Compares the best Xiaomi external batteries. Which one to choose? Xiaomi external batteries High capacity, impeccable quality

The ADDROID company sells and repairs spare parts for smartphones, tablets, and laptops. You can order and restore cables, cameras, motherboards, batteries for Xiaomi phones. We have been on the market for 10 years and offer assistance from experienced craftsmen and consultants.

High-quality batteries for Xiaomi phones

Our company represents its service center, warehouse and store. We offer more than 3,000 spare parts that fit more than 20 brands, including batteries for Xiaomi smartphones:

• Suitable for Note 2, Mi 4, Mi5, 6 Pro, Mi Max, Redmi Note 3, Not 4X models;
• With a charge recovery time of 4 to 6 hours;
• With and without memory effect;
• Energy capacity 2900 mAh, 3500 mAh, 3600 mAh;
• Lithium-ion, polymer, nickel-cadmium.

We advise you to immediately contact a repair center as soon as you notice that your smartphone is quickly discharged or the battery is swollen. This may mean that the contacts have oxidized inside or moisture has entered. Replacing the battery is necessary for your convenience and safety of the phone. Masters service center ADDROID will help you find the exact cause of the problem and offer options for eliminating it. After purchasing a new battery or refurbishment of an old one, it is recommended to carry out several full charge cycles.

Both models in question are from a Chinese manufacturer Xiaomi, very popular and even fashionable nowadays, are not among the “hot” new products, however, among the considerable number of external batteries (power banks) that we have visited, we have not yet encountered samples of this brand, so we started working with them with considerable interest.

Mi Power Bank Pro 10000

Information support, characteristics, equipment

Unfortunately, at the time of testing there was no description of the model in the Russian-language section of the company’s website, so we used information from the global website.

True, there is a slightly different model index - PLM01ZM, and we got PLM03ZM, but perhaps the difference is only in the orientation towards certain regional markets, which is hinted at by the following fact: the instructions in the copy we received were in Chinese, as were the inscriptions on the packaging.

You can also visit the official one, where there is a fairly complete set of information in Russian, and you can also download Russian-language instructions (the translation is not perfect, but quite decent). True, such an index is not indicated there at all.

There are slight discrepancies in the information provided in these two sources and on the packaging, but they do not relate to the significant features of the model.

The packaging box is designed without any frills, but a “tax stamp” is glued to it: if you rub it with a coin or a fingernail in a gray square, you will see a 20-digit authentication code, by which you can check the authenticity of the product on the company’s official website. What to do if there is no confirmation is a separate question.

We have already said more than once that the off-system unit “amp-hour” can often be misleading, especially when compared: the capacity in ampere-hours is the same for a tiny power bank battery and a hundred times larger and heavier UPS battery. And this is not a matter of technology, it’s just that in relation to electric batteries and batteries it is better to talk about the energy they store in watt-hours, which also takes into account the voltage they provide.

IN in this case on the packaging and on the case two energy values ​​are given: for the lithium-polymer battery itself 38.5 Wh and reduced to a 5-volt output, which is used by the connected loads, but again using an off-system unit: “7100mAh 5.0V” . In terms of calculation, this gives an energy of 35.5 Wh - less than that of a battery, because voltage conversion cannot occur without losses, which in this case are not too large: the efficiency is 92%, in the descriptions a close value of 93% is found , and we will see what actually happens during testing.

The power bank claims to have protection against high voltage and overload (input and output), short circuit, overcharge and deep discharge. The use of a battery with a positive temperature coefficient (battery PTC) is also noted, and here it must be clarified: this is a set of technological measures aimed at producing lithium-ion battery cells with increased security when used in conditions other than normal. Probably, it is the presence of PTC that explains such wide temperature ranges of charge and especially discharge declared for this model.

Appearance, operating features

The power bank is designed in a flat style aluminum housing dark gray with lighter plastic caps on the ends; no other colors are currently offered. True, in the “Gallery” of the official online store two color options are mentioned, but apart from the designations (“grey 3” and “grey 4”), we did not find any difference in the photographs provided.

The thickness of the case walls is about 0.5 mm - it is impossible to measure more accurately without opening it, and no one gave us sanctions for such an action. The rigidity is quite high, and the resistance to mechanical stress clearly higher than that of plastic cases.

The materials available on the English-language resource speak of double anodizing, which can be considered a clear hint at the special durability of the coating. In addition, it mentions “CNC edge” (or “CNC-finished edges”); Perhaps the English-speaking reader will understand this abbreviation immediately, but we will explain: this means that the edges of the aluminum part of the body are processed on a CNC machine, and indeed, they have small neat chamfers, polished to a shine, which are absent from the next (cheaper) participant review.

Thickness and other dimensions approximately correspond to those of modern smartphone, the screen diagonal of which is about 5 inches, that is, holding a “sandwich” of these two gadgets connected by a charging cable with one hand will be quite convenient. But we must take into account that one device may well scratch another, and it is better to equip one of them (or both) with a case, good for Mi Power Bank Pro 10000, such accessories are quite affordable, and in a wide range.

The cable is the only thing included. Its length is small, just under 20 cm from connector to connector, and in the aforementioned “sandwich” it will not be a very disturbing part. Another thing is that for other methods of mutual placement mobile device and batteries (for example, the first in your hand, the second in your chest pocket), as well as in some cases of connecting to a charger, such a cable may be too short.

At one end of the case there are only inscriptions, including those explaining the main parameters, and the connectors, along with controls and displays, are concentrated on the opposite.

There are two connectors: output USB A(f) and Type-C, used to recharge the power bank’s own battery. For universal connections, the supplied cable has a completely normal USB A(m) connector at one end, and a Micro-USB connector at the other end plus an adapter to Type-C, connected by a flexible leash that will prevent the adapter from getting lost.

On the one hand, it is very convenient, but on the other hand, you will have to carry this cable with you all the time or take care of purchasing such accessories in stock: there is not yet an abundance of cables with Type-C either in household supplies or in offices. In addition, you need to be careful: the connector and adapter connected together create a double lever compared to a single connector, that is, it will be easier to pull them out of the input port by accidental and careless action (or even break something).

By the way, some descriptions talk about a flat USB-Micro-USB cable and a freely detachable adapter to Type-C. We received a round cable (it is a little stiff) and with an adapter on a leash.

The presence of only one output connector in an external battery with such an impressive capacity can only be explained by the desire of the developers to make the device as compact as possible. You can also look from a purely practical point of view: do you often need to recharge two gadgets at once when you are away from outlets? If yes, and certainly at the same time, and there is no way to wait, then, obviously, this product from Xiaomi is not for you.

Another question arises: why is the Type-C connector used specifically as an input? It is reliable and convenient (because it is symmetrical, that is, it does not need to be oriented in a certain way), but the owner will connect loads to the power bank more often than the external battery itself to the charger. It is also designed for very significant currents by the standards of USB connections, and the speed of charge recovery in the connected gadget is a higher priority compared to the power bank battery charge.

Another thing is that the fleet of mobile devices, not only equipped with a connector USB Type-C, but also capable of using most of its capabilities, is still small, but this is only a matter of time, and not the most distant one. Therefore, it would be more logical to assign USB A(f) as an input, and Type-C as an output, and even better, make both connectors Type-C - perhaps then a third one of the same type would fit.

In general, the Mi Power Bank Pro 10000 model turned out to be very compact and elegant, but still a little controversial.

Other organs include an indicator with four white LEDs and a button. If the indicator functions in a completely normal way (with one exception, which is discussed below), then the purpose of the button is somewhat different from what is usual in other models.

So, usually the output (or outputs) of a power bank turns off after a short time when there is no load, and it can only be reactivated by pressing a button. Of course, such a mechanism must have a certain threshold, below which the load is considered absent. But for a number of gadgets like Bluetooth headsets, the normal charge current is very small, and therefore it may well be below this threshold, and you simply won’t be able to charge them.

And in this model there is not only automatic detection of the presence of a load (we connect the device - voltage is supplied to it without pressing a button), but it also provides for working with extremely low output currents: you need to press the button twice, and then the output will not turn off for two hours. True, the Russian-language instructions we downloaded do not say this.

Otherwise, the button works the same as in other external batteries: pressing it once will allow you to check the remaining charge by the number of indicator LEDs that light up at the same time, and in some cases also reset the emergency state after the protection has tripped. If this does not help, then you can try a short-term connection to the charger - we encountered something similar when testing other power banks.

Testing

Charge

The charger was connected to the charger using the supplied cable, during the process the LEDs flashed evenly, their number allows us to judge the charge level.

When connected to a conventional charger with a maximum current of 2.1 A, the consumption was initially 1.0 A, and could increase to 1.1 A in the process; if you turn it on for additional charging when the discharge is incomplete, the current can reach 1.15-1.17 A, but for a short time - then it drops again to 1 A.

Charging in this mode takes a long time: 8.5-9 hours, and only after about an hour the current begins to decrease. The body of the power bank heats up very little.

When all four LEDs light up, the input current is not zero - it remains at 50-70 mA for a very long time. Of course, we did not wait for days for the input current to zero, but this did not happen in a few hours. It’s hard to say how this not too large, but noticeable current is consumed, it’s clearly not to power four tiny LEDs; one might assume that this is a maintenance charge, but for lithium-ion batteries this is not usually practiced in constant mode.

Using a charger that supports Smart Charge modes gives a more pleasant picture: the initial current is 1.6 A, it changes a little during the process, but for a long time it is in the range of 1.4-1.6 A; heating is observed, but weak - by 6-8 degrees relative to the room temperature. A noticeable decrease in current began only after 6 hours, and the average charging time was 7 hours 15 minutes. Less than from a regular source, but still a lot.

We also tried charging from a source that supports Quick Charge technology (QC 2.0/3.0). When an external battery was connected, its output switched to 12-volt mode, the current remained at 1.5-1.6 A for a long time, and after 1 hour 45 minutes it began to decrease - at first little by little, after 2.5 hours (from the start of charging) at a faster pace. The average time was 3 hours 30 minutes, that is, the charge was restored two and a half times faster!

After an hour and a half, the heating reached 11-12 degrees relative to the initial temperature, and did not increase further.

In the last two cases, upon completion, the current was reset to zero.

Discharge

When discharged, the indicators do not light up constantly, like most other external batteries, but flash at long intervals. The number of LEDs that light up indicates the remaining charge - everything is quite normal here.

Measurement data for normal mode is shown in the table.

In our reviews of power banks, we calculate efficiency as the ratio of the data obtained for the energy supplied to the load to the declared value. We introduced this conditional concept for the convenience of comparing models of external batteries that we have visited with different declared capacities, and usually it is given only for the battery, and so that the comparison is correct both with other models and with Quick Charge modes for Mi Power Bank Pro 10000 ( information about the conversion efficiency for them is not provided in official sources), the last column of the table also used data from a lithium-polymer battery, that is, 38.5 Wh.

The obtained values ​​can be considered excellent result, actually a record one, especially because they change little in wide range loads, including those significantly exceeding the declared maximum. Moreover, in all dimensions output voltage very stable and differs little from the standard five volts for USB.

The protection is triggered when overloads are close to one and a half times, that is, the overload capacity in the long term is at least 35%, and within a few minutes it can be at the level of 45%.

We also tested Quick Charge modes, which we set using a special trigger. For QC 2.0 you can choose 5, 9 and 12 volts, for QC 3.0 the maximum voltage is 12.4 V (remember: in QC 3.0 changes are made in steps of 0.2 V).

Two measurements were made in QC 2.0 with the maximum declared currents for voltages of 9 V and 12 V.

As you can see, conversion in QC modes occurs with significantly greater losses, and if for the 9-volt mode the efficiency remains relatively high, then for the 12-volt mode it is already at a very average level. That is, for accelerating the charging of a connected gadget, you have to pay for the inefficient use of power bank battery energy.

Naturally, long-term operation under a significant load cannot be done without heating. At first, the part closest to the connectors heats up more, but, thanks to the good thermal conductivity of the aluminum case, the temperature soon becomes almost the same over the entire surface.

The maximum we recorded was when the output was operating in 12-volt mode at a load of 1.5 A: by the time it was turned off, the heating was 19-20 degrees relative to the room temperature, that is, the power bank became very, very warm.

We also tried working with very light loads. Pressing the button once connects the output, but for a short time: about 25 seconds for currents of 20 mA or less; as the load increases to 70-80 mA, the voltage can last for 2.5-3 minutes, but a shutdown will still occur.

If you press the button twice in a row with a minimum interval, the output is connected even in the absence of load. A sign of transition to this mode is alternate short-term blinking of the LEDs. We did not check whether this regime would last the promised two hours - we only had enough patience for 30 minutes. You can switch off early by pressing the button once.

Mi Power Bank 5000

Information also had to be obtained from the global website, since this model was not available in the Russian-language section of the manufacturer’s website at the time of writing the review. The model index NDY-02-AM indicated there coincided with that shown on the case and packaging.

Characteristics, appearance, equipment

The declared parameter values ​​are given in the table.

Both models are very similar both in appearance and design. Only the aluminum body of the Mi Power Bank 5000 is lighter - not gray, but rather silver, and the plastic on the end caps is milky white. There is no beautiful chamfer on the edges, but it looks like the aluminum layer itself is a little thicker - we cannot say this definitely without accurate measurements, and we were not allowed to open this model either.

At one end there is the same set of organs: two connectors, four indicators white and one button. Only this time the input is not Type-C, but Micro-USB, like the vast majority of similar products.

Both models are similar in size, the thickness of the Mi Power Bank 5000 is 20% smaller - it seems significant, but in reality these almost three millimeters of difference are noticeable mainly in direct comparison. But the weight of the younger one is almost a third lighter, and you can feel it even with your hand, without any measurements.

The design of the packaging is even simpler: if the Mi Power Bank Pro 10000 had at least an image of the power bank, then for this model the front side of the box contains only the company logo (the authentication sticker is on the other side). But the inscriptions both on the packaging and on the “blind” end of the case were in English, and we received the manual in Russian.

Once again, only the cable is included - this time flat, with USB connectors A(m) and Micro-USB. Length 17 cm, no adapters.

The presence of protection against overload and excess voltage, short circuit, overcharge and deep discharge is declared. The descriptions talk about auto-detection of the presence of a load, that is, the button is also used not to connect an output, but only to check the charge level, but this time there are no instructions about working with extremely small loads - you will have to check in practice how things are.

The model also uses a positive temperature coefficient battery, so the operating temperature range is equally wide.

The “reduced to five volts” capacity in milliamp-hours is not indicated in this case, but it can be easily calculated by yourself using the algorithm we presented above. Although the specification does not contain a line for conversion efficiency, a value of 93% is found in the descriptions.

Testing

Charge

We tried charging the power bank not only from different chargers, but also using different cables, fortunately we didn’t have to search for them for a long time.

We started with the complete one, connecting it to a charger with support for Smart Charge (PowerIQ) and a maximum output current significantly exceeding 2 A (in reality, and not just according to the indicated parameters). The initial charge current was a pleasant surprise: 1.7-1.75 A, and soon even increased to 1.85-1.9 A, and began to decrease after two and a quarter hours. Total time was 3 hours 15 minutes, that is, it fully corresponds to the declared value. At the same time, the case warmed up a little, by 9-10 degrees relative to the initial state.

But the point is not at all in Smart Charge, but in the cable: if you connect a standard cable to the most ordinary adapter with an “honest” maximum of 2.1 A, then the situation changes little: the current starts at 1.7 A and for a long time remains at the level of 1.6-1.75 A, a decrease is observed after two and a half hours, and the total time is 3 hours 45 minutes.

If the cable is replaced with another one, and not quite a “left one”, even with a designated cross-section of 28AWG (0.081 mm²), and not an exorbitant length - 95 cm, then the current under the same conditions will not exceed 0.8-0.85 A , starting to decline in the last 50-55 minutes. The total charging time was 5 hours 40 minutes.

With a third cable, a meter long and without any “identification marks”, from a conventional 2.1 A charger the current did not exceed 0.45-0.5 A, and therefore charge restoration took 9 hours 45 minutes, the current and In this case, it began to decline in the last hour.

Of course, the values ​​​​indicated for the charging time are approximate, because the preliminary discharge was carried out with different currents to fill out the table below, and low currents discharge the battery more strongly. However, this may explain the difference of tens of minutes, but not several hours.

There are no miracles here. We measured the voltage drop on these cables: for the first (standard) at a current of 1.0 A it was slightly more than 0.1 V, for the second it was 0.45 V, which agrees well with the normalized resistance for 28AWG of 0.213 Ohm/m (v the cable has a pair of wires almost a meter long), and we can assume that the cross-section of the wires of the standard cable is the same, it’s just about five times shorter. On the third, almost 0.8 V dropped - the same amount less compared to the nominal five volts would have been supplied to the input of the power bank at this current; It’s surprising that with such a cable the device was charged at all.

The built-in indicator is quite accurate: as soon as the last LED lights up continuously, the current becomes zero.

Discharge

The behavior of the indicators is the same as that of the Mi Power Bank Pro 10000: not constantly lit, but briefly blinking.

Voltage at no load or at low output currents 5.1 V.

The measurement data is given in the table.

When calculating the efficiency, we took the value declared for the energy of the built-in battery to be 18.5 Wh. The results were quite good, especially at currents up to 1 A, but overall not as outstanding as the previous model. However, here too it should be noted the high stability of the output voltage, despite the annoying drop at the end of the discharge with a current of 0.5 A: if you count, it lasted less than 5% of the total time.

The overload capacity is also quite good: the power bank confidently operates with an overload of up to 15% without deteriorating the output parameters. True, the output at currents above the stated maximum may not always be automatically connected; sometimes you have to “spur” the device with a button. Starting from 2.5 amperes, it is not possible to make the device work at all.

At low and medium currents, the heating of the case is insignificant; at 2.1 A in an hour and a half it heated up by 13-14 degrees compared to initial state, then the temperature remained virtually unchanged. The same heating occurred just before the shutdown at a current of 2.4 A.

The function of long-term connection of an output by double pressing a button is not implemented in this model, but otherwise a power bank with light loads behaves in the same way as the product described first: a single press will turn on the output voltage, but only for a while. The only thing that differs is the proportion between the load size and the time before turning off after pressing the button: at very low currents it takes 20 seconds, at 60-70 mA just over a minute, at 80-90 mA it already works for a very long time (waited 10 minutes, does not turn off).

Quick Charge support is not stated in the description, but we still spent a couple of minutes checking: the trigger we used could not enable either QC 2.0 or QC 3.0.

Bottom line

We reviewed two samples of “nutritional” products Xiaomi, briefly the impressions are as follows.

Mi Power Bank Pro 10000— the model is very stylish, compact and with excellent parameters (the results of our tests were sometimes even better than promised in the specifications), but a little contradictory. One of the contradictions, as often happens, is related to the advantages: the battery capacity is very large for such dimensions, and the maximum load current is also more than decent, but there is only one output connector - you cannot connect two gadgets at the same time. The purpose of the output connectors is also puzzling: it would be more logical to make Type-C the output connector and USB A(f) the input connector.

Mi Power Bank 5000 smaller, simpler, but also cheaper. Although this is not outstanding in terms of properties, it is quite a good product that corresponds to the declared parameters.

It must be said that the list of power banks produced by the company is not limited to these two models, and will certainly be expanded in the future. We can hope that the others will too external batteries brand is at least as good as the younger one reviewed.

As a general rule, when purchasing a portable battery for your mobile device, experts advise avoiding cheap models, especially those whose specifications seem too good to match the price they sell for. But from time to time, products appear that disprove this rule. An example of this is the 10400 Power Bank.

Inexpensive and powerful

Like smartphones from Xiaomi (and not only), the price of the device is much cheaper than similar offerings from competitors. In comparison, a branded 10,000mAh battery typically costs around $100. How much will it cost Xiaomi Power Bank for 10400 mAh? Only $13.99.

Of course, there are other available and powerful energy banks. Taobao regulars will confirm that inexpensive external batteries abound in the Chinese online market (for example, Romoss), but their delivery and warranty can be problematic.

So, is the Xiaomi Mi 10400 Power Bank worth the money?

Design overview

The following can be said about the design of the energy bank, in addition to the fact that the $14 product looks and is put together very well. The main body is CNC-cut from a single piece of aluminum and anodized to give it a slightly textured surface for added grip. Xiaomi claims that the coating is not damaged by water, does not corrode and can withstand a load weighing 50 kg (although users are not advised to check this). The surface has also passed the 300-time abrasion test. The metal case allows you to quickly get rid of excess heat, which extends the battery life.

The only plastic parts of the Xiaomi Mi 10400 Power Bank are the top and bottom ends of the device. At one end there is a standard USB port for output, Micro-USB connector for input, 4 LEDs and a round button for checking capacity. Specifications and regulatory symbols are printed on the other end. Xiaomi representatives are confident that the buttons and ports are self-explanatory, so they didn’t even bother to label them.

There is no need for a power switch as the battery activates automatically and charges the device when it is connected using USB cable. The purpose of the capacity check button is to turn on LED indicators, which will tell you how much charge is left. In short, each indicator corresponds to 25% charge. When the battery is fully charged, all LEDs light up and do not blink. The brightness of the indicators is sufficient - not too bright to be blinding at night, and not too dark to be invisible in bright light.

Scope of delivery

Xiaomi Mi Power Bank 10400 Silver is sold together with a white Micro-USB flat cable 16 cm long and a user manual. Considering that the device being charged shouldn't be too far away, this is one of the few cases where such a short length makes sense. Users love the flat cable because the shape prevents it from getting tangled easily. not included.

Reliability and durability

Some more technical data. According to Xiaomi, the device's Micro-USB port can withstand 5,000 cycles of use, and the larger USB connector is designed for 1,500. Xiaomi even presented electrostatic discharge test results: 8 kV for contact and 12 kV for air. It is obvious that the manufacturer is trying to do everything possible to assure potential buyers that the Xiaomi Mi 10400 Power Bank is a quality product, despite its low cost. In fact, the above data is not all. The device has been tested in conditions of low and high temperatures, high humidity, temperature fluctuations and in a salt chamber.

The company claims that the portable battery comes with 9 levels of protection. These include a mechanism for controlling heating temperature, input and output voltage and current, preventing short circuits, overcharging or discharging, and the ability to reboot in unstable external conditions.

Performance

The model comes with a lithium-ion battery manufactured by LG or Samsung with a capacity of 10.4 Ah, which at a voltage of 3.6 V corresponds to 37.44 Wh. As follows from the experts' explanations, due to the loss of power during voltage conversion and circuit resistance, the number of recharges that the energy bank provides is not determined by simply dividing 10,400 mAh by the battery capacity of the device being charged. According to Xiaomi, the Mi Power Bank 10400 mAh allows you to charge the iPhone 5s 4.5 times, 2.5 - Mi 3, and one and a half - iPad tablet Mini. According to user reviews, these numbers seem to be quite accurate, as they were able to charge the iPhone 5s, which has a 1560 mAh battery, four times and still had some charge left.

Thus, the efficiency of the device is about 93%, which gives a net 7000 mAh. This is much more than what most power banks sold in the market offer.

Charging speed

In addition, owners are very satisfied with the power bank's input and output current strength. To be precise, the device is capable of outputting up to 2.1A, which is great for tablets and smartphones that can take more than the standard 1A. Even the charging input port is rated for currents up to 2A. This is surprising for such a cheap power bank. because there are many expensive batteries on the market that are not capable of taking more than one and a half amperes. In other words, Xiaomi Mi Power Bank 10400 mAh charges quite quickly. According to the manufacturer, this takes about 5.5 hours using a two-amp adapter or about 10 hours with a 1 A adapter.

The device is capable of charging and charging at the same time. Few power banks offer this feature, and it is necessary when the number of available outlets is limited - for example, when traveling.

What's inside?

Users who could not come to terms with the fact that a high-quality external battery could cost so little were able to verify this by looking at what was inside it. The device consists of four batteries manufactured by LG, each of which has a capacity of 2600 mAh, for a total of 10400 mAh. According to the manufacturing company, the energy bank uses Texas Instruments controllers. Indeed, the external battery is controlled by a TI BQ24195 chip. The circuit also uses an 8-bit microcontroller from South Korea, ABOV.

Advantages and disadvantages

So is it possible to recommend the Xiaomi Mi Power Bank 10400 external battery? Absolutely yes. And not just because it's cheap - the energy bank is inexpensive and does its job well. For a battery with a capacity of 10.4 Ah, it is compact, provides an output current of 2.1 A, can be quickly charged at two amps, and the components used look convincing.

Does the device have any disadvantages? If we nitpick the little things, we can say that for an external battery of such a high capacity it is strange to have only one output. This means that it is not possible to charge more than one device at the same time. Again, you can always buy another portable power bank and connect it with a rubber band - you get two ports and a 20,800 mAh bank for only $28! Secondly, the package does not include a power adapter, which can be a problem if you don't have extra. Lastly, iOS users will have to find their own Lightning cable.

Finally, if for some reason 10400 mAh seems too much, then you can purchase an external battery from the same manufacturer with a capacity of 5200 mAh. It's smaller and appears to have similar components, except the number of batteries is reduced to two and the output can only be 1.5A.

External battery Xiaomi Mi Power Bank 5000mAh - lithium-ion battery in a thin, elegant aluminum case, resistant to moisture, rust and corrosion.

Portable charger from a famous Chinese brand

Real branded portable chargers of this brand are made in China and come in packaging with the company logo and a special security code security, which can be checked at any time on the official Xiaomi verification website.

The advantages of this model include:

• Compact size with a fairly large battery (5000 mAh).
• Protection of the chipset and electrical circuit from overheating, overvoltage and current surges.
• The device is compatible with most smartphone models Android based and Windows.

The charger port automatically detects the required voltage and adapts to the phone. This ensures fast and high-quality charging of the smartphone in any situation. The full charge of the device itself takes 4-5 hours. It is not recommended to disassemble it yourself charger or try to open its case.

Unfortunately, the product is not currently available for purchase. You will be able to buy an “external battery Xiaomi Mi Power Bank 5000 mAh Silver” in Moscow upon admission. Sign up for an alert and we'll let you know the price when it's back in stock.

Your new assistant

10000mAh | Two USB outputs | Two-way fast charging

TWO USB OUTPUTS

capable of charging TWO DEVICES AT THE SAME TIME

Updated design. Xiaomi Mi Power Bank 2i 10000 is equipped with Dual USB output without compromising appearance, now your friends can recharge at the same time as you.

HIGH SPEED CHARGING ON THE GO!

The brand new 10000mAh Mi Power Bank 2i is a compact charger; it has the ability to simultaneously connect two phones with the guarantee that your gadgets will be properly charged in a minimum amount of time.

EASY TO WEAR!

14.2MM THIN, WEIGHS ONLY 245G

10000mAh Mi Power Bank 2i is ultra-thin and quite light. Throw it in your bag or backpack, and you will understand how useful it can be at the most crucial moment!

FEELING OF RELIABILITY IN YOUR HAND!

ANODIZED ALUMINUM ALLOY CASE + simplicity and ease of use.

The aluminum body is relatively lightweight, but at the same time it is able to withstand impacts when dropped. The design of Mi Power Bank 2i 10000mAh is stylish and laconic.

HIGH QUALITY LITHIUM POLYMER BATTERIES

CHARGING/DISCHARGING EFFICIENCY has become more optimized

Lithium polymer batteries have become even safer, and the charge conversion rate has improved. Xiaomi engineers redesigned the electronic filling, after which Mi Power Bank 2i 10000mAh became more energy efficient.

Mi Power Bank 2i 10000mAh has an actual capacity of 6500 mAh and provides a conversion rate of over 90%. Current charging modes: 5V/2A, 9V/2A and 12V/1.5A. You can easily connect and charge any smartphones and tablet computers.

LOW CURRENT CHARGING

By pressing the power button twice you will immediately activate the low-current charging mode; it is in this mode that you need to charge a wireless headset or fitness bracelet. And one more advantage: when the battery reaches 85-90% of its capacity, the Mi Power Bank 2i 10000mAh will automatically switch to gentle charging mode.

SAFE AND QUALITY BATTERY

The device operates on microcircuits with high-precision resistive-capacitive components, which improves safety of use and increases efficiency. This device is equipped with 9 degrees of protection.