High-tech: Smartphone fast charging rules

High-tech:  Smartphone fast charging rules

 High-tech:  Smartphone fast charging rules

High-tech:Smartphone: MOSCOW, September 26 - RIA Novosti, Kirill Karimov. Modern smartphones are equipped with high-capacity lithium-ion batteries with Quick Charge, which provide powerful charging in minutes. However, this will shorten the battery life. How to use this new technology correctly so that the device will last longer - in the material of RIA Novosti.

A bit of theory

For a long time, mobile phone manufacturers have produced chargers (chargers) and connectors for them, guided by their own needs. There was no single standard, no compatibility. By the end of the 2000s, the USB Battery Charging standard was developed, which was the first attempt to create a universal charger for gadgets with high tech increased energy consumption. The micro USB connector was taken as a basis, it can still be found in many devices. Nowadays, USB Type-C is being used more and more often. High tec the next step is the USB Power Delivery (PD) standard. Already in the first revision, which appeared in 2012, the developers achieved a throughput of one hundred watts. However, commercial versions of the devices gave an order of magnitude less power, worked with a voltage of five volts and a current of two amperes. At the same time, high-tech manufacturers of gadget hardware were working on the fast charging standard. The pioneer was California-based Qualcomm with Quick Charge technology integrated into proprietary chipsets. The latest version 5 high tech, introduced in July, boasts fantastic results - charging the 4500mAh battery in just 15 minutes. Commercial samples are not able to do this yet. Smartphone manufacturers have also created many fast charging standards, which are not all compatible with each other. And this is the problem - a complete power supply forgotten at home will deprive you of this useful function, but there are exceptions. For example, Apple's fast charging technology is based on the PD protocol, and the latest versions of Quick Charge are fully compatible with Apple products. Today, some smartphones can replenish the battery capacity right before our eyes. The Chinese corporation BBK has especially succeeded in this, having created a SuperVOOC 2.0 power supply with a power of 65 watts. A compatible smartphone is completely infected in 35 minutes. But this is a proprietary technology - this speed can only be obtained And what about in practice? Fast charging was conceived as the safest possible for the battery and smartphone, and therefore the user. But in practice, everything turned out to be not so simple.

Whatever the name of the technology, the principle of operation boils down to increasing the current and voltage, which give the very watts that make gadget manufacturers proud. But if the safe threshold is exceeded, the battery could explode. Therefore, any charging has "brains" - a microcircuit-controller that determines how much current voltage and at what moment the battery should receive. The controller is integrated into the smartphone's motherboard. "Power without control will inevitably lead to overheating, so modern chargers are not only powerful, but also" smart ": they interact with a smartphone according to a special protocol, constantly monitoring the state, heating and charge level of the battery, and based on these indicators, they adjust the output power by changing the voltage and amperage, "says Alexey Gribovsky, general manager of the federal chain of stores of electronics and household appliances" Positronika. " ... But the user often manages to bypass all the protective barriers and the smartest smartphone. The human factor in the event of problems with fast charging is the main one. "One of the main reasons for the accelerated battery degradation is when the owner of the device when using fast charging, leaves the phone in a case or even puts it under the pillow for the night, which causes overheating and brings the battery failure closer," says Vadim Bolshakov, Head of Development at Atol. - And the understanding that you can fully charge the phone in an hour contributes to its more active users and, as a result, more frequent charging, which again negatively affects the battery. the likelihood of buying a new gadget. " with a complete charger and a special wire.

Rules for charging a smartphone

The high heat inherent in fast charging still shortens the already finite life of a lithium-ion battery. And if earlier it degraded in 1.5-2 years, then with regular fast charging, the capacity can fall much earlier. “Fast charging means shorter cycles and more heat, which negatively affects the battery,” says Dmitry Ryabinin, head of Hi-Tech Mail.ru. “According to research, 40-watt charging reduces battery capacity by 30 percent over the same during which charging 15 watts would reduce capacity by ten percent. " To somehow compensate for the inevitable losses, the developers adhere to a cunning algorithm. The process is divided into two stages. On the first, the smartphone receives maximum power in the minimum time. For example, one of Oppo's models will charge 40 percent in ten minutes. But the last 30-40 percent in any fast charges are the longest, they take even longer. But you can also independently extend the life of a smartphone battery by adhering to very simple rules. For example, do not allow a discharge below ten percent - lithium-ion and lithium-polymer batteries do not tolerate deep discharge, because of it, the battery life decreases. The second rule is even more important than the first, especially for fast charging - use only the original charger or high-quality analogs. You can avoid many problems with the battery, if you do not stick your smartphone into an incomprehensible power supply, bought for 200 rubles in an underground passage. As the battery does not like to discharge to "zero", so it will not thank you for a long connection to the network by one hundred percent. In general, it is believed that to achieve the maximum resource, it is worth charging the battery no higher than 80 percent. Lithium-ion batteries cannot withstand extreme temperatures. No wonder they sit down faster during a conversation in winter. Problems can also arise due to the impatience of the user. For example, when he launches a game on a smartphone that is on fast charge. At such a moment, the device experiences a double load.

However, even if you adhere to all the rules, this will not insure against the rejection of the battery or charger. Just remember the scandal with the Samsung Galaxy Note 7, when there were a lot of fires, smoke, and overheating of the phone, because of which the Koreans had to hastily remove the device from production in 2016. And this summer and fall, Google Pixel 3 and 4 users started complaining about swollen batteries, which rips off the back panel.