Who's cheaper when Apple doesn't have a charger? Evaluation of Zimi 20W PD charger

As we all know, apple canceled the charger in the packaging of mobile phones in the name of environmental protection, leading to the third-party 20W PD fast charging market from scratch to hot. Zimi has always been an excellent accessory manufacturer for Apple products. This time, Zimi 20W PD charger was launched.
What's more, this product is catching up with the upsurge of the iPhone 12 series. The price is set at 39 yuan, and the price can be lower through the event. This is like a blockbuster that detonated the whole market, and the price war officially started, which made the fierce competition in the 20W PD fast charging market white hot. For this important product, we also conducted a comprehensive evaluation, let's have a look!


1、 Open box display

Let's look at the packaging first. The first feeling is that the packaging is very small, just like two pieces of mahjong put together. Maybe it's also for the sake of "environmental protection". On the front, there is the logo of Zimi brand, product appearance and name, with simple design style.

Enterprise information:

Manufacturer: Nanjing KUKE Electronic Technology Co., Ltd

Address: south side of 18 / F, building B, Xingzhi Science Park, 6 Xingzhi Road, Nanjing Economic and Technological Development Zone
Manufacturer: Dongguan furuikang Holding Co., Ltd
Production address: 1-4 / F, building A6, silicon valley power 2025 science and Technology Park, 38 Dongke Road, Tongsha science and Technology Industrial Park, Dongcheng Street, Dongguan City
Supervised by: Jiangsu ZIMI Electronic Technology Co., Ltd
The other side is marked with charger parameter information.

ZMi USB type-C fast charger (20W)
Model: ha716
Input: 100-240V ~ 50 / 60Hz 0.5A
Output: 5V ⎓ 3a, 9V ⎓ 2.22a, 12V ⎓ 1.67a, 20W Max
Package contents: charger * 1, instruction * 1

With hook design at the top, it is convenient for product exhibition. The parameter information on the back will not be repeated.
When you open the package, you can see that the charger is full. The reason why the package is so small has been found. The design is so small that the package is as big as the charger is.

The package contains charger and instruction manual.
2、 Charger appearance

The charger is smooth and compact, with classic shape, bright design, and zMi brand logo on the front. The overall design is very simple.

The white shell made of PC flame retardant material is used, the shell of input and output end is frosted, the arc surface transition between the sides of the waist, and the input end is equipped with fixed GB pins. There is a usb-c port and a white rubber core in the center of the output top surface. The charger parameter information is marked on the shell, which is consistent with the packaging.

3、 Volume, weight and comparison

If you want to talk nonsense, it's a normal charger in your hand. It's neither fancy nor small. It's mainly practical and durable.

Measured by vernier caliper, the length of charger body without pin is about 42.9mm. The thickness is 21.9mm. The calculated volume is about 3.56cm 3. The net weight is about 44g. Put the one dollar coin on the side, you can see that the thickness of the charger is much lower than the diameter of the coin. Compared with apple 20W charger, it has similar style and smaller volume.

4、 Fast charging protocol detection

The output protocol of usb-c port is read by using chargerlab power-z kt002. The display supports Samsung 5V / 2a and DCP protocols, as well as qc2.0/3.0, AFC, FCP and pd3.0 fast charging protocols.

PDO message shows that the usb-c port also has three groups of fixed voltage gears: 5V ⎓ 3a, 9V ⎓ 2.22a and 12V ⎓ 1.67a.
5、 Charging compatibility test
The iPhone 12 Pro supports USB PD and apple 2.4a fast charging protocols. It is charged by zMi purple rice 20W PD charger with a power of 8.90v, 2.18a and 19.44w.

One plus 8t supports dash, warp and PD fast charging protocols, with power of 8.91v, 2.19a and 19.56w. The iPad air 4 supports USB PD fast charging protocol with power of 11.91v, 1.59a and 18.97w.

Put all the test data into the table. The power of most of these flagship iPhones over the years is more than 19W, and the power of the iPhone E2 is slightly lower, about 11W; besides the iPad air2, the power of the other three iPads is also about 19W. Among the Android models, one plus 8t performs best, and its power exceeds 19W.

Put the test data of usb-c output compatibility in the bar chart, and one plus 8t won the first prize, followed by several flagship iPhones and iPads, and then Android models. It can be seen from the compatibility that zMi Zimi 20W PD charger is specially made for apple family.
6、 Charging test
Using zMi Zimi 20W PD charger to charge the iPhone 12 pro, the power has reached the power level of 9V 2.22a at the beginning of charging, the high power input lasted for about 18 minutes, and the current began to decline step by step; at about 50 minutes, the voltage dropped to 5V, and the current came to 1a; at about 1 hour and 6 minutes, the current and power began to decline gradually until the end of charging. The maximum power is 8.92V 2.11a 18.87w.
7、 Full charge
Thetest data are tabulated. The zMi Zimi 20W PD charger charges 58% of the power for the iPhone 12 pro in half an hour; 88% in one hour; the whole process takes about 1 hour and 38 minutes.

8、 Maximum output power

1. 9V gear
The maximum output power of zMi Zimi 20W PD charger was tested by EB programmable electronic load. The maximum output power was 8.59v 2.40a 20.6w with 0.1A current step amplitude and 10 seconds interval.
1. 12V gear
Taking 0.1A as current step amplitude and 10 seconds as time interval, the maximum output of 12V gear is 11.68v, 1.70A and 19.9w.
9、 One hour full load
According to the rated power of 9V 2.22a full load stability test, the test time is one hour, the voltage value in the test process is horizontal and straight line, no obvious fluctuation, long time full load is also very stable.


10、 Temperature rise

The temperature rise of the charger is tested. The test condition is to continuously output 9V 2.22a 20W power for one hour in an incubator with a temperature of about 25 ℃. Before the test, the maximum temperature is 28.8 ℃.
Summary of charging head network
ZMi purple rice 20W PD charger is classic, simple and durable. The overall design is small and exquisite. The waist is white and round. The input end is equipped with fixed pins, and the usb-c port is set in the top center. It has a good experience. It should be noted that the packaging is also "environmentally friendly".

The charger supports multiple protocols of QC, AFC, FCP and pd3.0, supports 9V ⎓ 2.22a and 12 ⎓ v1.67a output, and the maximum 20W PD fast charging can meet the charging requirements of iPhone 12 series, iPhone 11 series and other mobile phones, with high cost performance. For some Android models and iPad, it can only be described as "enough".
In a word, this is a highly targeted product, which can be said to be specially made for the iPhone 12 series. The price is also very "touching". It must be a popular product!