Overview of the Miboxer C8 - an eight-slot charge for the 18650, with a choice of current from 0.1A to 1.5A (up to 8A).

Some of the most common exercises arefour-slot, a little less than two. Compact single-slot ones also occupy their niche, but they more often act as original banks. But eight-slot ones are quite rare. Today is just a review of one of them, the Miboxer C8, the latest items from last summer. Charging is designed for 8x18650 and supports a total current of up to 8A. Unfortunately, she does not know how to measure the given capacity, and this should be immediately warned. Whom she is still interested in - welcome. Disassembly is present.

Table of contents:
- Packaging and delivery
- Construction
- Analysis and heating
- Management and modes
- Conclusion
Features Miboxer C8:

✱✱✱
- Packaging and delivery.
Charging is delivered in an original cardboard box for the company in white colors. In front, you can see pictograms indicating the main features of the model:
On one of the ends are written characteristics:
The back of the box is a little more detailed about the features:
Options, as for charging, normal:
- Power Supply
- instruction
There is no charger in the car, but its support is available.
AOK AK36WG-1200300V power supply unit.
Specifications:
> INPUT: 100-240V 50 / 60Hz 0.8A,
> OUTPUT: 12V 3A.
The instruction is completely in English and describes charging in details. On a PC, photos should be clickable:
✱✱✱
- Construction.
Miboxer C8 is not much different from the adjacent models of the company. At its core, it is simply an enlarged version of C2.
About a third of the front of the space is occupied by a platform with an LCD display, on which a protective film is glued from the box. The rest are battery slots.
Next to the display are two buttons: SLOT and MODE, which are responsible for the functions in accordance with their name, but more on this will be further. The buttons are bright and noticeable, made of dense yellow rubber. Press moderately tight and with a click.
The company logo is located above the display:
As you can see in the photographs, the cooling fins are not the same as they seem from far away - there are no through fins.
This model is designed for eight elements of 18650, but if you wish, you can fit several 26650 into it. But it won’t work out to occupy all the slots with such hulks.
The slots are made as elsewhere - neatly and with an indication of the correct location of the poles.
The power connector is located at the top of the charge, above the display:
The remaining faces are empty:
The back side of the Miboxer C8 is very smallthrough holes and is content with a list of supported elements, basic characteristics and six rubber legs. They, in turn, do their job perfectly.
The quality of the plastic used is at a good level. I would not say that the best material in my memory is used here, but I also can’t add anything bad: there are no incomprehensible scratches, or sloppy joints. Do not leave scratches with your fingers (nails), and the overall solidity will definitely help the charging survive unforeseen falls. Which, of course, is best avoided.
✱✱✱
- Analysis and heating.
There are six screws under the rubber feettwo different quantities. But the back cover is held not only on them, but also on the latches, which are not so easy to pry. Nevertheless, it is quite feasible, and under the plastic cover we have:
The board itself rests on one rather big screw andthrough the grooves at the pads. Pulling them out was not a problem, but the springs without a housing do not hold and therefore they must be put aside.
Nameplate, MiBOXER PCB-C801-180518 (2018-07-03).
Display MiBOXER PCB-LCD7-180518.
More detailed photos:
Macro



I did not find anything indecent in the assembly - done honestly, without a single extra speck of dust.
***
Heat.
Since charging is not provided for inspiringcooling ribs I had concerns about this item. But they were false, because during operation at their maximum power, when the highest current was applied to each of the eight batteries, the heating was very insignificant:
✱✱✱
- Management and modes.
With batteries installed, including one that fits one 26650, charging is as follows:
When installing the batteries without connecting the power, nothing is displayed on the charging display, since the possibilities of the bank are not organized here.
After connecting to power, the displaypictograms of all elements are displayed at once and automatic settings for each of them are determined. Including, the type of battery is automatically detected.
Without backlight:
There is support:
- Li-ion (4.2V / 4.35V), IMR / INR / ICR
- Ni-MH / Ni-Cd (1.48V)
- LiFePO4 (3.6V)
As you can see, all the most popular batteriessupported here. This is a bit surprising, because in their past exercises with Miboxer’s this or that type was absent. Support for LiFePO4 is generally unexpected, actually.
Supported sizes:
10340/10350/10440/10500/12340/12500 /12650/13450/13500/13650/14350/14430/14500/14650/16500/16340 (RCR123) / 16650/17350/17500/17650/17670/18350/18490/18500/18500/18650/18700/20700/21700/22500 / 22650/26500/26650 / A / AA / AAA / AAAA / C / SC
In other words, the Miboxer C8 is very versatile in charging. This is very pleasing considering that such a "monster" should be something like a universal station for everything and everyone.
During charging, the display showsinformation only to the slot that is selected using the SLOT button. Displayed: charge level in percent, voltage, resistance / current, flooded capacity / charge time. A very strange decision is to place the current strength indicator in the window with resistance - the indicators are shown alternately and therefore sometimes you have to wait until the desired one appears.
By holding down the MODE button, you can enter the current selection mode for the selected slot. One of the features of charging is that it is possible to choose from the lowest to relatively large values:
0.1 / 0.2 / 0.3 / 0.4 / 0.5 / 0.6 / 0.7 / 0.8 / 0.9 / 1.0 / 1.2 / 1.5A
But there are limitations. For Li-ion elements, only 4 slots for 1.5A are available, that is, a total of 6A. For LifFePO4, the maximum is 0.8A, but for eight slots (a total of 6.4A). And for Ni-MH and Ni-Cd elements, 1A is already available, all the same for eight slots (a total of 8A). Similar restrictions are made, of course, in order to protect the elements from excessive load. And by virtue of those. restrictions.
In addition, automatic current adjustment is provided for in charging, and at the end of the charge of any element, the current strength set by you will be reduced.
By double-clicking on the MODE button, you can manually select the type of battery. Any of the above, including 4.2 or 4.35V, can be set for any Li-ion element.
Pressing the SLOT button on the display for fiveseconds, the status of all eight slots will be displayed immediately: this will help to understand in which battery has already been charged at one time, instead of flipping through all eight.
Graphs


***
At the end of the charge, FULL will flash on the display of the resistance and current strength:
Naturally, the possibility of charging to restore the "killed" elements is claimed. There are none in the presence, but Liito-Kala Lii-500 restored the pair in due time.
On this, the functionality of C8 ends. I do not observe voltage errors when I reach the maximum charge.
✱✱✱
- Conclusion.
Pros:
- Build quality (including internal)
- Compatible with LiFePO4 and 4.35V
- Manual selection of current from 0.1 to 1.5A
- Convenient management
- Low heat
Minuses:
- Lack of discharge mode
- Lack of verification regime (controversial)
- Price
Miboxer C8 fully meets its name. At least - there are eight slots. But seriously, the main ability of such a huge thing should be to support the largest number of elements and, very desirable, the fast process of their charge. Charging can cope with this almost completely, if not for some restrictions depending on the number of certain batteries and the available amperage. But even in this situation, the total power of the C8 is at an excellent level - nevertheless, it squeezes up to 8A.
But in such a building and price it was possible, of course, to be generous and to check the given capacity, which in such a large "station" was completely superfluous.
Thank you all for your attention!