Powerbank fast charge is one of the minimum requirements, which has become essential for most users when choosing a new phone.
In an increasingly hectic world where speed is a priority, Powerbank fast charge has become a fundamental characteristic, especially taking into account that the smartphone can be used in a thousand ways for everyday tasks.
In the past, the goal was to create small size but high capacity external batteries , a real headache for many manufacturers as the final size of the phone was reflected. However, nowadays improving battery charging time has become the definitive solution.
Although there are several power bank with fast charge technologies, we will focus on Qualcomm Quick Charge , installed on the majority of Android phones, chargers and external batteries on the market.
Finally, we will unveil our selection of the best power bank fast charge available on Amazon.
What is power bank with fast charge?
Quick charge is a fast charging technology created by the American company Qualcomm , which aims to considerably reduce the time required to fully recharge a phone battery.
This new technology was introduced from the Qualcomm Snapdragon 600 processor and acts on the voltage and current of the battery charger. In this way, it increases the absorption capacity of the battery (maximum current supplied is 2A with a voltage of 5V).
How does powerbank fast charge work?
The principle of operation of Quick Charge is simple: to optimize the efficiency of the charging process by exploiting the maximum limit of the power which can be absorbed by the battery without affecting the internal circuits in a negative way.
This is achieved by increasing the intensity of the input current within the resistance limit of the electronic components.
Before explaining the differences between the fast charging versions created by Qualcomm, we will try to briefly understand how traditional charging works:
during conventional recharging, that is to say the way in which a telephone has been recharged up to now, it recharges up to a maximum of 10W , the result of multiplying an input voltage of 5V by an input current of 2A.
Quick Charge 1.0
With the first version of Quick Charge , we managed to shorten the charging time by reducing the intensity of the current and increasing the input voltage. In summary, we obtained 15W product of 9V at 1.67A. With Quick Charge 1.0 we have managed to reduce the time of a full charge by 20%.
Quick Charge 2.0
In 2014, version 2.0 arrived providing a maximum power of 36W. The current increased to 3A and the voltage was 5, 9 or 12V. This new version has improved by 30% that of Quick Charge 1.0.
Quick Charge 3.0
With the 3 rd version of Qualcomm’s technology, the INOV (Innovative Negotiation for Optimum Voltage) system is added. In practice, it is an algorithm capable of maximizing power as a function of the load level . In this case, with QC 3.0, the voltage adapts dynamically with values oscillating between 3.6 and 20V with slight increases of 200mV.
In this way, power is optimized, efficiency is improved by obtaining a charging speed 27% faster and energy losses are reduced by up to 45% compared to Quick Charge 2.0. In addition, thanks to Quick Charge 3.0, the user will be able to charge their phone from 0 to 71% in just 30 minutes.
Quick Charge 4.0
This new version of Quick Charge will be released with the new generation of Snapdragon 835 processors. With it, Qualcomm will provide 20% faster and 30% more efficient charging compared to Quick Charge 3.0 in addition to reducing the charging temperature by 5 ° C. .
Other expected characteristics:
- 5 minutes of charging equals 5 hours of use
- Possibility to charge 50% of the battery in 15 minutes
- Compatible with USB Power Delivery
Disadvantages of fast charging
It is true that fast charging quickly solves the problem of the charging time of our phones but however, everything is not perfect: the more power, the more heat. We know that heat is one of the worst enemies of batteries because it causes a decrease in its ability to hold a charge over time.
We recommend using this technology in emergency situations or / and for lack of time, but do not get used to automatically recharging the phone with fast charging.
What devices are compatible with Quick Charge?
Qualcomm has published a list of all phones and accessories certified for Quick Charge technology on all of its versions. You can download the official list in PDF format here .
Best power bank fast charge – 2021 🚩
If you have a Qualcomm fast charging phone, you will need a USB charger or an external battery compatible with Quick Charge 2.0 or 3.0 to take advantage of this technology.
Before viewing our selection of external batteries with Quick Charge, pay attention to the following tips:
Although you have a phone with QC2.0, we advise you to choose a model with the latest version available, in this case, QC3.0.
This is because the latest version of Quick Charge will always be compatible with previous versions , so if your phone supports QC2.0 and you use an external battery with QC3.0, the external battery will use voltages for a device with QC2.0.
On the other hand, if you buy an external battery with QC2.0 and then change your phone or charge another device with QC3.0, you will not be able to benefit from the Powerbank fast charge since it will be limited to a charge. with QC2.0.
In addition to providing power bank fast charging output USB ports, many external batteries also incorporate fast charging into the input port to charge the own device faster.
This feature could be very interesting especially if you buy a large capacity external battery. Can you imagine being able to recharge a 20,000 mAh external battery in just 4 hours?
Of course, you will need to use a charger compatible with Quick Charge to be able to charge the external battery this way.