Chinese zu with usb. Testing USB chargers. Appearance and specifications
We live in an age of various gadgets or devices, as you like to call it. Smartphones, tablets, e-books and textbooks, smart watches, fitness bracelets, portable audio systems, headsets, battery packs - the vast majority of these devices are charged from a USB port. Now even razors and children's toys can be charged from the USB port. A person who has only one smartphone or even an ordinary phone can immediately be considered a saint. Many modern families have a whole zoo of devices that require periodic charging.
To solve the problem of charging several devices at the same time, a multi-port USB charger will help. I assure you, these hurdy-gurdies will teach your gadgets good behavior. Get comfortable…
There are several classes of such devices. One of them is desktop chargers. The peculiarity of this class is that the device is connected to the outlet using a network cable, and not plugged into the outlet. This is a very useful and irreplaceable thing in the house. Today I will tell you all the details about several desktop chargers from the most popular brands. Be prepared for the fact that after reading the review you will want to give one of the devices to yourself for the New Year.
Today in the review we have 4 devices from the most popular manufacturers of desktop chargers: Tronsmart TS-UC5PC, ORICO CSA-5U, BlitzWolf 40W 5 Port Desktop Charger, AUKEY PA-U25.
In fact, there should have been five devices. But the company Anker, which makes quite popular chargers, refused to provide the device, saying that they were not interested in the Russian market, and reviews were not needed.
WITH AUKEY also a funny story. I was unable to contact the company by any means (for reference, devices under the AUKEY brand are produced at the same factory as Tronsmart). I independently ordered the AUKEY PA-T1 model from one of the sellers on Aliexpress. 
The delivery of this device took a long time, and this pushed back the time of publication of the review. Finally, the device was received ... To my surprise, inside the package was an AUKEY PA-U25 device, not a PA-T1. To my quite logical question with a set of obscene language, the Chinese seller replied: "Dude, what's the difference, this is also a great charging station." Because I order a lot of different things in China, this did not surprise me, cases are different, I just laughed and opened a dispute. But what is, is - in the review I will use the PA-U25 model.
We will consider and test the devices at the household level so that the review is easy to understand. I will not disassemble the devices (photos of the internal device are available for at least two devices on the network).
Several load modules with a USB connector (they consist of two resistors with a power dissipation of 10 W each), load 1 A or 2 A (in reality, about 0.95 A and 1.9 A). Several different testers: KCX-017 - the most common, KWS-10VA for connecting two load modules, unknown KEWEISI model with 9 V support. Pyrometer. Multimeter. A set of different cables and adapters.
extraneous noise
By ear, we will check whether the device makes any sound with and without load.
All testers are simple Appliances, they have a significant measurement error, especially with increasing current strength. We will carry out the same measurements several times, with different testers, and then take the average value.
The purpose of this test is to determine the voltage dip when the charger is loaded. The smaller the failure, the better. The test will be carried out in several stages:
- Loading of one port by the load module (2 A). Every port is checked.
- Loading two ports. Combinations of different ports are checked.
- Loading three ports. Combinations of different ports are checked.
Smart charging
First, with the help of a multimeter under load, we will check on which ports the Data contacts are closed. For the vast majority of devices that support fast charging, it is enough that the Data contacts are closed. The charge controller sees this and increases the current consumption.
Secondly, there are some devices that need not just closed Data contacts, but a special binding on these contacts, with the help of which the device determines the “native” charging. The most common example is Apple devices. We will check this support using the iPad, measuring the current strength.
There are other different modern technologies fast charging, such as Qualcomm Quick Charge 2.0. But today we will not touch on them, at least one of the chargers (Tronsmart) has one port that supports this technology.
Operating temperature and smell when heated
Let's connect 5 ordinary devices with a charge level close to 0 to the charger (devices are discharged before each test). After 20 minutes, using a pyrometer, we measure the temperature of the case at different points. We check for the presence of an extraneous smell from heating.
phantom clicks
Poor-quality chargers can cause phantom (spontaneous) clicks on the screen of a smartphone or tablet, there may be several reasons. I found an ancient tablet in my bins, which is very picky about the charger. And at any opportunity, when something is wrong with charging, it starts to demonstrate circus performances with spontaneous clicks. We will check with this tablet.
Cutoff/Power Limit
Because all devices are very powerful, you need to check how they behave if a load exceeding the allowable load is applied to a separate port. We will consume a current of 4A (actually 3.8A) for 10 seconds. Because the tester can measure current up to 3.5 A, then its readings may be erroneous, but this is not important (the main thing is to determine the cutoff). Ideally, the protection should kick in and the port or device should be temporarily disabled. If there is no cutoff, in certain cases all the power of the charger will rush through a thin cable to the device being charged. And the charger itself will not do well. Although such cases are rare and are associated with a short circuit or a malfunction of the device being charged, the consequences are not the most pleasant.
Tronsmart TS-UC5PC
EquipmentThe box contains: charger, power cord, micro-USB cable 1.8 m, Velcro for cable management, quick start guide. In my review of micro-USB cables, this cable has already been met, it is of very good quality.
The charger is very compact. Dimensions: 93x60x26 mm. Weight: 158 g. Case matte.
On one end there are 5 USB ports. 4 ports supporting VoltIQ technology is Tronsmart's brand name for fast charging, i.e. Data contacts are closed through a special harness, which allows some devices (mainly Apple devices) to consume maximum current. The maximum output current for each port is 2.4 A. The total current for all four ports is 7.2 A. 1 port, it has a blue "tongue", with support for Qualcomm Quick Charge 2.0 technology. This is a technology from Qualcomm that allows you to use voltages of 5, 9 and 12 V, if the device you are charging supports it (every day there are more and more such devices). The maximum current for this port is 2A.
extraneous noise
5 V.
5 V.
5 V.
4 ports: voltage sags slightly on all ports up to 4.88 V.
The device easily copes with the test load. Only at a current strength of 7.6 A, which is higher than the declared characteristics of the device, there is a slight voltage drop
Smart charging
An iPad connected to the VoltIQ ports drew 5V 2A without any problems. this iPad port does not identify as "native".
Working temperature
50ºC. There are no foreign smells.
phantom clicks
Not available in all ports.
Cutoff/Power Limit
We connect a tester with two resistors. There is no limiter in the VoltIQ ports. The device freely gave out a current of 3.7 A (5 V), i.e. no limits. It's not very good. QC port - current was limited to 2.63 A, voltage dipped to 3.66 V.
ORICO CSA-5U
Equipment
The charger is very compact. Dimensions: 98x72x28 mm. Weight: 203 g. The case is matte, but the top cover is glossy. There are several colors of the top cover, when buying, you can choose the color you like. I had gray.
On one end there are 5 USB ports. The specifications (and on the device itself) indicate that 2 ports deliver a maximum current of 2.4 A, and 3 ports 1 A. As further testing showed, all ports are absolutely equivalent, and the inscriptions are only misleading. The total current for all ports is 7.8 A. All ports support Super Charger technology - this is the brand name for fast charging from ORICO, i.e. Data contacts are closed through a special harness, which allows some devices (mainly Apple devices) to consume maximum current
On the opposite end there is a connector for the mains power cable.
The top cover has a small hole. This is an indicator of device operation. It glows in soft blue.
extraneous noise
There are no extraneous noises without load. With load, there are no extraneous noises.
We connect the load modules (in practice, the current consumption is 1.9 A).
1 any port: the voltage does not sag and is 5 V. Despite the specification and labels, any port is capable of delivering a current of 2 A.
Any 2 ports: the voltage does not sag and is 5 V.
Any 3 ports: the voltage does not sag and is 5 V.
4 any ports: the voltage sags slightly on all ports up to 4.9V.
The device easily copes with the test load. Only at a current strength of 7.6 A is a slight voltage drop observed.
Smart charging
Checking with a multimeter showed that in all ports the Data contacts are closed (in a particular case, through a strapping). For the vast majority of devices, this is enough to consume maximum current if the devices support fast charging.
Working temperature
After 20 minutes of charging 5 devices, the maximum temperature on the case was 45ºC.There are no foreign smells.
phantom clicks
Not available in all ports.
Cutoff/Power Limit
We connect the tester with two load modules. There is no limiter. The device freely gave out a current with a power of 3.69 A (5 V), i.e. no limits. It's not very good.
BlitzWolf 40W 5-Port Desktop Charger
EquipmentThe box contains: charger, power cord, quick start guide.
Appearance and specifications
The charger is very compact. Dimensions: 90x59x26 mm. Weight: 162 g. Case glossy.
On one end there are 5 USB ports. The maximum current of each port is 2.4 A. The total current for all ports is 8 A. All ports support Power3s technology - this is the brand name for fast charging from BlitzWolf, i.e. Data contacts are closed through a special harness, which allows some devices (mainly Apple devices) to consume maximum current
On the opposite end there is a connector for the mains power cable.
The device has rubber feet.
extraneous noise
Without load and with load, a chirp is heard if you bring your ear close to the device. But in complete silence, 10 centimeters from the device, nothing is heard.
We connect the load modules (in practice, the current consumption is 1.9 A).
1 any port: the voltage does not sag and is 5 V.
Any 2 ports: the voltage does not sag and is 5 V.
Any 3 ports: the voltage does not sag and is 5 V.
4 any ports: the voltage does not sag and is 5 V.
The device easily copes with the test load. Even with a total current strength of 7.6 A, the voltage does not sag.
Smart charging
Checking with a multimeter showed that in all ports the Data contacts are closed (in a particular case, through a strapping). For the vast majority of devices, this is enough to consume maximum current if the devices support fast charging.
An iPad plugged into any port consumed 5V, 2A without any problems.
Working temperature
After 20 minutes of charging 5 devices, the maximum temperature on the case was 50ºC. There are no foreign smells.
phantom clicks
Not available in all ports.
Cutoff/Power Limit
We connect the tester with two load modules. There is no limiter. The device freely gave out a current with a power of 3.63 A (5 V), i.e. no limits. It's not very good.
AUKEY PA-U25
Equipment
The box contains: charger, power cord, quick start guide and cable clip.
Appearance and specifications
The charger is large and has an unusual circle shape. Dimensions: 120x120x29 mm. Weight: 241 g. The case is smooth, but not glossy. In the central upper part there is a glossy insert.
All 6 ports look up. The specifications (and on the device itself) indicate that 3 ports deliver a maximum current of 2.4 A, and 3 ports 1 A. As shown by further testing, this is true. The total current for all ports is 10.2 A. Two ports support AIPower technology - this is the brand name for fast charging from AUKEY, i.e. Data contacts are closed through a special harness, which allows some devices (mainly Apple devices) to consume maximum current. The bottom has rubber feet.
At the end there is a connector for a network power cable and a power switch.
The top cover has a small hole. This is an indicator of device operation. It glows in green, very harsh and unpleasant.
extraneous noise
Without load, a chirping sound is heard if you bring your ear close to the device. But in complete silence, 10 centimeters from the device, nothing is heard. With load, there are no extraneous noises.
We connect the load modules (in practice, the current consumption is 1.9 A).
1 port labeled 2.4A: the voltage does not sag and is 5 V.
1 port labeled 1A: protection/cut-off is triggered, the port is disabled.
2 ports labeled 2.4A: the voltage does not sag and is 5 V.
3 ports labeled 2.4A: the voltage does not sag and is 5 V.
Additionally, we use a load with a current strength of 1 A.
3 ports labeled 2.4A and 1 port labeled 1A: the voltage does not sag and is 5 V.
3 ports labeled 2.4A and 2 ports labeled 1A: the voltage does not sag and is 5 V.
The device easily copes with the test load.
Smart charging
Checking with a multimeter showed that only in two AIPower ports, the Data contacts are closed (in a specific case, through a strapping). For the vast majority of devices, this is enough to consume maximum current if the devices support fast charging. With the rest of the ports, many devices will not be able to use fast charging and will consume a limited amount of current.
An iPad connected to the AIPower ports drew 5V, 2A without any problems. The remaining ports drew 0.93A.
Working temperature
After 20 minutes of charging 5 devices, the maximum temperature on the case was 40ºC. There are no foreign smells.
phantom clicks
Not available in all ports.
Cutoff/Power Limit
We connect the tester with two load modules. A cutoff is triggered on any of the ports, the port is disabled. Unaffected ports continue to work. The protection is excellent.
Conclusion
Charging device Tronsmart TS-UC5PC, ORICO CSA-5U and BlitzWolf 40W 5-Port Desktop Chargers are almost perfect. All of them have a compact size, fully comply with the declared characteristics and can provide a perfect charge for any of your devices. The device from Tronsmart has a port that supports Qualcomm Quick Charge 2.0. The device from ORICO is absolutely silent from all the tested chargers. The device from Blitzwolf is able to satisfy the appetite of 4 devices with a current of 2A each without a voltage drop. But all three charges do not have a power limiting system on individual ports.AUKEY PA-U25 has an inconvenient form factor (subjectively) and a large size, inconvenient separation of ports by power - you need to constantly think about which port to connect the device to. The device fully complies with the declared characteristics. The level of protection for this charger is simply excellent - disabling individual ports when the current is exceeded and a central switch. And the operating temperature of the device was the lowest of the tested.
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Hello Habra gentlemen and Habra ladies!
I think some of you are familiar with the situation:
“Car, traffic jam, N-th hour of driving. The communicator with the navigator running for the 3rd time beeps about the end of the charge, despite the fact that it is connected to charging all the time. And you, as an evil, are absolutely not oriented in this part of the city.
Next, I will talk about how, with moderately direct hands, a small set of tools and a little money, build a universal (suitable for charging with a rated current, both Apple and all other devices), USB car charging for your gadgets.
WARNING: There are a lot of photos under the cut, some work, no LUT and no happy ending (not yet).
Author, what for all this?
Some time ago, the story described in the prologue happened to me, a Chinese usb twin, absolutely shamelessly let my smart phone run out during navigation, out of the declared 500mA it gave out about 350 for both sockets. I must say I was very angry. Well, okay - I'm a fool myself, I decided, and on the same day, in the evening, a 2A car charger was ordered on eBay, which rested in the depths of the Chinese-Israeli mail. By a lucky chance, I had a DC-DC step down converter with an output current of up to 3 A lying around, and I decided to assemble a reliable and universal car charger on its basis.A little about chargers.
Most of the chargers that are on the market, I would divide into four types:
1. Apple - sharpened for Apple-devices, equipped with a little charging trick.
2. Ordinary - focused on most gadgets, for which shorted DATA + and DATA- are enough to consume the rated charge current (the one that is declared on the charger of your gadget).
3. Stupid - in which DATA + and DATA- hang in the air. In this regard, your device decides that it is a USB hub or a computer and does not consume more than 500 mA, which negatively affects the charge rate or even in the absence of it under load.
4. Cunning%!$&e - since they have a microcontroller installed inside, which tells the device that something from the category of what the notorious Kipling hero told animals - “We are of the same blood, you and me”, checks the originality of the charge. For all other devices, they are the third type of memory.
The last two options, for obvious reasons, I consider not interesting and even harmful, so we will focus on the first two. Since our charging should be able to charge both apple and all other gadgets, we use two USB outputs, one will be focused on Apple devices, the second on all the rest. I will only note that if you mistakenly connect the gadget to a USB socket not intended for it, nothing terrible will happen, it will simply take the same notorious 500mA.
So, the goal: "After working a little with your hands, get a universal charger for the car."
What do we need
1. To begin with, let's deal with the charge current, usually it is 1A for smartphones and about 2 Amperes for tablets (by the way, my Nexus 7, for some reason, does not take more than 1.2A from its own charge). In total, for the simultaneous charging of an average tablet and smartphone, we need a current of 3A. So the DC-DC converter that I have available is quite suitable. I must admit that a 4A or 5A converter would be better suited for these purposes, in order to have enough current for 2 tablets, but I did not find compact and inexpensive solutions, and even time was running out.So I used what was:
Input voltage: 4-35V.
Output voltage: 1.23-30V (adjustable by potentiometer).
Maximum output current: 3A.
Type: Step Down Buck Converter.
2. USB socket, I used a double one that I soldered from an old USB hub.
You can also use regular sockets from a USB extension cable.
3. Breadboard. In order to solder a USB socket to something and assemble a simple charging circuit for Apple.
4. Resistors or resistances, as you like, and one LED. Only 5 pieces, 75 kOhm, 43 kOhm, 2 with a nominal value of 50 kOhm and one at 70 Ohm. On the first 4, the Apple charging circuit is being built, I used 70 Ohms to limit the current on the LED.
5. Body. I found a Mag-Lite flashlight case in the bins of my homeland. In general, a black toothbrush case would be ideal, but I did not find one.
6. Soldering iron, rosin, solder, wire cutters, drill and an hour of free time.
We collect charging
1. First of all, I shorted the DATA + and DATA- pins to each other on one of the sockets:
* I apologize for the harshness, I got up early and the body wanted to sleep, and the brain continued the experiment.
This will be our outlet for non-apple gadgets.
2. We cut off the size of the breadboard we need and mark and drill holes in it for the mounting legs of the USB socket, at the same time checking that the contact legs match the holes in the board.
3. We insert the socket, fix it and solder it to the breadboard. We close the + 5V contacts of the first (1) and second (5) sockets with each other, we do the same with the GND contacts (4 and 8).
The photo is for clarification only, the contacts are already soldered on the breadboard
4. Solder the following circuit to the remaining two contacts DATA+ and DATA-:
To observe the polarity, we use the USB pinout:
I got it like this:
Do not forget to adjust the output voltage, using a screwdriver and a voltmeter, set 5 - 5.1V.
I also decided to add an indication to the USB power circuit, in parallel to + 5V and GND I soldered yellow ice with a 70 Ohm resistor to limit the current.
A convincing request to people with a fine mental organization and other lovers of beauty: "Do not look at the following picture, because the soldering is crooked."
I am brave!
5. We fix the converter board on our breadboard. I did this with the help of legs from all the same resistors, soldering them into the contact holes on the converter board and on the breadboard.
6. Solder the outputs of the converter to the corresponding inputs on the USB socket. Observe polarity!
7. We take the case, mark and drill holes for mounting our board, mark and cut out a place for a USB socket and add holes for ventilation opposite the converter chip.
We fasten the breadboard with bolts to the case and get this box:
In Machine it looks like this:
Tests
Next, I decided to check whether my devices will really consider that they are being charged from their native charger. And at the same time measure the currents.Power is provided by the PSU from an old 24V 3.3A printer.
I measured the current before going to USB.
Looking ahead, I’ll say that all the devices I have recognized charging.
To USB socket number one (which is designed for different gadgets) I connected:
HTC Sensation, HTC Wildfire S, Nokia E72, Nexus 7, Samsung Galaxy ACE2.
For the Sensation and Nexus 7, I checked the charge times, starting at 1% and charging up to 100%.
The smartphone was charged in 1 hour 43 minutes (Anker 1900 mAh battery), I should note that it takes about 2 hours to charge from a standard charge.
The tablet was charged in 3 hours 33 minutes, which is half an hour longer than charging from the network (I only charged one device at a time).
In order for both Android devices to take the maximum from charging, I had to solder a small adapter (which connected to apple USB), HTC Sensation is connected to it.
I connected to USB socket number two: Ipod Nano, Ipod Touch 4G, Iphone 4S, Ipad 2. Since Nano is ridiculous to charge with such a thing - it took a maximum of 200 mA from me, checked Touch 4g and iPad. Ipod charged 1 hour 17 minutes from zero to 100% (albeit with IPAD 2). iPad 2 took 4 hours and 46 minutes to charge (one).
As you can see, the Iphone 4S consumes its rated current with pleasure.
By the way, Ipad 2 surprised me, it absolutely did not shy away from circuits with shorted data contacts and consumed absolutely the same currents as from the socket intended for it.
Charging process and conclusions
To begin with, let me remind you that all devices that use lithium batteries have a charge controller available. It works according to the following scheme:
The graph is averaged and may vary for different devices.
As you can see from the graph, at the beginning of the charging cycle, the controller allows charging with the maximum allowable current for your device and gradually reduces the current. The charge level is determined by the voltage, the controllers also monitor the temperature and turn off charging at high values of the latter. Charge controllers can be located in the device itself, in the battery or in the charger (very rarely).
You can read more about charging lithium cells.
Actually, here we come to the point why this topic is called: "Attempt number one." The fact is that the maximum that I managed to squeeze out of the charge is: 1.77A
Well, the reason, in my opinion, is not the optimally selected inductor, which in turn prevents the Buck-converter from delivering its maximum current. I thought to replace it, but I don’t have a tool for soldering SMD and it’s not expected in the near future. This is not a fault of the ebay board designers, this is just a feature of this circuit as it caters for different input and output voltages. Under such conditions, it is simply impossible to deliver the maximum current over the entire voltage range.
As a result, I got a device that can charge two smartphones at the same time or one tablet in a car in reasonable time.
In connection with the foregoing, it was decided to leave this charge as it is and assemble a new one, completely with your own hands, based on a more powerful LM2678 converter,
which in the future will be able to “feed” two tablets and a smartphone at the same time (5A output). But more on that next time!
P.S.:
1. The text may contain punctuation, grammatical and semantic errors, please report them in a personal message.
2. Thoughts, ideas, technical corrections and CC from more experienced comrades - on the contrary, they are welcome in the comments.
3. I apologize for possible technical inaccuracies, because Until recently, I did not deal with electronics and circuitry.
Thank you for your attention, good luck and inexhaustible optimism!
After testing over 10 USB cables bought from Aliexpress (), I was wondering which phone charger is best?
By and large, all chargers are about the same and everyone charges smartphones or tablets, but some do it faster. It all depends on the quality of the components and the power scheme.
Let's say you have a device (for example, a 10,000 mAh Powerbank) that you use every day. In the evening, put the device on charge, but in the morning you find that the device is not fully charged.
This is normal if you have a bad PSU. If the PSU outputs 0.5A at the output, then it will take 2 hours at best to charge 1000mAh, and it will take 20 hours to charge 10A. This is the worst option.
But, thank God, such chargers are practically an exception (although, as the test will show, not quite!), But charges that give out 1A at the output are quite common, and for full charge 10A will take 10 hours, which is also not very good.
With a good 2.0A charge, you need 4 times less time in the first case and 2 times less time in the second case.
For testing it took:
- usb best wire
USB charging:
I wanted to test about 5 more popular chargers, but they stuck in the mail and never arrived. Maybe I'll add them to the review a little later.
* Test each charge with a "normal" voltmeter / ammeter - no time. Approximate characteristics will be visible with the USB tester.
This review does not claim to be true, but can only help you decide on a purchase choice, as well as help save money when buying a USB charger in China (on Aliexpress).
4 USB travel
No Name charging for 4 USB ports - two with 1A output and two with 2.1A output. Charging is soundly assembled and despite the removable euro plug, it does not play.
Declared characteristics: 5.1V - 1A and 5.1V - 2.1A. The built-in blue LED cannot be turned off, but it does not shine very much.
Chuwi
I was very surprised and liked Chuwi charging:
Nice packaging, very good assembly, matte plastic. According to the characteristics they promise 5V - 2A.
Something similar to OnePlus One.
Nillkin
On the advice of users, of course, I purchased a charger from Nillkina. I hope that it will live longer than the USB wire ...
The manufacturer promises 5V -2A output. Charging has several quality certifications. Online verification goes well:
There are a couple of shortcomings that are immediately evident:
1) The case is made of glossy plastic, on which fingerprints remain
2) Chinese fork. A company as big as Nillkin could also take care of the euro version of the charger.
Update: A version with euro plug exists. The second flaw is removed ...
HTC TC E250
This charger was inherited from an old smartphone, but for some reason it charged smartphones very poorly. After testing, it will become clear why. Output: 5V - 1A.
iTechnology 3 Usb SG-TC06 charger
iTechnology - Hong Kong company charging, up to today unknown to me. Nice print and decent build, euro plug. I was interested in the fact that it has 3 USB outputs. One of the ports is marked 2.4A, the rest are 1A. Supplied in a plain white box with two usb wires.
iTecnology 4 Usb SG-TC09E
We can say that SG-TC09E is the older version of iTecnology SG-TC06 with 4 usb outputs. Two for 2.1A and two for 1.0A. Supplied in a separate box with two usb wires.
The manufacturer promises a total output power of 5.0V and 4.2A (2.1A + 2.1A + 1.0A + 1.0A).
The ends are perforated for improved ventilation.
There is only one complaint about the assembly. The fork backlashes a little, but it is not critical + it is treated. And so, in general, very good impressions left.
Jiayu-Travel Charger
Default charging Jiayu S3 with euro plug. Output characteristics: 5.0V - 1000mA
Lenovo C-P32
Standard charger supplied with the K900 smartphone. Declared characteristics 5.2V - 2.0A.
Meizu UP0520
Baby Meizu - charging from the kit from Meizu M1 Note. Small, well-assembled (although they did not blunder here). Declared characteristics 5V - 2A.
To avoid unnecessary wires, charging with a built-in power supply unit - DCF-4U was chosen. Looking ahead a little, this is the best stationary charger for your money for two or more usb outputs.
Packed very securely, delivered in a separate cardboard box. In addition to the charging itself, the box also contains a power cord with a Euro plug, as well as instructions in English.
It has 4 USB outputs: two for fast charging at 2100mA and two regular ones at 1000mA, 5V.
The only negative for me is a very bright LED that needs to be either painted over or turned off. Shines like a beacon.
One Plus
Charger included with 1+1. Good build quality. Gives out 5V -2A.
OEM #1 ETAOU10BE
OEM Chinese charging with two USB outputs. Similar chargers were sold by Sharegood for $1.5. The characteristics are indicated in Russian, although they are printed terribly.
They promise 5V -2A. Above each output is written: for Ipad or for GalaxyTab.
OEM #2 ETAOU10BE +MicroUSB cable
Charging with the mysterious name ETAOU10BE, with a built-in microUSB wire. Declared characteristics: 5V -0.7A.
OEM #3 Double USB AC Adapter
A small cubic charger with two usb ports for 1A and 2.1a. Available in two versions: Black and White. Characteristics: 5V - 2100mA.
OEM #4 DS96000
The cheapest charger on Aliexpress for 70 cents with delivery. Very thin + with euro plug. Promising output power: 5V-1A.
TCL WCN1A5V00-04
Charger supplied with the TCL S720 smartphone. Very interesting solution with folding fork. The only negative is only 5V-1A at the output.
Ulefon
Complete charger that comes with the Ulefon Be Pro smartphone. Nice packaging, euro plug. Output power: 5V-1A.
Xiaomi MDY-03-EC
Charging from the Mi Pad kit. If not for the glossy body, we could say that this is a copy of Lenovo C-P32 Declared characteristics: 5V - 2A.
Yi A8-501000
Xiaoyi is a complete Xiaomi Yi camera charger. Output power: 5V - 1000mA.
Some test results were expected and predicted:
Charging produces reference 5.03V - 1.71A when 1 device is connected, 5.00V - 1.71A when two devices are connected, 4.97V-1.71A when three devices are connected.
An unexpected result surprised charging iTechnology 4 USB :
Charging gave out stable 5.11V - 1.71A with one, two, three connected devices. The same Orico sagged a little...
Charger iTechnology 3USB I was also pleasantly surprised, especially considering the price:
- 1 connected device 4.97V - 1.68A
- 2 connected devices 4.94V - 1.65A
- 3 connected devices 4.95V - 1.68A
During testing, the only negative was found: despite the excellent results, the charging did not make a very pleasant sound and demonstrated with all its “buzzing” that she did not have long to live. Pity, very pity.
The Chinese noname, despite the drawdown, when connecting several devices, in any case showed good results:
- 1 connected device 5.14V - 1.71A
- 2 connected devices 4.94V - 1.66A
- 3 connected devices 4.77V - 1.41A
I expected the worst from this charge, but in the end it copes well even with 2-3 connected devices.
NoName assembly:
OEM #4 DS96000: 4.45V - 0.45A - the quality is proportional to the amount paid. I hope someone reads this review before buying, and does not waste 70 cents 😉
OEM #3 Double USB AC Adapter :
Despite the marking at 2.1A, at one of the outputs, charging gives out only 4.63V-1.01 A, and at the 1A output it gives out - 4.6V and 0.99A.
I don't recommend buying either. The seller returned the money for a fake product.
OEM #2 ETAOU10BE+MicroUSB the wire:
Another mystery of the Chinese industry: 4.46V and 0.48A. I definitely don't recommend buying.
OEM #1 ETAOU10BE Dual-port :
Dual-port charging showed a good result:
- 1 connected device 5.00V - 1.61A
- 2 connected devices 4.77V - 1.14A
Reference 5.00V and 1.61 A from such a baby took me by surprise. I didn’t think I didn’t think that I could squeeze so much out of myself, especially after the OEM #2 test. But you have to pay for everything.
Charging heats up incredibly (~ 60-70 degrees). It's a pity that heat reduced to 0 impressions of charging. But then again ... Cheap does not mean high quality.
Middle-end charging :
Xiaomi :
I have already tested Xiaomi charging before, but still I repeat: 5.26V-1.71A. Very good charging, especially since it comes free with the tablet.
Lenovo C-P32 :
Lenovo charger has also participated in testing before. Xiaomi showed an identical result: 5.26V-1.71A.
Meizu Note :
And here was a real surprise. After the terrible build quality of the Meizu M1 Note, I assumed that the charging would be the same ... But no, the little Meizu showed the following result: 5.18V - 1.71A. What is most interesting is that the charge, of course, warmed up, but did not exceed 45-50 degrees.
Nillkin :
Charging from Nillkin: 5.09V-1.71A. Doesn't get hot when charging. An excellent choice for your money.
Chuwi :
I have never had the pleasure of testing this company's products before. Therefore, the result of testing this charge was of most interest.
Here is what the charging from Chewie showed: 5.20V and 1.71A.
TCL, HTC, Ulefon, Jiayu, XiaoYi
In short, all these charges underestimated the voltage, but in terms of Amperes, they correspond to the declared characteristics and even slightly exceed them:
- TCL: 4.66V - 1.11A
- Jiayu: 4.71V - 1.24A
- Ulefon: 4.63V - 1.04A
- Xiaoyi: 4.66V - 1.11A
About HTC. As mentioned earlier, charging practically did not charge the smartphone. In practice, charging is constantly turned on and off.
Showing at first 8.88V - 8.88A, and after a second delay it showed 5.11V and 0.45. And so in a circle. Naturally, in this way, the smartphone could not even charge overnight.
Due to the fact that the charges are not the same in type (a different number of UBS outputs), it is quite difficult to choose a winner unanimously.
If we are talking about stationary home chargers, then I advise you to choose Orico or iTecnology. They are almost the same, although Orico is a well-known and time-tested company (+ there are chargers for every taste and color 3 USB output \ 4 USB output with or without PSU \ 5 USB, etc.).
From a portable segment with one USB output, I advise Nillkin Charger with two hands:
1. 100% counterfeit protection.
2. Euro plug.
3. Corresponds to the declared characteristics.
If you need more than one USB port, then take a look at 4 USB travel. Pretty good charger. change plug, good quality assemblies.
Perhaps when the Vojo charger for two USB ports arrives, I will change my mind.
Of non-purchasable chargers: OnePlus=Lenovo+Xiaomi=Chuwi - they are all almost the same.
It’s hard to choose from the No Name segment (all charges are of dubious quality), then either:
a) Dual port
b) OEM #1 ETAOU10BE Dual-port with mandatory revision.
*Disclaimer: This test/review does not claim to be truth or professional testing.
- Chargers for USB devices
- Quick Charge
Fast charging of a smartphone (Quick Charge, Fast Charging) becomes a necessity for several reasons at once. Or the smartphone battery does not withstand the whole day of use and requires a quick recharge in the middle of the day. Or a high-capacity battery is installed in the smartphone, which, without fast charging, takes several hours to fully charge. Fast chargers allow you to recharge your smartphone in minutes and you do not have to "be tied to the outlet" for a long time.
There are several fast charging technologies used by USB chargers. It should be noted that both the smartphone and the charger must support the same fast charging technologies. However, the essence of the technologies is approximately the same - to increase the power of the USB charger with more current and / or more voltage. Most smart devices with fast charging have an increased output voltage and allow you to charge batteries faster. In the list below you will find fast chargers for Samsung smartphones (Adaptive Fast Charging), as well as for smartphones based on the Qualcomm platform (Quick Charge) and Mediatek (Pump Express). There are fast chargers with a voltage of 5V and 3 - 4 Amperes. They can also be found on the list. You'll also find fast-charging power banks and fast Qi wireless chargers here.
