Cool Energy - Smart Capacity Mobile Power Evaluation
Because the mobile power function of this evaluation is still relatively simple, write the summary in front of it, so that people who do not want to see the map are too tired:
overall evaluation:
1, this is a beautiful appearance, small and exquisite mobile power. Input and output are 5v 2.1a (does not support Qualcomm or MediaTek fast charging technology)
2, cool energy mobile power in the connection of mobile phones can collect mobile phone battery usage data, and do battery maintenance (low current charging). The mobile power supply cannot be used for edge charging (cannot be output during charging, and the mobile phone client can also display disconnection)
3, can use external microSD to expand capacity for mobile phones (both Android and iPhone support, but need to install the app)
4, through the app can directly read the contents of the external SD CARD, but also through the app directly download network video to the sd card, but the support of the resource site is not much, and no ipad end app (if you use the iphone app can not Normal recognition of cool energy).
5. The speed of copying files from the sd card and the phone memory through the app is about 7M/s. Can directly play high-definition video files within the card, including, very smooth (30 seconds 100M MKV HD video samples, the original film 90-minute 10G size), Android-side play sd card video call is other video app, such as Mx player, basic pass Eat all formats. However, since it is not locally played, if there is a subtitle, it can only be placed inside the mobile phone and then loaded.
6, when connected to the computer can be used directly as a micoSD card reader, but the read and write speeds are only about 7m / s.
========================== Unboxing ====================== =======
Still omitting the express box directly on the physical, this test still intimately attached a 16g MicroSD card
To avoid the above parameters can not see clearly, then on the close-up
Power 5500mAh, input 5V 0.5-2.1A, output 5V maximum 2.1A
Pull out to see the front, the popular metal shell is quite tall.
In addition to the leather case and the instruction manual, a micro usb data cable was also included in the package, apparently for Android. Apple please bring your own data cable
(Individuals generally feel that the mobile power supply with the Apple data cable will appear high-end.)
The whole area of ​​cool energy is a good touch feeling of matte texture, the front button polishing design is conspicuous, short press to view the light, long press to start charging.
The included leather case is even higher than B. It is more humanized that there is a button on the leather case. You do not need to worry about the leather case.
Side from left to right are lit light, USB output port, micro USB input port and microSD card slot.
======================= Evaluation - charging part ======================= =
First, the output
As a mobile power work of course, we must do well, but 5000mAh is just enough, does not support the QC fast charge of the ordinary 5V 2.1A output is also quite satisfactory. Taking into account the cool energy while also responsible for otg function, it can be said that basically can only charge an ordinary mobile phone once.
Measurement of cool energy to s7e charging efficiency is low, only about 5w power. The nexus 6 has a larger current, but it is still only about 1.2A. Instead, LeTV 2's charging support for MediaTek chips is best, with a current of 1.3A or more.
For comparison, put a Huawei mobile power supply that does not support fast charging (the actual charge is about 5V 1.5A for the s7e), and the price of cabbage supports the fast charging of the Best mobile power supply (measured around 9V 1.6A).
To sum up, cool energy supports different mobile phone charging support, but the maximum current is less than 1.5A. The output of cool energy is worse than that of other conventional mobile power sources. After all, it is also responsible for data transmission while charging. Here is an example of a green connection data line. The charging current is large and stable.
Second, input
Samsung's fast charge charger is used (cool energy does not support fast charge, and the other maximum current supports 2.1A is also similar to the actual measurement). The charging speed for cool energy is about 5V 1.5A.
This speed is not bad, after all, 5000mAh also fill up fast. However, compared to other mobile power charging speeds,
Does not support fast-charged Huawei green, the total power is about 2W higher than the cool energy, the same 5000mAh. The Huawei mobile power is strongly recommended for mobile phones that do not support fast charging, especially for iphone users. Because the small green is stylish, lightweight, and charging speed is very fast (input and output are very good in mobile power that does not support fast charging).
This LeTV mobile power supply supports even faster charging. When the voltage is high at 9V, the current is more than 2A, and at 12V, it is also close to 2A. Measured when the battery is full, only 1A is less than.
Summarizing the cool energy as a mobile power input performance is also quite satisfactory, and there is still a gap compared to the excellent mobile power supply, especially compared to the mobile power supply supporting fast charge input. However, iphone's mobile power performance is still good, after all, iphone does not support fast charge. (As shown below)
Third, battery maintenance and battery diagnosis
In addition to the mobile power, other additional functions are required to be implemented by the mobile phone app, and the scanner manual can be installed by itself. After the app is installed, plug in the mobile power and turn on the power switch (press and hold it until the light is on). The phone will automatically open the app and prompt whether to open the battery maintenance.
The so-called battery maintenance is probably a small current charging, because the charging current drops a lot after opening, but in this case, the life of cool energy will also increase.
Low-current charging has some advantages for lithium batteries, but to say how much repair can be done, do not expect too much. For battery maintenance, cool energy is explained this way
As for these benefits, I am afraid that long-term maintenance is not obvious, so I can only say that it is better than nothing. However, when the battery power of the mobile phone is sufficient, if you only want to use the data function instead of charging the mobile phone, it is recommended to start the battery maintenance to reduce the charging current and extend the cool energy life. Another cool energy has a battery diagnostic function, you can see the phone battery data and usage, in-depth understanding of mobile phone battery status.
======================= Evaluation - Data Section ======================= =
One, app client features
The client's home page function is quite clear, in addition to the cell phone battery expert (diagnostic battery information, switch battery maintenance) mentioned above as well as file management (view and operate sd card and mobile phone memory files), backup (address book and SMS), all-round Browser (watch and download online videos, music). File transfer and backup are explained in the following transmission section. Here we will talk about the key video part (full browser).
Resource search can only select limited video and music websites, and a single search can only target one website resource. This is a troublesome place. However, Sohu, Tencent and bilibili are still more in line with mainstream demand.
If you watch the online video directly in this all-round browser, you will find many problems. Some Tencent videos cannot be played normally (as shown in the above figure), Sohu video can be selected for clarity but not full-screen, bilibili can be full-screen but cannot be viewed horizontally. Experience is poor, but now the video client is so mature, no one will be watching online video here, mainly download.
Video resources can be directly downloaded and saved in the sd card on the play page (can be downloaded in multiple choices or even downloaded from the complete set). The download speed is very good (at home 50M fiber, video download speed is about 2M/s), before there was an episode download failed, but No problem later. The magic is that it looks like you need vip to see it. The user who wants to see the Chinese expansion function is the video download function. This is also not available in other expansion devices. You can directly store the online video in the sd card and look back. However, the first is that the resource website is not yet comprehensive enough, and the second is that the download resolution is general. Looking at the screen is also OK, horizontal view is a little ambiguous. (Said now that the domestic drama is more and more a god)
Second, mobile (data transmission and video playback, contrast otg reader)
Cool Energy's own file manager can directly view the cool energy sd card and mobile phone memory files and copy each other. There is a backup option directly at the bottom, which is actually copied to the cool energy memory card root directory. Tested, a 100M video with a cool energy app copied from the sd card to the phone memory takes about 17 seconds, the reverse copy speed is similar, that is, the speed of reading and writing on the mobile phone is still about 6M/s (as In contrast, the Samsung s7e directly uses the otg reader in about 7 seconds. But this speed watching high-definition video is enough, measured to see a 30-second 100M HD MKV format video can play smoothly (original film 90-minute 10G size), and drag the progress bar can also quickly (about one second) play, see The video of big sister with general clarity is even less stressful.
It should be pointed out that playing the video is a call to a third-party app, such as the MX player I use, and the basic format takes over.
But the problem is that the MX player can't load cool energy sd card video subtitles in the same folder, because the file is read through the network port rather than the local play, to load subtitles can only copy the subtitles to the phone, this is too much trouble.
The above are all Android clients. The ios client is basically consistent with this. A slight inconsistency is added below.
After inserting, you will be automatically prompted to install the client and follow the prompts.
The ios interface is slightly different from Android in that the main interface has three options for pictures, videos, music, and documents. The result shows that this is just a folder created automatically in the sd card. Pictures and videos can be imported to the mobile phone. Support), other files can not be imported or copied to the phone, behind the file manager can only manage sd card files under ios!
The file manager in the file manager can choose to copy to the above four folders, but it is only copied from the card to these four folders, the speed is very slow, a 100M file to more than 40 seconds. However, such card replication is basically meaningless, and it is usually not used.
Tested video playback is good, very smooth, drag basically no delay. However, this seems to be Apple's internal player, and can not call third-party players, there is no option.
It should be noted that the ipad is not supported by the actual measurement and there is no response if it is plugged in.
Third, PC-side data transmission
Connect the computer with the data cable. Cool energy can be used as a card reader while powering on. You can view and operate the contents of the MicroSd card directly on the PC. I thought that I could only look at the content of the memory card through the app on the mobile device. I didn't think it would be easier to connect the computer to read it directly. This is a surprise. However, the speed of reading and writing, whether it is a software test or a direct copy of a file, is about 7MB/s. This speed can only be said to be barely a use. For a Samsung memory card, this speed is still obviously not a bottleneck in the memory card. .
The above is copied from the computer to cool energy sd card, below is the reverse copy video. Speed ​​is about 7M/s.
After the same memory card is unplugged, use the Kingston USB 3.0 card reader (top) and the Samsung dual head OTG reader (bottom) to test the read/write speed, respectively
In contrast, cool energy, if used as a card reader, is inferior to ordinary card readers, and is twice as fast as ordinary otg U disk. Therefore, if you are exchanging data with a PC, it is recommended that you use an ordinary card reader after unplugging the sd card. If you copy a movie, you can save a lot of time. However, as an integrated function, cool energy reading and writing functions on the PC side is weaker but more convenient than convenient.
========================= Pros and cons at a glance ====================== ======
Finally summarizes the advantages and disadvantages of Cool Energy:
advantage:
1, beautiful appearance, compact and portable. The metal shell is very exquisite, but also comes with a leather case is very high-end, do not have to worry about rubbing with the mobile phone metal shell.
2, as a mobile power supply to increase the smart features, in addition to conventional charging, battery diagnostics and battery maintenance features.
3, can expand the capacity of the mobile phone, and microSD can be replaced again, so if need to be able to prepare a plurality of sd card storage needs to read in time. Android clients can call third-party apps to play videos without worrying about format compatibility issues.
4, can download the video of many video websites directly, do not need to worry about taking up the capacity of the mobile phone.
Disadvantages:
1, as a mobile power performance can only be said to be quite satisfactory, can also charge the iphone. However, since fast charging is not supported, it is not as good as other ordinary mobile power when charging Android.
2, as a computer card reader and mobile phone expansion equipment, reading speed can only be reluctant to use, only about 7M / s, if the picture is more cached to see the thumbnails are delayed. In addition, only microSD is supported. If you can support ordinary SD cards, the photos of ordinary cameras can be imported into mobile phones directly through cool energy. Therefore, as a mobile phone expansion device, the speed of the otg reader is worse than that of an ordinary otg card reader. The supported card is only mircoSD. Android itself supports otg to connect to regular USB devices, and Apple now has otg readers to use, faster than cool.
3, video site resources crawl download function is good, but the site does not support much, resource search need to select the search site is too much trouble. In addition, the definition of the downloaded video is general, and if it can be selected, it is just fine. However, this type of crawling function may not be stable for a long time, which may need to be maintained at a later stage.
4, currently does not support ipad. The iphone Client Explorer cannot read the on-premise space, and the data exchange is limited to photos and videos.
In general, Android phones are not as convenient as ordinary mobile power +otg readers, because otg readers double the speed and support other cards, do not need to install additional app. Iphone users are still worth trying, after all, Apple's internal space is precious, cool energy can be downloaded to the sd card to download video sites can be said to be a killer function (Apple also has otg card reader but does not support the download of online video, it is only applicable For photography enthusiasts to export sd card photos in a timely manner and users who need to watch local small videos). However, the current price of cool energy is not low, the expansion of the ease of use of capacity is not as good as the iphone comes with memory, so in contrast may still choose a larger version of the capacity than adding a tow bottle cost-effective. If cool energy can properly reduce the price, enrich the amount of resources that can be crawled online and enhance the clarity of off-line videos, there is a certain market for unique products. After all, many users’ mobile phone space is not enough.
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