Shopping on Aliexpress is gaining momentum and on this trading platform you can find many products from different areas. Now I would like to talk about choosing food cans from China, analyze the problems, advantages and disadvantages of purchases.
What is a power bank, what does it consist of?
Power bank is a very capacious portable accumulator, which can charge up to 4 devices simultaneously. It has a charging input (most often one-amp) and several USB outputs for charging. Most have a can on/off button to save battery and battery status indicators.
Inside the can there is a controller board and several rechargeable batteries, soldered into a single circuit.
50,000 mah batteries – myth or reality?
Now on Aliexpress you can see many power banks with a capacity of 50,000 mah. To figure out whether this is a real figure, let’s use the simplest mathematical examples and prices for components for a 50,000 power bank.
Find AA batteries on Aliexpress. It’s worth noting right away that batteries with a capacity above 3600 mAh (Panasonic) are not manufactured in the form of batteries; with current technologies this is impossible! At retail in the markets you can buy batteries with a maximum capacity of 3400 mAh!
For example, we took Chinese-made 2500 mAh batteries for about 1000 rubles for 4 pieces.
Batteries 2500 mAh
In total, for 1000 rubles we get 10,000 mAh. For 50,000 we will need 20 batteries, which will cost 5,000 rubles.
The diameter of one battery is 14.5 millimeters. Multiply by 20 + a couple of centimeters per board, we get approximately 30 centimeters. Length – 5 centimeters + body and place for soldering, total – 6 centimeters.
We have the dimensions required for a 50,000 mAh jar: 30*6*2 centimeters and a cost of 5,000 rubles. Now let's go to Aliexpress, and this is what we see:
Power bank 50000 mAh
The dimensions of both are approximately the following: 150*80*22 millimeters. It’s easy to guess that a board and 8 batteries are packed here. And the price of one power bank is 50,000 too low. So Power Bank at 50,000 - this is another commercial move for those who look at size, not quality, and the reviews are real confirmation of this.
How to calculate the real capacity of a Power Bank for charging phones and tablets?
If you buy a solar power bank with a capacity of 20,000 mAh, you should initially understand that this is a nominal capacity. By conditional we mean the fact that most batteries have a voltage of 3.7 volts, and the output when charging external devices requires 5 volts. Those. The actual battery capacity will be slightly less. And this applies not only to Chinese cans, but also to branded ones. To calculate how much actual capacity is in a 20,000 mAh power bank, you need:
Total capacity / for output voltage and * for input voltage. Total, with a conditional 20,000 we have:
20000 / 5 * 3.7 = 14800 mAh (this is exactly how much charge a full bank will transfer to devices with an input voltage of 5 volts).
How to choose a solar power bank?
When choosing a solar mobile battery, you should understand that it full power may also be exaggerated and should cost at least 2 times more than usual. The fact is that solar filters are very expensive and cannot be sold for pennies.
If, for example, a regular bank for 20,000 will cost 3,000-4,000 rubles, then a solar power bank, accordingly, will cost 6,000-8,000, or even more expensive (depending on the quality of the filters).
What is the best Power Bank to buy?
Don't know which portable battery to choose? We recommend that you first think about the required power. If you are going on a trip, you need very capacious battery. Take a closer look at the options for 16,000 or 20,000. Don’t even pay attention to the 50,000 capacity, it will essentially be 10 Ah and no more.
If you need to charge your phone on the go, a 5400 mAh bank will be enough. They are very compact and lightweight. Such batteries are enough for 1.5-2 full charges.
It is best to trust famous brands like MyTab, Xiaomi, Nomi, etc. They have already earned respect and cope with their task without any problems. I especially wanted to highlight the Xiaomi 16000. This is one of the best power banks, which is made in China and fully complies with the stated characteristics. It is inexpensive, and the capacity is enough for 4-5 charges of an ordinary phone. And this is enough for several days of travel.
Xiaomi 16000 16000 mAh
It charges in approximately 18-20 hours to full capacity. When powering the phone through an output of 1 ampere/hour, it will work for about 15 hours if you are used to actively using gadgets, but it is worth considering that such charging slightly wears out the gadget’s battery. When charging, the phone must be turned off or remain locked.
Xiaomi 16000 on the top panel has 1 connector for charging a can with a power of 1 ampere. Next to the connector there is a power button. On the other side of the charging connector there are two USB ports with 1 and 2 amperes. On the front top there are 4 charging indicators and the company logo in the center.
The power bank's body is made entirely of aluminum, which protects the battery from overheating and maintains optimal performance.
It is best to store such a bank in a dark, cool place at 50% charge. In this case, there will be minimal wear on the container. Approximately 10% per year. If it is constantly in a heated state, then within a year its volume can be reduced by up to 40%. These are features of lithium-ion batteries and cannot be avoided.
If you are interested in the characteristics of this power bank, you can purchase it from the following seller:
The seller ships the power bank within 1-2 business days.
There is also an absolute analogue of this power bank - MyTab Gaser 16000, but it is this moment failed on Aliexpress.
How to assemble a Power Bank yourself?
If your hands grow out of place and you are not afraid to hold a soldering iron in your hands, you can assemble your bank yourself by purchasing all the necessary parts on Aliexpress. Naturally, you won’t be able to raise money for 50,000, but for 15,000-20,000 it’s quite possible.
You will need:
Nickel plate for welding batteries into a whole system:
And batteries up to 2500 mAh (6-8 pieces), depending on the required capacity:
How to assemble a bank yourself is discussed in great detail in the video:
Don't forget to leave reviews about own assemblies food banks.
Hello everyone.
Today we’ll talk about a very interesting, effective and fairly compact device that allows you to extend the life of your everyday companion (smartphone, tablet, etc.) away from a power outlet. As everyone has already guessed, this is a power bank, in my case with 4 batteries, but more on that later...
Probably everyone has encountered the problem when your phone dies from lack of battery power, and just at this time you need to make a very important call, take a few photos, or just listen to music on a long trip. A power bank was created for this purpose.
It cost me $3.16.
I chose power bank MI (not the original device).
For those interested, watch the video review of this device
There were 5 colors to choose from: black, silver, pink, gold and blue. I ordered blue, but it's more of a metallic blue than blue.
The package arrived... The power bank was well packaged, the package contained the aluminum body of the device, the inner plastic part with the power board installed on it and back cover- latch.
Power bank is designed for 4 lithium ion battery 18650 format (for those who don’t know, these are found in laptop batteries).
I saw the same power bank on sale, only for 8 batteries, it has an elongated body.
IMPORTANT! Delivered given power bank without batteries.
As I mentioned earlier, I took the batteries for my power bank from an old laptop battery. Batteries can be bought at places where they repair laptops, they cost pennies. The most important thing is to try to find the youngest battery (at least visually). This battery cost me 150 rubles; it contained 6 18650 batteries.
Also, 18650 batteries can be ordered separately on the same Aliexpress, but I don’t like them - the cheap ones have a small capacity, and if you choose from good ones, they cost about 600 rubles. a piece. Consider for yourself...
IMPORTANT! If you order batteries for this device, choose without a protection board. Protected batteries most likely will not fit into the power bank (the spaces are right next to each other). In laptop batteries, they are all unprotected, and the protection is provided by its own board.
So, observing the polarity, we insert four batteries and place the whole thing in an aluminum case, snap the bottom cover on and use it.
As soon as we installed the batteries, we immediately felt a change in the weight of the power bank, and this weight is quite noticeable - 235.9 g.
As for using the device... On the top there is one round big button with a power-on icon, so this is not a button for turning on the device, but for displaying the remaining charge. The remaining battery charge can be monitored by focusing on 4 small LEDs installed on the power board. In order for them to be visible, small holes are made next to the power button.
Next we see a micro USB connector, through which the power bank is charged, and a USB connector, through which a phone or tablet is charged.
To use the power bank, you only need one cable; it can be taken from your original phone charger, or you can purchase it separately.
To charge the power bank, connect it to your phone charger. It takes a very long time to charge, I charge it all night. This is understandable... The larger the battery capacity, the longer it takes to charge the device when the same current is supplied.
If you need to charge your phone, connect it to the USB connector of the power bank using the original cable.
That's it, charging has started...
The capacity of four power bank batteries is enough for 2-3 full charges of my phone (the battery capacity of my phone is 2600 mA/h). For those who have a smaller phone battery capacity, the power bank will be enough for a larger number of charges.
The maximum output current from my power bank is 1A, which corresponds to the original charger of my phone. When the phone battery is saturated, the current at the output from the power bank gradually drops, this indicates proper operation Power bank power boards.
I checked the output current with this device
When using this power bank, one drawback emerged. When the power bank is fully charged, when we press the button we see 4 LEDs on, as it should be, but when we connect a phone or other device to it, one LED goes out, and sometimes two. At the same time, it is not at all clear how much the batteries in the power bank are actually charged. What is this connected with? Most likely, due to the incorrect operation of the power board in the mode of displaying the remaining battery charge, but the good news is that this does not have a negative effect on the charging process. Perhaps only my copy has this drawback, but I cannot check this.
As a result, having spent 362 rubles (212 rubles for a power bank and 150 rubles for batteries) we get a high-quality, almost fully functional, very necessary device that will always save you from a dead phone battery when away from home.
I hope this information was useful to you, thank you all for your attention.
In this article we will tell you about best models Powerbank presented on Aliexpress.
Power banks or Powerbanks are currently very popular devices that allow you to charge gadgets in any convenient location without the need for a network connection. All you have to do is charge the power bank and use it at your discretion. On Aliexpress you can also buy a lot interesting models. Let's talk about the best.
If you are encountering this site for the first time, we recommend that you study the article for beginners at the link. She will tell you in detail how to register, find the things you need and make a purchase.
Rating of the best, popular power banks on Aliexpress: catalog, photo
Today one can only be amazed at the variety of electronics on Aliexpress. There is everything here - smartphones, players, tablets and so on. Each of these devices needs charging, and you have to constantly monitor and take it with you Charger. But what if there is no outlet nearby? Special devices called power banks or powerbanks can solve this problem. This thing has a very capacious battery and several USB connectors. This allows you to charge gadgets in any convenient place. The power bank itself also needs to be charged, otherwise where will it get energy from?
As we have already said, power banks are Aliexpress presented in a huge assortment. You can find all the models by following the link, and we will tell you only about the best.
19th place. Tollcuudda 18650
This power bank has an interesting design. It is made in the shape of an owl and its capacity is only 3000-5000 mAh. The model has shockproof protection and is not susceptible to damage when dropped. There are 2 ports on the case for connecting gadgets. You can use them simultaneously. This is a great option for daily use.
18th place. Mageek
This device attracts with its compactness, but at the same time its capacity is small - only 3350 mAh. The body is made in the form of a tube and can be put in any pocket, so this assistant can always be with you. The battery capacity is enough for a couple of days of use. It is sold in several colors, which is also an advantage.
17th place. Vinsic P3
This power bank is considered a more serious device. It has a capacity of 20,000 mAh which is enough even to charge a MacBook. By the way, the kit even includes a special cord. The model is considered one of the most advanced in the site’s assortment.
16th place. Vinsic Iron P6
The next one in the ranking is also a power bank from Vinsic. It has the same capacity of 20,000 mAh, as well as an original attractive design, which allowed the device to become popular all over the world. Interesting appearance, a durable black case, as well as a small screen displaying the charge level - all this makes the device functional and convenient. The kit also includes a carrying case.
15th place. Orico D
14th place. Orico
13th place. Philips
The company also couldn’t ignore the popular power banks and made its own model with a 10,400 mAh capacity. The thin but very durable body will not get in the way in your pocket, and therefore you can always take the device with you. Probably, it’s not even worth talking about quality, since it is considered one of the most the best manufacturers high-quality electronics and technology.
12th place. Ibtion
This model is considered a representative of the classic category, which can always be at hand and quickly charge the gadget. The device has a thin plastic body, only one charging port, and an indicator showing the remaining charge. The battery capacity is only 4000 mAh and this is enough for a day of use. For not too long trips or just a walk around the city for the whole day, this is quite enough.
11th place. Pineng PN-999
The device differs not only in its large capacity - 20,000 mAh, but also in its fairly reliable and durable body, which prevents it from being damaged if dropped or hit. In addition, it has a small display where you can see how much charge is left, and two USB port can be used simultaneously, saving time on charging. The device is available in three colors.
10th place. Tollcuudda 10000mAh
This is a very thin power bank with a capacity of 10000 mAh. It features an original design and a body with additional protection, but this does not prevent it from remaining ultra-thin. This device will easily fit into any purse or pocket. By the way, on Aliexpress Additionally, you can order a storage case included, but just check this information, as it may not be available.
9th place. Xiaomi 5000 mAh
8th place. Ferising
The company offers customers Aliexpress a good model of a 20,000 mAh power bank. This device has two USB ports, a durable charging slot, and a convenient button to turn the device on/off. The device has several cords included, which allows it to remain universal.
7th place. Tollcuudda with a flashlight
6th place. Pineng
This is another power bank model from. She has interesting design and fits perfectly into an office, student or school environment. Its body is not very brightly colored and seems to be ribbed, which will undoubtedly attract attention. In addition, the device can fit into any pocket or bag, and the 10,000 mAh capacity is enough for several days of use.
5th place. Toproad
4th place. Romoss
3rd place. Pisen
2nd place. Xiaomi V2
1 place. Xiaomi Mi Power Bank 2
Which Power Bank is the best on aliexpress?
3.8 (75%) 4 votesLife in the modern world is impossible to imagine without electronic devices. Various gadgets surround us at home, at work, on the road, even during outings. But it is not always possible to recharge devices in a timely manner. Sometimes it's just a minor nuisance. However, sometimes it is vitally necessary. For example, during a long stay in a forest, your GPS navigator or satellite phone runs out of power. Or you are actively engaged in speleology, but during the descent into the cave your flashlight ran out. In situations of this kind, a miracle of technology comes to our aid - a portable Power Bank, also known as an external battery or portable charger.
An external battery allows you to charge electronic devices without connecting to an electrical outlet. The devices simply plug directly into the portable charger. Of course, the Power Bank itself must be charged from the network before this, but the capacity of this device usually lasts a long time. With this gadget you can charge it several times electronic devices. And it itself holds a charge for a very long time, which is extremely useful during long trips across areas without access to an electrical network. There are also external chargers for solar battery, which are highly valued by travelers and tourism enthusiasts. In general, there are quite a lot of different batteries of this type. Which to choose? Read on.
When it comes to buying inexpensive and high-quality electronic devices, many people immediately think about. This is quite understandable, because this online store has, perhaps, the widest range of goods among analogues, and the low prices of lots from Aliexpress are legendary. So if you decide to buy a reliable portable charger, there is no better place.
AliExpress presents mainly models from Chinese brands, which is not at all surprising. However, there are also products from foreign companies. Among the brands we can highlight Xiaomi, Huawei, Samsung, Pineng, Yoobao. There are also products from lesser known brands. It is worth noting that Xiaomi brand batteries have the best price-quality ratio. If you decide to buy a model produced by this company, then see for yourself.
Pros of buying chargers on AliExpress:
- the cost of goods is an order of magnitude lower than the prices of analogues from regular stores;
- the widest range;
- excellent product quality, confirmed by a huge number positive feedback, as well as high grades;
- buyer protection function, ensuring timely delivery of the order or refund in case of fraud or loss of the package;
- free shipping.
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