A long time ago I did not review portable charging, thenI mean the bank, because there were no interesting models or they didn’t catch my eye. But today, finally, there will be a story about one of these. The Powerseed brand, let's say, is almost no-name, it is little known not only to you and me, but even to the Chinese themselves. I specifically learned this. Given that the product is manufactured without Chinese characters, they cannot be found either on the box, in the instructions, or on the device’s case itself, we can assume its orientation to the foreign market. It will be doubly interesting to find out whether the declared characteristics correspond to reality, but they are quite good here. The battery capacity is 10000mAh, there is support for fast charging on both inputs (QC2.0), which are two here - microUSB and USB-C, several types of fast charging on the output (Qualcomm QC2.0 \ 3.0, Huawei FCP, MediaTek MTK-PE +, Apple2 .4A), support for USB-C Power Delivery PD3.0 up to 18W, which is relevant for modern devices from Apple and all this in a compact package.
Packaging is solid, as I said withoutChinese characters. But it does not mention the Powerseed brand itself, but the current model - POP PLUS is indicated in large text. On the reverse side there are technical characteristics, among which you can see that the model is built on lithium-polymer batteries. But this is already interesting, because the size and shape of the case are more suitable for lithium-ion "cans" of 18650.
Includes a power bank and a short cablemicroUSB. For some reason, there is no instruction here. Perhaps the seller before sending checked the device for operability and forgot to put all the contents back. This actually happens often)).
The cable is 30 cm long, very thin and does not inspire confidence. Under a load of 2A, the voltage drops to exactly 0.3V, which is not very good. It’s better to use another one.
The external battery itself is“Chubby” rectangle, the body of which is made of semi-glossy black plastic. I am not a fan of such material, because it does not tolerate mechanical influences, it is immediately covered with scratches. The design is certainly boring, but we do not have to admire it, but use it for its intended purpose. On the front side there is a charge level indicator, presented in the form of four white LEDs. Its useful function is also that when charging or delivering energy in fast mode, the first LED changes color from white to green. So we can easily find out the current operating mode of the device. On the same side, we see the name of the Powerseed brand.
On the reverse side are painted the technical features of the model, as well as tips where which port is located.
Interfaces are mainly located on the upper endcorps. We see two full-sized USB-A ports (mother), one of which is for standard charging with a voltage of 5V, and the second is colored blue for accelerated with support for QC3.0, FCP, etc. Between them is a USB-C port, which acts as an input and output. Supports PD3.0 charging protocol.
On the left side there is another entrance forrecharging the power bank itself, already presented as a microUSB input. The power button is located on the opposite side. It does not have much functionality and benefit; it serves only to turn on the LED indicator.
Physical dimensions, which I measured to getsuch: in length - 99.9mm, in width - 64.0mm, in thickness - 23.8mm. Weight - 204g. The model is compact and lightweight, fits comfortably in the hand. Carrying in your trouser pocket will not be as comfortable as thinner models.
Group photo compared to Arun F1 Plus and Powerseed TANK Mini.
What batteries are hidden inside ?! This question still forced me to open the case. Everything was done without vandalism, the plastic is not glued, but keeps on snaps. And what do we see here, instead of the 18650 lithium-ion batteries I expect, the manufacturer shoved flat lithium-polymer batteries.
There are two of them here, soldered in parallel and havemarking on each: -WE-E0-3.7V-985568-12 and release date January 2, 2018. The capacity is not indicated in any value, but in appearance, i.e. the dimensions they completely pull on 5000mAh each. By the way, three banks of 18650 can easily intervene instead.
As the main controller is used, previously unknown to me SOC from ZHUHAI ISMARTWARE TECHNOLOGY CO., LTD SW6106. Judging by the datasheet, it performs the role andcharge controller and the role of a boost converter with support for various charging protocols (PD2.0 / PD3.0, QC, FCP, PE, SFCP. It can provide output power up to 18W with an efficiency of up to 95%. In addition to it there is one inductor and classical lithium protection battery in the form of a controller DW01A and transistors 8205B.
The final part of the review is verification.characteristics for reliability, in other words testing. First, I checked the supported charging protocols using the Arun F1 Plus USB tester. The first port is listed as normal, so it really is. It can only charge devices with a voltage of 5V (DCP 5V \ 1.5A). The second port is already multi-protocol - Apple2.4A, DCP 5V \ 1.5A, QC2.0 \ 3.0, FCP 9V \ 2A, as well as MTK-PE + 5V \ 7V \ 9V \ 12V. And the third output is USB-C PD3.0 up to 18W, Samsung 2A, QC2.0 \ 3.0, FCP 9V \ 2A.
Profiles PD3.0 18W:
- 5V / 2A
- 9V / 2A
- 12V / 1.5A
There is no charge of low-current devices, minimumpermissible load - 0.075A. Any other value below this will cause the device to go to sleep. True, this applies only to the outputs of USB-A (mother). The USB-C port, on the contrary, may not disconnect the voltage for a long time, even without load.
Through charging is also essentially absent. The photo below shows that if you simultaneously charge the power bank and try to recharge something else from it, the output voltage will drop significantly even under a small load.
Charge simultaneously in fast mode and init’s impossible, we still have one controller. Priority is always given to fast charging. Those. for example, if a device is already connected to USB1 that is charging in normal mode and after that we use USB2 in fast mode, the entire device restarts. The process after that continues only on the USB2 port (fast), and the USB 1 port (normal) is disabled. I saw the same behavior with Arun F1 Plus. In the standard 5V charge mode, the process can go on all three outputs simultaneously without any problems. The total output power of approximately 3.3A
The external battery itself can be charged in both normal mode (5V) and fast (9V). This is true for both microUSB input and USB-C separately.
In normal mode, the full charge process takes4 hours 45 minutes. At the same time, it flows in about 9200mAh. Quick charge reduces this time to 3 hours 34 minutes. The charge graphs in both cases are very similar. The charge current in the first case at the peak reaches 2.3A, and in the second, 1.8A.
Many may wonder what ifconnect charging immediately through two inputs? We won’t get anything sensible from this. The device will certainly not fail, but the process will drag on for a long time, because the current from 2A drops to 1A.
And at the end of a couple of discharge tests, to evaluatenet output capacity. When discharged in 5V / 2A or 10W mode, the output capacity is 6963mAh or 34.57Wh. The result is good, above average. The graph shows that there is no loss of power, right up to the shutdown.
In discharge mode 9V / 2A or 18W, the figure is usefulcapacity is - 31.87Wh. The graph shows a small, smooth decrease in voltage as the residual capacity decreases. Not critical, in practice it will be even imperceptible.
As you can see, despite the fact that today's heroreview for us rootless nouname, nevertheless, it fully corresponds to the declared characteristics. And here they are not the worst, on the contrary. In addition, the case has a compact size and low weight (only 204 g). Efficiency, or in other words, the useful output capacity, turned out to be even higher than average values - 6963mAh. Supports fast charging at the input, immediately on both ports (microUSB and USB-C) separately. You can also note the fast USB2 port, which supports a list of protocols for accelerated charging of devices: Apple2.4A, DCP 5V \ 1.5A, QC2.0 \ 3.0, FCP 9V \ 2A, MTK-PE +. There is also a modern USB-C output with PD3.0 charge protocol power up to 18W.
The following phones can be charged in accelerated mode from the bank:
- having a processor from Qualcomm and supporting the QC3.0 \ 2.0 charging protocol,
- Huawei phones with Fast Charge Protocol technology,
- devices with a processor from MTK and supporting MediaTek Pump Express Plus (MTK-PE +),
- old devices from Apple (up to 2.4A),
- New devices from Apple (USB-C PD3.0 \ 18W).