Power Pond 4C: external USB battery for portable equipment

Not everyone, but anyone who is seriously ill with all sorts of gadgets knows that it is easy to forget to charge something, but it is very difficult to survive this fact. Not physically, of course, but morally - breaking is simply unreal.
So when I found out that the battery in the tabletnot bad, but not perfect, I began to look for a way to solve this problem so that a) not to carry a charger with me and b) therefore, do not run around in search of a socket.

In other words, it is best to simply throw the tablet (phone, headset, ...) into the bag and charge it on the way until it is needed.
First of all, a small purchase history. When I bought, in the title-description was indicated 12000 mAh, and in the description - the whole placer characteristics. Therefore, I asked the Chinese what they mean.
The Chinese thought a little, and said that I was lucky, and that they would sell this battery (12000 mAh) at the stated price, although they were mistaken and meant 8800 mAh.
For this reason, now the link for my price is a slightly different thing.
In general, in the model range there are many different options: 4400, 5200, 8800, 9600, 10400.
Also note that they offer a full set of adapters / wires for money. Included with the battery is only charging, two cables and one adapter.

So, to the battery.
Introduction: the tablet battery is 4800 mAh, the charger is labeled 5V / 3A, the phone's battery is 890 mAh, the headset is probably no more than 200 mAh.
All my devices are charged with a voltage of 5V, thenThere is a formal USB standard, the only serious exception is the tablet, which does not pass on current. As a result, the TK on the charger looked as follows:
1) USB output
2) minimum capacity 6 Ah
3) the maximum possible charge current
4) WHITE! *
* You understand, I have a white tablet, well, in general.
Prosherstil a bunch of autonomous charges on the DX, and even more - on AliExpress, and stopped here on this thing, because the overwhelming part of the characteristics coincided:
Charging inputs: mini-USB, micro-USB (2A / 1A)
Charging time: 6-8 hours
Outputs: USB, up to 2A
Dimensions: 160 x 45 x 25.7 mm
Weight: 250 g (measured 254 g)
Set: battery, Apple cable, mini-USB cable, mini-USB adapter - microUSB.
Well, I was also hooked on a very simple design. Such a cute parallelepiped, nothing superfluous. And one very spectacular detail: the logo turned out to be an interactive charge indicator - the more letters "lit", the more energy was left.

Since before using the battery you needcharge, with this and start. In my opinion, the Chinese put together just excellent cables. They are quite thick, which hints at a good wire, designed for a decent load (namely, hints, I did not cut it), and in a soft, rubber-to-touch shell.
Another Chinese trick is two separate entrances.Charging: 1A and 2A. I cannot check how correct it is - I don’t have a 5V / 2A source, but I like the idea, because, if implemented correctly, I can charge this thing faster, which is very important with such a capacity.

The manual does not say anything about charging with the simultaneous connection of power sources to both inputs, and I have not experimented with this.
Regular power adapter 1A this batteryit takes 8-9 + hours to charge for quite a long time, I leave for the night, by morning, as a rule, the letters cease to “run”, which signals a full charge. Oh yeah, if video fails - the charging process is animated by the backlight of the letters in the logo, so at any moment you can see what the current charge level is in the opinion of the built-in controller.

Video: http://video.yandex.ru/users/helpfrom/view/4/
And after a month of use + I can say that its possibilities suit me, although I wanted more.
Firstly, it is gorgeous that charging has TWO exits. Thanks to this feature, I sometimes charge a couple of devices right away — for example, a tablet and a headset. Or a headset and phone.

Secondly, a gluttonous tablet, it can chargea couple of times. At the same time, the charge level of the tablet is obtained at about 80% - 90% of its indicator, if charged from scratch. The trick is that the Chinese tablet turned out to be designed for charging with a high voltage, so when it almost “eats up” when charging from honest 5V, it turns off the full charge on these most 80% - 90%.
At the same time, a big plus, which generally charges, because the tablet's native charging is marked as 5V / 3A, which hints, as it were.
The downside is that you have to charge the tablet incompletely off, because when the battery power is not enough to charge. It looks like this: when the brightness is low, the tablet screen flickers noticeably, its charging indicator switches between the charging indication and the normal mode.
This is how it looks with an 8-inch tablet:

Plus, however, if you increase the brightnessthe screen, the flicker is not so noticeable, but the time of the tablet increases slightly. Obviously, the external source slows down the discharge of the built-in battery, and this is sometimes very important if you can not turn off the tablet for standard charging.
And since I was counting on the fact that the tablet will beto restore power in complete peace, then I report the results of the last experiment. In the off state for 3 hours of charging, the battery level of the tablet battery increased from 10% to 42%. Those. by about 30%.
As for the phones, this battery charges them even when on, and without any problems at all.
Problems, paradoxically, arise fromdevices that consume small currents. But the fact is that this smart charging is turned off automatically when it sees that consumption has dropped to some predetermined level. And unfortunately, this level is somehow higher than the normal current at the end of the headset charging.
Those. The logic of charging the headset is as follows: up to 70 percent, we charge with a large current (fast charging), and then switch to a lower current (slow charging). Here, with slow charging, the battery believes that the "lunch" is over, and turns off.
And although this is not particularly critical, because 70%The headset is charged, there may be a problem with other things. For example, I could not use this battery as a power source for a portable speaker: it turns off and that's it.
To summarize, thanks to the standardI / O battery charges anywhere and charges anything. And due to the impressive capacity, it also does this at least several times, therefore the TK as a whole corresponds.
For a month of use, an unpleasant feature was discovered. The plastic of the case turned out to be a bit “porous” and soft, so the battery gradually loses its appearance: it gets dark and scratched.
Therefore a brief summary.
Pros:
1) Large capacity
2) Standard connectors
3) Compact size
4) Attractive design
Minuses:
1) High current auto power off
2) Marked case
And some more cards: design and size.