Volts, and 12 Volts. Bringing the maximum power to 18 Watts.

Quick Charge 3.0

Quick Charge 3.0

Released in 2016, it offers a wider range of charging voltages. It ranges from 3.6 Volts up to 20 Volts with 0.2 Volts per increment. The voltages are decided by the charging circuits based on the residual charge or the more the phone is discharged the more power will be given for charging. In fact, thanks to the Intelligent Negotiation for Optimum Voltage system (abbreviated as INOV) it is possible to determine the optimal power level.

Quick Charge 4 and 4+

Born in 2017, the maximum power of 100W has been released both in input and output with the arrival of USB Type C, making the technology compatible with the new protocol called USB PD (Power Delivery).


Maybe all these numbers have not made you fully understand the enormous evolution of this system, but to understand better, with Quick Charge 4 and 4+ we will be able to charge a phone from 0 to 50% in just 15 minutes.

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