Quick charge 3.0 does not work. Enable or disable fast charging on Android devices

There are no compact batteries with high capacity yet. Similar devices are at the development stage. Of course there are some prototypes, but they are not used. Smartphone manufacturers took a different route - they came up with a way to charge the phone faster, and much faster. To do this, it must support fast charging technology (it can be called differently) and be equipped with a special charger that can provide high strength current

Note that cheap phones in price category up to 10 thousand rubles do not have such a function. Fast charging is available in flagships and more or less expensive smartphones, which cannot be classified as either flagships or state employees. However, hardware is improving and becoming cheaper, so if during 2018 state employees begin to produce fast-charging technologies, it will be logical.

How does fast charging work?

To refill the battery faster, you need charger high power. In standard models, the voltage does not exceed 5 V, and the current does not exceed 2-2.5 A (most often it is 1 Ampere). In special adapters, the current can reach 5 A and the voltage 20 V. However, this is not the main difference. Classic “slow” chargers simply provide a stable consistent current, while “smart” and fast devices can “communicate” with a smartphone using a special protocol.

For example, popular technology Quick Charge 3.0 from the famous processor manufacturer Qualcomm is based on “communication” between the smartphone and the charger. The phone sends information to the charger about the state of the battery, and based on this information, the power supply can adjust the power output by changing the current or voltage. This voltage determination system is called Intelligent Negotiation for Optimum Voltage or INOV.

The most high power issued by the adapter when the battery is empty. That is why manufacturers most often indicate the operating efficiency of their chargers based on the time it takes to fill the battery to 50%. For example, with a completely empty battery Quick Charge 3.0 (the name of one of the technologies) creates an initial voltage of 20 V, and then as the battery capacity increases, the voltage can drop down to 3.2 V.

The fast charging function is only available if the processor supports this technology and with a special charger, which is usually supplied by the manufacturer itself. If it breaks, you can buy a new one, but it must be certified. And although there are few fakes on the market, you should never use an untested accessory, as charging the battery in the wrong mode can not only destroy your smartphone, but also cause a fire.

Technologies

Every self-respecting chipset (processor) manufacturer has created its own unique fast charging technology. We will indicate the most common of them.

Quick Charge

Qualcomm is a leading manufacturer of chipsets for smartphones. Xiaomi, some Samsung, Asus, Google Pixel and other manufacturers purchase chips from this brand and successfully use them in manufactured phones. It was Qualcomm that was the first to create fast charging technology. On at the moment The latest processors use Quick Charge 3.0. It is supported by chips Qualcomm Snapdragon 835 (latest) 821, 820, 625, 620, 618, 617, 430. Processors starting from 625 can be used even in budget smartphones.

Quick Charge 3.0 technology allows you to fully charge a 3300 mAh battery from scratch in 96 minutes. This is an excellent result. Qualcomm also announced that the fourth version of the standard will be implemented in 2017, but 2017 is already coming to an end, and the most latest processor Snapdragon 835 received only the third version. This is what is used in phones based on this chipset.

Pump Express

Qualcomm's closest competitor is MediaTek, which also produces processors for phones. However, its products are most often used in budget Chinese phones like Meizu. Its proprietary Pump Express 3.0 fast charging technology ( latest version at the moment) allows you to fully charge your smartphone Meizu Pro 6 from 2560 mAh batteries in just 1 hour.

Technology support is only possible if there is a port USB Type-C and one of the supported SoCs (the company does not disclose the entire list).

Adaptive Fast Charging

Samsung is not far behind. Adaptive Fast Charging technology is implemented in Exynos processors. It is supported by all S series phones starting from Samsung Galaxy S6. The Note line also acquired new development– all smartphones starting from Galaxy Note 4, she is supported. The charging power from Samsung is 15 W at a voltage of 9 V, which is enough to fill a 3000 mAh battery to 50% within 30 minutes.

What about Apple?

For the first time, fast charging appeared on iPhones just the other day. Apple has implemented the technology in the new flagships iPhone 8, iPhone 8 Plus and iPhone X. During the presentation, it was stated that the phone will be able to charge up to 50% within 30 minutes. However, disappointment awaits buyers - Apple company Does not include special adapters. As standard, the kit comes with a regular 5 W plug, which does not support the technology. Therefore, in order to be able to quickly charge your phone, you will have to buy a charger with a power of 29, 61 or 87 W. And although they claim that the iPhone 8 requires 61 W charging, this is all complete nonsense. The maximum current that any of the new flagships can draw is a 29 W charger.

Other technologies

There are other manufacturers who have created their own technologies. We will indicate them briefly so as not to bore you too much:

1. OPPO implements Flash Charging or Dash Charge technology in its phones.
2. Huawei is not standing aside with its HiSilicon processors with Super Charge technology. Huawei Mate 9, P10 and P10 Plus so far have this technology, but the list will expand.
3. Meizu is working to create a revolutionary Super technology mCharge, which in theory will be able to charge a 3000 mAh battery in just 20 minutes.

So far, these are all currently known fast charging technologies that are used in various phones. Their principle is approximately the same, but there may be technical differences.

Conclusion

Finally, I would like to give some valuable advice. If the processor manufacturer’s website states that the chip supports fast charging technology, this does not mean that the smartphone with this chip will use this technology. The chipset developer only provides this opportunity, and the smartphone manufacturer decides whether to include it in the model’s functionality or not.

Also, when purchasing a power supply, you need to check which fast charging standards it supports and whether it matches the smartphone. Not all fast chargers are universal, and many of them are not capable of charging phones with other SoCs.

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Xiaomi

Xiaomi Mi5S

Where would we be without Xiaomi? Chinese company has been using Qualcomm processors for a long time and has been fruitful. But the catch is that she is often greedy, and most budget models, even with recent Qualcomm single-chip systems, lacks support for fast charging.

Therefore, all that remains is to remember the recent flagships. For example, about Xiaomi Mi5S. At first glance, it is long outdated, because Mi7 is just around the corner. However, this device is still very, very attractive in a number of ways.

Xiaomi Mi5S is a relatively compact flagship by modern standards with a 5.15-inch screen. Its heart is the Qualcomm Snapdragon 821 chip, which still has powder in its flasks. Other filling includes 3/32, 3/64 or 4/128 GB of memory. There is no microSD card slot. The battery capacity is 3,200 mAh.

Xiaomi Mi5S has cameras with a resolution of 12.0 and 4.0 megapixels. The main sensor is notable for its large size (1/2.3"). Moreover, exactly the same matrix is ​​used in the Google Pixel. And when using a “hacked” version of the proprietary Pixel camera application, the photographic capabilities of the Mi5S rise to heights unattainable by competitors.

Among the shortcomings, we note the slow fingerprint scanner.

IN Russia Xiaomi Mi5S is already extremely rare, average price– 20 thousand rubles. For 16 thousand, a smartphone can be ordered from its homeland.

Xiaomi Mi Max 2

Another outstanding Xiaomi model is the Mi Max 2. Among the smartphones under consideration, this is a record holder not only for screen size, but also for battery capacity, which is doubly important in terms of the topic under discussion.

The battery capacity of Xiaomi Mi Max 2 is 5,300 mAh. This is a more than solid indicator, but the question may involuntarily arise: does the huge 6.44-inch display negate all the advantage?

Doesn't reduce it. All tests indicate that Xiaomi Mi Max 2 is one of the undisputed leaders in terms of durability battery life. The secret lies not only in big battery, but also economical filling. The manufacturer installed an energy efficient Qualcomm processor Snapdragon 625 (8 x [email protected] GHz + Adreno 506).

There is no reason to complain about memory either: Xiaomi Mi Max 2 has 4 GB of RAM and 32, 64 or even 128 GB of ROM. They are also supported microSD cards with a capacity of up to 128 GB. The smartphone also received cameras with a resolution of 12.0 and 5.0 megapixels.

One of the “side” advantages of Xiaomi Mi Max 2 is its loud stereo speakers: not every flagship can boast of such.

When ordering from China Xiaomi Mi Max 2 will cost 13,000 rubles. The average price tag in Russia is 16,000 rubles, and in online retail it is 20,000.

Even if you are often near a power outlet, a smartphone that runs out at the wrong time can create many inconvenient moments. What to do if it’s time to go out and the battery hasn’t had time to charge? Or when we forgot to charge our gadgets in the evening, and in the morning they greet us with warning signs of discharge? Of course you can always use external battery, but you also need to have time to charge it. And it usually takes so long to charge...

Manufacturers of batteries and gadgets are well aware of this problem - and successfully solve it with the help of “fast” charging technologies. Let's take a quick look at modern technologies fast charging, especially as they continue to develop rapidly in 2017. At MWC 2017 Meizu company has introduced the fourth generation of its fast charging technology – Super mCharge.

Super mCharge

Super mCharge technology allows you to fully charge a smartphone with a 3000 mAh battery in just 20 minutes. How fast is it? The Meizu prototype equipped with this technology was 11 times faster than iPhone charging 7 Plus and was 3.6 times faster than the Samsung Galaxy S7 Edge. Of course, in 5 minutes you can charge the gadget by 30%!

To achieve this result, the high voltage direct charge (HVDC) method is used. The Super mCharge power adapter produces a voltage of 11V at a current of 5A. This means that the maximum transmitted power reaches an impressive 55 W. A regular charging cable cannot transmit such power - so to use Super mCharge you will need not only a smartphone and an adapter that supports this technology, but also a separate high-power cable.

A separate plus is that the heating temperature of the battery case with such “turbo charging”, according to Meizu promises, will not exceed 39°, which will allow you to comfortably work with the smartphone, even while charging from the mains.

Quick Charge

For several years now, Qualcomm has been releasing chips that are compatible with its own Quick Charge fast charging technology. Its support is provided either by using a separate chip in the system or a compatible Snapdragon chip. For this reason, Quick Charge technology is supported not only Android smartphones with a Snapdragon chip, but also separate external batteries – in particular models from Xiaomi.

In 2018, the fourth generation of Quick Charge 4.0 appeared, compatible with the protocol USB Power Delivery (USB-PD) via USB Type-C port. But also previous versions Quick Charge does not lose its relevance - it allows you to reduce battery charging time by up to 75%. Due to the popularity of Snapdragon chips, support for this technology can be found in many flagships from various brands. Quick Charge 3.0 technology is backward compatible with previous ones - so if your gadget supports Quick Charge 2.0, a charger with version 3 will work with it.

Quick Charge adapters provide more fast charging device, allowing the device to accept more voltage and current. If you connect Quick Charge to an old device, nothing bad will happen, but the gadget will charge at the same rate. As with Super mCharge, fast charging requires not only support for the technology on your gadget, but also an appropriate charger. You can use a regular cable - and you can quickly charge not only your smartphone, but also an external battery!

Super Charge, Turbo Charge, Pump Express, RapidCharge, FastCharge, VOOC Flash Charging

Each manufacturer strives to implement its own fast charging option for its devices. Alas, in anticipation of the “nano” or “graphene” battery technologies promised to us by scientists (which, in theory, can be charged instantly), all current solutions are implemented in the same way technical solution– increase in throughput power and current.

As an example of an alternative solution, we can mention OPPO with its proprietary VOOC Flash Charging technology. Thanks to the eight-pin battery, each of the internal cells is charged in parallel, with a current of 4.5 amperes and a voltage of 5 volts.

Pump Express works similar to Quick Charge, but only with MTK processors, and Super Charge from Huawei boasts high-speed charging records (but only in its flagship devices).

Instead of conclusions

When choosing fast charging technologies, ask which ones your gadget supports. And if you have an iPhone or your smartphone does not support any of them, it doesn’t matter, just choose a suitable external battery that supports fast charge, complete it as necessary network adapter and you definitely won’t be left without communication at the most inopportune moment. And if you already have an external battery, choose a charger that supports a charge current of 2.1A, so your iPhone will charge faster.

Aukey Wall Charger is a charger that will allow you to recharge the batteries of all devices in one place. 4 USB output will provide simultaneous charging of four devices. This memory is suitable for both home use, and for travel, because it has compact dimensions and a folding design.

• Fast charging
• Built-in fuse
• Four ports
• Universal memory

• Connector for USB-C connections
• Technology accelerated charging Quick Charge 3.0
• 5 ports
• Powered by network

• Compactness and high performance;
• LED charge indicator;
• Qualcomm Quick Charge technology

• Protection against overheating, overvoltage and short circuit
• Three USB output connectors
• Wide input voltage range
• Informative display

• Charge current: 7.2 A;
• Total power: 36 W;
• Integrated surge protector

Fast charging has become an integral part modern smartphone. This is very convenient, I can’t imagine how you can comfortably use a mobile device without this feature. Qualcomm Quick Charge technology for fast battery charging appeared not long ago - in 2013. The industry quickly picked up the trend, which in turn began to develop by leaps and bounds. Our article today is about how fast charging of smartphones works.

Qualcomm Quick Charge

In the future, we will definitely use smartphones that will have the following features:

• Battery life will increase significantly;
• its capacity will increase;
• Charging the battery will take about five minutes.

And this future is very close, thanks to the developments of Qualcomm. The last characteristic from the list is already present in a modern mobile device. New Galaxy flagship The S8 needs exactly these five minutes to get a charge for a full five hours of work. If the smartphone takes three times longer to charge, its battery will be charged by half. By the latest system Quick Charge 4 will shorten the period of full energy filling. To do this you need to have a special power supply, special cable for charging, chips that change the voltage, and a chip panel in the smartphone itself, which will regulate this process.

How does Quick Charge work?

QC technology involves a “dialogue” between the charger and the phone, in which one sets the conditions, and the second determines how much it can fulfill them. Standard charging implies an increase in battery power (limit - 20 W). If another indicator is needed that is beyond the capabilities of the device, the voltage of the power supply will be increased. Such a dialogue can become a reality, because designers have revised the process itself, and USB lines are undergoing changes. Until now, using Quick Charge did not allow simultaneous charging and data transfer. The first QC option, which appeared in 2013, increased the current strength (permissible - 2A), which meant using power within 10 W. It is known that modern chargers can produce no more than 4.5 W. Two technologies were also used:

• the first checks the compatibility of the battery and the smartphone;
• the second sets a limit on the incoming current so that the battery power does not increase and the permissible limit is not exceeded.

It turns out that this block Power supply can also be used on devices that do not support fast charging. A modified version, which appeared two years ago, allows the use of power supplies different power. This was made possible due to the fact that a second voltage regulation panel was built in, as well as a port for connecting a high power device.

Optimizing the charging process

With the introduction a year ago, there was no longer a need constant mode charging. Now you can adjust the required voltage in the range from 3.6 to 20 W, maximum power can reach 60W.

One more point: Qualcomm determines the required voltage using a compiled algorithm. While charging, the battery reduces the required current. INOV (Intelligent Negotiation for Optimum Voltage) optimizes this process and does not overvolt the battery. The latest QC design improves the INOV circuit so that excessively high voltage can be adjusted.

Development of fast charging technology

It was announced in 2016 new version fast charging - . This version is capable of charging the device’s battery 20% faster compared to QC 3. The battery is half charged in 15 minutes. Declared USB support Power Deliver.

In the summer of 2017, the company introduced a revised version. Charging time has been reduced by another 15%. Battery charging efficiency has increased by 30%. Qualcomm introduces completely new method, allowing you to control the temperature of the charger, smartphone case and connector. The developed program provides protection at four levels. It can even record the type of cable through which the battery is connected. This innovation was recommended for use by all Android models. Google Company is already fulfilling this order in practice.

Over 5 years, productivity in mobile electronics has increased 5-10 times, while battery production technologies have remained unchanged. The average battery capacity is 3000 mAh, which is 3 – 3.5 times higher than that of phones of the last decade. At the same time, there is a tendency for capacity to decrease due to a decrease in the thickness of the case, which will negatively affect battery life mobile device.

As a temporary solution, fast charging technology has been developed that can speed up the charge replenishment process by up to 75%. As a result, waiting time is reduced and mobility is increased, since the user is not chained to a power outlet for 3-4 hours. Let's take a closer look at the technology, operating principle, advantages and disadvantages.

What is fast charging

Fast charging is a technology aimed at increasing bandwidth voltage (V) or current (A), or both. The point is to recharge the built-in power source as quickly, efficiently and safely as possible. The charging speed is affected by current parameters, as well as the generation of fast charging.

Use cases

The essence of fast charging technology is to quickly charge the battery. Therefore, this option will be useful for users whose devices are equipped with small-capacity batteries or, due to being busy, actively consume power. Let's consider the effectiveness of using technology in real life.

Charging a high-capacity battery

Some smartphones and tablets are equipped with power supplies of 5000 – 12,000 mAh. Charging such devices with a network adapter with current parameters of 5V/1A will take 6-14 hours. And with the use of first generation fast charging (5V/2A), the waiting time will be reduced by almost half.

Recharging for an emergency

Suppose that on the way to work or school, the game drained the smartphone, and for the rest of the day the charge will only be enough for telephone conversations. You need to replenish the charge, and you have 15 minutes of free time. During this time, the 3000 mAh battery will charge:

1. Standard charger 5V/1A – 8.3%.
2. Fast charging 1st generation 5V/2A – 16.7%.
3. Fast charging 2nd generation 9V/2A – 30%.

Operating principle

The charging process consists of two stages. At the first stage, the current power is as high as a smartphone or tablet can receive. The second stage begins when the level of 60-75% is reached. The current strength begins to gradually decrease, and the charging process at this stage extends for 30-60 minutes. This is done to ensure that the battery does not overheat and fail.

Fast charging technology uses the same principle of operation, with the only difference being that in the first stage the current or voltage, or both, is higher. So at the beginning of the process the battery is charged quickly, and at the end at normal speed. And it is advisable to use the technology when the battery is discharged to 15-30%. Therefore, marketers write that the battery will be charged 60 or 75% in 30 minutes, but do not specify the time fully charged– 1.5-2 hours.

It is worth noting that fast charging technology is incorporated during the development of a mobile device. It requires installation of an appropriate processor, as well as a power controller capable of receiving and distributing energy from high values current/voltage. And most importantly, you need a network adapter that supports the necessary parameters.

Which Android smartphones and tablets support fast charging technology

The manufacturer indicates support for this technology on the box or in the package list. For example, on the box of the Motorola Droid Turbo 2, a proprietary charger with a power of 25 W is indicated. Information about technology support is also indicated in the specifications on the company’s website.

It is important to know that some manufacturers do not provide chargers that support fast charging technology. In this case, the user is forced to buy a network adapter separately.

How to choose a charger that supports fast charging

On the manufacturer's website you need to specify the type of fast charging, as well as the parameters of the received current: 2A/5V, 2A/7V or 2A/9V. Then select the appropriate charger, which will indicate fast charging support and the required current / voltage ratio.

Types of fast charging

Qualcomm Quick charge.

Qualcomm is the founder of fast charging and the leader of this technology, due to the widest distribution of chips and processors for mobile electronics. In four years, three generations of fast charging have appeared.

Quick charge 1.0

Increasing the current to 2A, adapter parameters 2A/5V, power 10 W. Compared to conventional 1A/5V AC adapters, the charging process is almost 2 times faster (2000 mAh per hour).

Quick charge 2.0

The voltage increased to 12V, adapter parameters 2A/5V, 2A/7V, 2A/9V and 1.2A/12V, power up to 18 W. Compared to the first generation, the charging process will be reduced by 1.8 times (up to 3600 mAh per hour). In this case, the user can be given a choice of charging speed by manually switching the voltage from the device menu, or the voltage is fixed - 7V or 9V. In both cases, the decision is made by the mobile device manufacturer at the development stage.

Quick charge 3.0

Improving the charging process by dynamically changing the voltage (3.2 - 20V in 200 mV steps). The network adapter parameters and power are the same, but Qualcomm notes an increase of 3-8% or more.

MediaTek Pump Express

Competing fast charging solution for MediaTek processors. Due to the low penetration of the technology, details are scarce, but the principle of operation is the same - increasing the current, voltage, or both. Also, the Chinese manufacturer does not hesitate to talk about its superiority over its competitors without citing specific numbers.

Pump Express

The first generation of fast charging with voltage 3.6 - 5V, current 1.2 - 2A, power 5 W (1.2A), 7.5 W (1.5 A) and 10 W (2A).

Pump Express Plus

Second generation with increased voltage (5, 7, 9, 12) and current up to 2A: 15 W (9V/1.67A) and 24 W (12V/2A).

Pump Express 3.0

Nothing is known about the third generation of fast charging. According to MediaTek, 70% of the charge will be replenished in 20 minutes.

In addition, fast charging technology is being developed by mobile electronics manufacturers: Motorola - TurboCharge, Samsung - FastCharge, ASUS - BoostMaster, etc. The essence is the same, charging the smartphone with a 15 or 18 W power adapter (2A/9V, 1.67A/9V or 3A/5V).

The distinctive implementation of OPPO (VOOC Flash Charging) and its subsidiary OnePlus (Dash Charge) is 4A/5V (20 W). In this case, the battery is divided into several cells, through which the current is evenly distributed.

Advantages and disadvantages

The advantage of the technology is the fast and safe charging of a mobile device. This reduces waiting time and increases mobility. In addition, claims that the use of fast charging accelerates wear and tear of the battery have been refuted by scientists from Stanford University and the Stanford Institute for Materials Science and Energy. At the same time, scientists were able to understand the structure and internal processes in order to increase the charging speed in the future without consequences.

At the same time, the main disadvantage of the technology is the slowdown in the search for new power sources, as well as the optimization of energy consumption. For companies, it is better to recharge the battery 2-3 times a day than to achieve slow energy consumption.

Conclusion

Fast charging technology – effective way replenish battery energy and increase mobility. There are interesting developments in this direction, including UMB with the Quick charge function. But due to the common myth about accelerated battery degradation, users prefer to continue to use adapters with low current supply. Therefore, companies should invest in optimizing energy consumption and increasing capacity while maintaining battery size. Sometimes scientists announce new power sources for portable electronics. But until companies and corporations see profit in this, the situation will remain unchanged.