Both models under consideration by the Chinese manufacturer Xiaomi, which is very popular and even fashionable now, do not belong to "hot" novelties, however, among a considerable number of external batteries (power banks) that have visited us, samples of this brand have not yet been met, 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 only difference is in focusing on certain regional markets, which is also hinted at by the following fact: the instruction in the copy we received was 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 besides, you can download the Russian-language instruction (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 essential features of the model.

The packaging box is decorated without any frills, but an "excise stamp" is glued to it: if you rub it with a coin or fingernail in a gray box, you will see an authentication code of 20 digits, by which you can check the authenticity of the product on the official website of the company. What to do if there is no confirmation is a separate question.

We have said more than once that the off-system ampere-hour unit can often be misleading, especially when compared: the capacity in ampere-hours is the same for a tiny powerbank battery and a hundred times larger and heavier UPS battery. And it's not about technology, it's just that in relation to electric accumulators and batteries, it is better to talk about the energy they store in watt-hours, while taking into account the voltage they provide.

In this case, two energy values ​​are given on the package and on the case: 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 recalculation, 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 at the level of 92%, in the descriptions there is a close value of 93% , and what is actually happening, we will see during testing.

The powerbank is declared to have protection against high voltage and overload (at the 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 is necessary to clarify: this is a set of technological measures aimed at manufacturing lithium-ion battery cells with increased safety when operating in conditions other than normal. Probably, it is precisely the presence of PTC that explains such wide temperature ranges of charge and especially discharge, declared for this model.

Appearance, features of operation

The powerbank is made in a flat aluminum case of dark gray color with lighter plastic plugs at 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 ("gray 3" and "gray 4"), we did not find any difference in the photographs given.

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

In the materials available on the English-language resource, it is said about double anodizing, which can be considered a clear hint of the special durability of the coating. In addition, it mentions "CNC edge" (or "CNC-finished edges"); Perhaps an English-speaking reader will understand such an abbreviation right away, but we will explain: this means that the edges of the aluminum part of the case are machined on a CNC machine, and indeed - they have small neat chamfers, polished to a shine, which the next (cheaper) participant does not have review.

Thickness and other dimensions roughly correspond to those of modern smartphone, the screen diagonal of which is about 5 inches, that is, it will be quite convenient to hold a "sandwich" of these two gadgets connected by a cable for recharging with one hand. But it must be borne in mind that at the same time one device may well scratch another, and it is better to equip some of them (or both) with a cover, since for the Mi Power Bank Pro 10000 such accessories are quite affordable, and in a wide range.

The cable is the only one included. Its length is short, a little less than 20 cm from connector to connector, and in the mentioned "sandwich" it will not be a very disturbing part. Another thing is that for other methods of mutual placement of a mobile device and a battery (for example, the first in the hand, the second in the breast pocket), as well as in some cases of connecting to a charger, such a cable may be too short.

On one end of the case there are only inscriptions, including those explaining the main parameters, and the connectors, together with the controls and indicators, are focused on the opposite.

There are two connectors: output USB A (f) and Type-C, used to recharge the powerbank's own battery. For versatility of connections, the complete cable at one end has a completely normal USB connector A (m), and on the other - a Micro-USB connector plus an adapter to Type-C, connected by a flexible leash that will not let the adapter get lost.

On the one hand, it is very convenient, but on the other, you will have to carry this cable with you all the time or take care of purchasing such accessories in stock: the abundance of cables with Type-C has not yet been observed either in home supplies or in offices. In addition, you need to be careful: the connector and adapter connected together create a lever that is doubled in comparison with 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 speak of a flat USB-Micro-USB cable and a freely detachable Type-C adapter. We got a cable with a round cross-section (it is a bit harsh) 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: how often do you need to recharge two gadgets at once when you are away from outlets? If yes, and certainly at the same time, and you can't wait in any way, then, obviously, this product from Xiaomi is not for you.

Another question arises: why is the Type-C connector used exactly 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 the loads to the powerbank more often than the external battery itself to the charger. It is also designed for currents that are very significant by the standards of USB connections, and the speed of charge recovery in a connected gadget is of higher priority compared to charging a powerbank battery.

Another thing is that the fleet of mobile devices, not only equipped with a USB Type-C connector, 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 designate USB A (f) as an input, and Type-C as an output, or even better, make both connectors Type-C - perhaps then the third one would fit.

All in all, the Mi Power Bank Pro 10000 is very compact and elegant, but still a bit 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 that which is usual for other models.

So, usually the output (or outputs) of a power bank in the absence of a load is turned off after a short time, and it can only be activated again 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 it will simply not be possible to charge them.

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

Otherwise, the button works in the same way as in other external batteries: a single press 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 is triggered. If this does not help, then you can try a short-term connection to the charger - we have encountered similar things when testing other power banks.

Testing

Charge

They were connected to the charger with a complete cable, during the process the LEDs blink evenly, their number allows you to judge the charge level.

When connected to a conventional charger with a limiting current of 2.1 A, the consumption at first was 1.0 A, in the process it could increase to 1.1 A; if you turn it on for a recharge with an incomplete discharge, the current can reach 1.15-1.17 A, but for a short time - then it drops again to 1 A.

The charge in this mode takes a long time: 8.5-9 hours, and only in about an hour the current begins to decrease. At the same time, the case of the powerbank heats up very little.

When all four LEDs light up, the input current is not zero - it stays at 50-70 mA for a very long time. Of course, we did not wait for days for the input current to be zeroed, but for several hours this did not happen. At the expense of what this, albeit not too large, but noticeable current is consumed, it is difficult to say, obviously not for powering four tiny LEDs; one would assume that this is a maintenance charge, but for lithium ion batteries this is not usually done on a continuous basis.

Using a charger that supports Smart Charge modes gives a more pleasant picture: the initial current is 1.6 A, it changes slightly in 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 a regular source, but still a lot.

We have also tried charging from a source that supports Quick Charge technology (QC 2.0 / 3.0). Its output, when an external battery was connected, switched to a 12-volt mode, the current was kept at the level of 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 recovered two and a half times faster!

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

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

Discharge

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

Measurement data for normal mode are shown in the table.

We calculate the efficiency in our reviews of powerbanks as the ratio of the data obtained for the energy supplied to the load to the declared value. Such a conventional concept was introduced by us for the convenience of comparing models of external batteries with different declared capacities that we have visited, 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 on the conversion efficiency for them is not given in official sources), in the last column of the table, data from a lithium-polymer battery were also used, that is, 38.5 Wh.

The obtained values ​​can be considered an excellent result, in fact, a record, especially because they change little over a wide range of loads, including significantly exceeding the stated maximum. In addition, in all dimensions output voltage very stable and does not differ much from the standard five volts for USB.

The protection is triggered at overloads 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 tried the Quick Charge modes that we set with special trigger... For QC 2.0, you can select 5, 9 and 12 volts, for QC 3.0 the maximum voltage is 12.4 V (recall: in QC 3.0, changes are made in 0.2 V steps).

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

As you can see, the conversion in QC modes goes with significantly higher 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 charge of the connected gadget, you have to pay with the ineffective use of the energy of the powerbank battery.

Naturally, long-term work at a significant load is not complete without heating. At first, the part closest to the connectors heats up more, but due 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 of shutdown, the heating was 19-20 degrees relative to the room temperature, that is, the powerbank became very, very warm.

We also tried working with very light loads. A single press of the button connects the output, but for a short time: about 25 seconds for currents of 20 mA or less, with an increase in the load to 70-80 mA, the voltage can be kept for 2.5-3 minutes, but the disconnection will still occur.

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

Mi Power Bank 5000

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

Characteristics, appearance, equipment

The declared values ​​of the parameters are shown in the table.

Both models are very similar both in appearance and design. Only the aluminum case 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 seems that the aluminum layer itself is a little thicker - we cannot assert this unequivocally without accurate measurement, and we were not allowed to open this model either.

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

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

The packaging design is even simpler: if the Mi Power Bank Pro 10000 had at least an image of a powerbank, 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 "blank" end of the case were in English, and we got the manual in Russian.

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

The presence of protection against overload and overvoltage, short circuit, overcharge and deep discharge is declared. The descriptions say about the autodetection of the presence of a load, that is, the button is also used not to connect the output, but only to check the charge level, but there are no indications about working with extremely low loads this time - you will have to check in practice how things are.

The model also uses a PTC battery, so the operating temperature range is just as wide.

The capacity "reduced to five volts" in milliampere-hours is not indicated in this case, but it is quite possible to calculate it yourself using the above algorithm. Although there is no line for conversion efficiency in the specification, 93% is found in the descriptions.

Testing

Charge

We tried to charge the powerbank not only from different chargers, but also using different cables, since we don't have to look for them for a long time.

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

But the point is not at all Smart Charge, but in the cable: if you connect with 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 stays at the level for a long time. 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 "left", even with the designated cross-section 28AWG (0.081 mm²), and not of the prohibitive 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 charge time was 5 hours 40 minutes.

With the third cable, a meter long and without any "identification marks", from a conventional charger of 2.1 A, the current did not exceed 0.45-0.5 A, and therefore the charge recovery was delayed for 9 hours 45 minutes, the current was 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 the table below, and small currents discharge the battery more. However, this may explain the difference in tens of minutes, but not at all in 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 0.45 V, which is in good agreement with the resistance normalized for 28AWG of 0.213 Ohm / m (in cable, a pair of wires is 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 fell - by the same amount less than the nominal five volts would have been supplied to the input of the powerbank at such a current; it is 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 is constantly lit, the current goes to zero.

Discharge

The behavior of the indicators is the same as that of the Mi Power Bank Pro 10000: not constant burning, but short blinking.

Voltage without load or at low output currents 5.1 V.

The measurement data are given in the table.

When calculating the efficiency, we took the value of 18.5 Wh declared for the energy of the built-in battery. The results were good, especially at currents up to 1 A, but overall not as outstanding as in the previous model. However, here, too, the high stability of the output voltage should be noted, 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 good: the powerbank works confidently with an overload of up to 15% without degrading 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 get the device to 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 warmed up by 13-14 degrees compared to the initial state, then the temperature practically did not change. The same heating was observed just before the shutdown at a current of 2.4 A.

Long-term output connection function double tap The buttons are not implemented in this model, but in other respects the powerbank with low loads behaves the same as the product described by the first: a single press will turn on the output voltage, but only for a while. The only difference is that the proportion between the load and the time before shutdown after pressing the button: at very low currents, 20 seconds, at 60-70 mA a little more than 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.

Outcome

We looked at two samples of "nutritious" products Xiaomi, in short, 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 specification), but a little contradictory. One of the contradictions, as often happens, is associated with the merits: 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 output, and USB A (f) input.

Mi Power Bank 5000 smaller, simpler, but also cheaper. This is, albeit not outstanding in properties, but quite solid product that meets the declared parameters.

I must say 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. Hopefully, the rest of the brand's external batteries are at least as good as the younger one reviewed.

Fast charging and improved work efficiency

Smartphone will charge quickly

The external battery will automatically recognize the connected device and apply the technology fast charging... To charge the improved version Xiaomi note, it takes only 1 hour 55 minutes, which is 20% less than the previous generation. It is also possible to charge the device itself using the 5.0V-2.0A ， 9V / 12V-18W input, thus significantly shortening the charging time.

It doesn't matter whether it is day or night

Increased charger capacity

When you go to sleep, it is still working. The real energy capacity of the battery of the autonomous charger Xiaomi devices 2 is 6900 mAh, which is 10% more than the previous generation. A reliable and stable charger will extend the operating time of your smartphone, tablet or digital camera. Despite the fact that the amount of electricity has remained the same, now you can charge more gadgets. The real energy capacity of the battery is 6900 mAh. Charge conversion rate for various devices reaches 93%

High-density lithium polymer battery

More efficient charging and performance compared to the previous generation

The Xiaomi mi Power bank 2 uses an original ATL lithium polymer battery. The advanced chipset not only makes the charger safer, but, complemented by high-precision RC sensors, greatly improves efficiency and stability.

Easily adapts to charged devices

Maintains charging at minimum current

By double-tapping the power button, you can turn on a two-hour charging mode at minimum current, with which you can charge wireless bluetooth headphones or bracelet xiaomi... You no longer have to worry about how to charge small gadgets at minimum current.

High quality microcircuit

Circuit protection

In the manufacture, battery charging-discharging ICs from Texas Instruments and Zimi are used, which are not only provided with nine types of protection against short circuits, but in general, significantly increase the performance of the charger.

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* Statistics shown above are the result of testing by Zimi. If the objective testing environment changes, the result may differ. The picture shows the process charging xiaomi 5, for normal operation of the charger, you will need to connect the plug Micro USB with Type-C adapter.

Notes (edit)

1. When the device is charging, the indicators flash alternately. After the end - they all burn together, without blinking
2. Low current mode is turned on by double pressing the button and turns off after an hour. Forced shutdown can be done by pressing the button once
3. The device turns off automatically, the button for shutdown does not respond

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A novelty that will not disappoint you!

New from Xiaomi - Second Generation Power Bank! The device has a long service life, two-way charging, compatibility with any modern gadgets.
You can use Xiaomi Power Bank 2 with mobile devices, tablets, music players, photo and video cameras, and other gadgets that support the USB interface.

Design innovations

Xiaomi Mi Power Bank 2 is made in a new design - the battery has slim body, slightly rounded corners - it fits in a trouser pocket or in a bag. Manufacturing material - high-strength aluminum. Anodizing technology was used in the production, thanks to which the charger received high degree strength, not afraid of corrosion and other negative phenomena.

Thanks to its well thought-out shape, rounded corners and minimal thickness, the device is pleasant to use and fits perfectly in the hand!

High capacity, flawless quality!

Mi Power Bank 2 is a capacious charger, the charge of which will be enough to power several phones. For convenience, there are LED indicators on the case, notifying the user about the need to connect an external battery to a power source.

One of the main advantages of a portable charger is support for the fast charging option - you can charge your gadget in a matter of hours. Also, the device has nine levels of protection against short circuit, overheating, voltage surges, etc.

You can buy Xiaomi Mi Power Bank 2 in "Rumikom" - in the online store, where only original products from Chinese brand! We offer an affordable cost for devices, as well as prompt delivery to your city!

show in full

The Xiaomi Mi Power Bank 5000mAh is a lithium-ion battery in a slim, sleek aluminum casing that is resistant to moisture, rust and corrosion.

Portable charger from famous Chinese brand

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

The advantages of this model are:

• Compact size with a large enough battery (5000 mAh).
• Chipset and circuit protection against overheating, overvoltage and current surges.
• The device is compatible with most models of smartphones on Android base and Windows.

The charger port automatically detects the required voltage and adjusts to the phone. This ensures fast and high-quality charging of the smartphone in any situation. The device can be fully charged for 4-5 hours. It is not recommended to disassemble the charger yourself or try to open its case.

Unfortunately, the product is currently not available for purchase. You will be able to buy the "Xiaomi Mi Power Bank 5000 mAh Silver external battery" in Moscow upon receipt. Sign up for a notification and we'll let you know the price when the item is back in stock.