Recently charging of smartphones is very hot topic 😉 Initially, the Samsung Galaxy Note 7 dealt with the fire was during charging. It turns out that an artificial limitation of the battery capacity greatly minimizes the risk of self-ignition. But we want our phone to operate as long as possible a single charge, and once it is discharged, we want to charge our mobile in very short time. With the new version of the Quick Charge solution from Qualcomm, this process will be more efficient.
The power consumption level of our phones is constantly increasing. There’s no wonder, because the mobile processors are clocked at higher frequency than not one computer. Therefore, manufacturers of smartphones have to use batteries with higher capacities. It is also clear that if the battery is bigger, then longer time is required to charge it. Statistics show that users usually charge their smartphones during the night. That’s what I do, but sometimes it happens that I forget about it and in the morning I got discharged mobile. Fortunately, thanks to the doze mode in Android Marshmallow, alarm clock still works, but the battery indicator shows often in such situations 5%. Sometimes I play a lot in the new mobile game, and I need to recharge the battery during the day. Fortunately, this is not so onerous thanks to fast charging technologies.
Qualcomm Quick Charge 4.0 will come to our phones with Snapdragon 830 processor.
The first handsets with the new Qualcomm chipset will appear in the first quarter of next year. This will include the Samsung Galaxy S8, but it is not known yet whether the version sold in India will be equipped with the Snapdragon 830 or the Exynos 8895 chipset. Quick Charge 4.0 will be able to charge new phones with the power up to 28 W. For comparison, the previous solution from Qualcomm, i.e. Quick Charge 3.0, provides to the device up to 18 W of power. In contrast, competitive methods, namely Huawei’s Super Charge and VOOC from Oppo provide 22.5 W and 20 W, respectively. Easy, no one here is mad. The USB Type C interface is able to carry up to 100 W, so everything is done in accordance with all safety rules.
The new release of the Quick Charge will less heat up our phones.
According to unofficial reports from an anonymous manufacturer of mobile accessories, the specification of Quick Charge 4.0 technology allows for only two charging voltage levels. Qualcomm has decided that our smart phones will be charged at a voltage of 5 V with a current of 4.7 A to 5.6 A or 9 V with 3 A current. Fortunately, there is no mention about the charging voltage levels of 12 V and 20 V, which are used in the Quick Charge 3.0. Thanks to this approach, the charging process will generate less heat. The problem is that lithium-ion batteries are not able to accept such high voltages and manufacturers must install voltage down-converters. Unfortunately, it provides a fairly large amount of heat, which can be dangerous and lead to self-ignition. Such situations will be prevented by a solution called INOV (Intelligent Negotiation for Optimum Voltage), which will select the best charging voltage level for the battery.