This is the latest offering of the xiaomi mi portable charger line, very similar lớn the previous “Xiaomi Power ngân hàng Pro” mã sản phẩm which also has a 10,000mAh battery. Key differences are the micro-USB instead of the USB-C port & the price. I’m a big fan hâm mộ of mi portable chargers & I immediately pre-ordered mine when it appeared on BG. This is not a free-item review as I paid full price for it
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Specs from Xiaomi:Model: PLM02ZMMaterial: Aluminium AlloyCapacity: 10,000mAh 3.85V ( 38.5Wh )Product weight: 0.250 kilogam Dimensions: 130 * 71 * 14.1mmBattery Type: Lithium polymer batteryInput: 5.0V2.0A, 9V/12V18WOutput: 5.1V2.4A 9V/12V15W MAX
One of the reasons I love xiaomi power banks is because they state all the numbers in the spec, including the energy rating which is useful lớn measure efficiency. This version uses a 3.85V battery which gives it a slight advantage in energy as compared to lớn 3.6V và 3.7V chemistry. Higher nominal voltage and an extremely efficient conversion module gives the xiaomi 2 the almost unbelievable results in the discharge tests (See below).
Unboxing: It comes with a short USB cable and a brief instruction manual in Chinese (not pictured)
Some info in the back of the box
Build unique and interface:
The xiaomi Power ngân hàng 2 is very sleek and can easily be confused with a 5,000mAh power nguồn bank. Being made from an aluminium casing, build chất lượng is great and it feels very solid.
Close up of the finish and CNC machined logo. Very even anodizing in a dark blue-grey tone.
Vs. Other xiaomi mi power banks
The slimmest of the bunch
Size comparison with a S2+
Close-up of the top: button, 4 LEDs khổng lồ show capacity, micro USB for input and USB out. The matte finish can be easily scratched.
Lots of info underneath
Operation and performance:-It has auto start when a device is connected-Will automatically turn off after 30 seconds if a load is not detected-One single button operates the nguồn bank, it will turn on the đầu ra or restart it when pressed.-Double click activates a low current mode, designed to charge/power low power nguồn devices such as công nghệ bluetooth không dây headset, USB lamp, keychain flashlights, etc. These devices draws very small of current và in normal mode would not keep the power nguồn on. -Pass-through charge is possible but QC is disabled for both input and output.
“Real world” device compatibility test:When doing tests on a power ngân hàng it is much different khổng lồ use a USB load than a real device. Most of the times a dummy load will force the power bank to put out certain power nguồn while in a real world situation it will not vì chưng the same with a phone or other devices. My devices for this thử nghiệm each have certain characteristics when it comes to lớn drawing power:
-iPhone 7: Charges up lớn at 2A, but limited to lớn 1A if the coding is not correct.-YZXstudio 8th ren powerbank: will automatically detect the output & switch khổng lồ highest possible charging voltage (12V). -Aukey 30,000mAh powerbank: one of the few devices to lớn draw 2.4A, some chargers don’t provide táo apple 2.4A coding or can’t handle this current & will trip.
Results:-iPhone7: Charged fine at 5.2V/2A -YZXstudio powerbank: Maximum charge rate detected was 12V/1.2A. The YZXpowerbank will draw as much current as possible until the voltage drops 0.5V. This is inline with the specs, 15W
12V Max.-Aukey powerbank: Charged fine at 5.1V/2.4A
The included USB cable is the flat type and measured 0.09 Ohm resistance at 5V 2A. This is good compared to lớn my other short cables.
Charge test:-Maximum input đầu vào using a QC3.0 adapter was 9V/2A-From empty khổng lồ full it only took 3hr 38min, impressively fast.-49.6Wh required lớn fully charge with an efficiency of 77%-After being fully charged it draws 33mA while idle-There is a current dip to 0 every ~10 minutes during the CC phase, this only lasts a couple seconds but it is enough for the graph to lớn pick it up. I think this is how it tells the battery voltage without applying a charge. The dip is sightly visible in the voltage line because the Anker PowerPort+1 has voltage compensation when under load (lower current = lower voltage, as you can see towards the kết thúc of the charge). I will have to chạy thử it again with another charger and see if this happens as well.
This is my new style of graph for my power ngân hàng reviews, now includes the energy axis. That is a nice và sharp CC/CV drop.
5V/1A: output was completely flat, putting out 36.84Wh in 6:57 & achieved an amazing 95.6% efficiency. This is one of the highest of any power bank I’ve ever seen, a very close match to the YZXstudio 8th which is several times more expensive.
5V/2A: nice và flat output like in 1A test, slightly lower energy.
9V/1.5A: đầu ra remained above 9V until 2:03 and started a slow drop, final reading was 7.01V at 2:25.
12V/1.5A: It wasn’t able to lớn sustain 12V for long & started a slow drop from the 30 minutes mark. The specs says a maximum of 15W for both QC output and I was drawing 18W in my tests. This won’t be a problem when used with a điện thoại cảm ứng thông minh because in 30 minutes the current would have already dropped from 1.5A.
The complete chart
Notes:-Spec shows 6,900mAh of đầu ra capacity at 5v/1a rate & I got 6,959mAh. Not something you see everyday! -The internal battery is LiPo with a nominal voltage of 3.85V, so compared to lớn a 3.7V 18650 power bank of the same capacity there is a small energy increase.-Compared to the older xiaomi 10,000mAh (pictured above), I’m getting roughly 7Wh more at 5v/1a which is a dramatic 23% increase. This is enough lớn give an extra full charge to lớn a điện thoại thông minh with a ~1300mAh battery.
Final words…I’m overall very impressed with the performance of this nguồn bank, given its compact form size and price I would say this is simply the best 10,000mAh power bank you can buy.
The good:-Slim, lightweight & great build quality.-Extremely high efficiency, out-performs most higher capacity và more expensive power banks.-Strong output enough khổng lồ charge the most nguồn hungry devices. Recharges very quickly as well.