preface
Amazon Amazon is the world's largest shopping platform and is no stranger to many. Just like JD.com's "Made in Beijing", Amazon also has its own brand Amazon Basics, which was founded by Amazon based on consumer electronics, which is a model of quality assurance and affordable price, and is loved by consumers in the United States.
Recently, the charging head network received a 68W PD charger from AmazonBasics, this charger dual C port output configuration, made in China, the product appearance is decent, what kind of performance does it have under the ordinary appearance? Charging head network This is for everyone to get started with this "homecoming family" charger.
Product introduction
The AmazonBasics 68W PD charger looks a bit like a bun block, and the upper and lower ends of the white frosted casing are tightened to make the charger look less monotonous.
The interface surface is dented.
The plugs are American standard double-pin plugs, folding plug design.
Dual USB-C interface output configuration, the maximum output power of the upper interface is 18W, the maximum output of the lower interface is 60W, and there is a power indicator below the interface, which is convenient for users to observe the power-on status.
At the bottom are folding pins and parameter information:
Model: PD68U-2TGC
输入：100-240V 50/60Hz 1.5A Max
Dual-port simultaneous output
C1：5V3A 9V2A
C2：5V3A 9V3A 12V3A 15V3A 20V2.5A
Single-port output
C2：5V3A 9V3A 12V3A 15V3A 20V3A
Total output: 68W Max
The height of the AmazonBasics 68W PD charger is about 61.88mm.
The length is approximately 65.99mm.
The width is approximately 29.12mm. The AmazonBasics 68W PD charger has a size of about 61.88×65.99×29.12mm, and a volume of 118.91cm, with a power density of about 0.57W/cm based on the maximum output power of the charger of 68W.
In your hand, the charger is on the larger side.
Compared with the Apple 67W, the volume seems to be not too much.
The AmazonBasics 68W PD charger weighs about 146.5g.
Product reviews
After introducing the appearance and size of the AmazonBasics 68W PD charger, I will take you to see the specific experience of this charger. The charging head network will take everyone to understand this charger from the aspects of protocol test, compatibility test, charging test, standby power consumption test, etc.
Protocol testing
This test module mainly tests the fast charging protocol supported by the device, and the user can match the output device according to the specific protocol, so as to obtain a better fast charging experience.
In terms of protocols, ChargerLAB's POWER-Z KT002 is used to read the charger's fast charging protocol, and only PD3.0 and other charging protocols are supported.
In terms of PDO messages, it supports two sets of fixed voltages of 5V3A and 9V2A.
Reading the fast charging protocol of the USB-C2 interface, the actual test also only supports the PD3.0 protocol.
In terms of PDO messages, it supports four fixed voltages of 5V3A, 9V3A, 15V3A and 20V3A.
Does the PDO change when using a two-port? Unlike the charger specifications, the PDO has not changed.
Charging compatibility testing
The compatibility test link can clearly know the charging situation of the charger for each device, and the charging head network will use dozens of devices with the charger for testing, presenting the reader with real test data.
Charge the iPhone 13 Pro Max at approximately 8.91V 2.84A 25.37W.
Charge the iPad Pro at approximately 14.97V 2.1A 31.48W.
Charge the MacBook Pro 16 2021 at approximately 19.91V 2.96A 59.04W.
Powered the Switch TV base and successfully triggered TV mode with a power of about 4.63W.
Charge the Mijia hand drill, the power is about 5.02V 1.8A 9.08W.
Putting the data into the table, charger compatibility is a bit unsatisfactory, after all, there are fewer protocols supported.
The charging power is sorted from high to low, and the histogram is made to make a histogram to intuitively compare the difference in charging power between different devices.
Charge the iPhone 13 Pro Max using the USB-C1 interface at approximately 9.03V 1.95A 17.63W.
The situation of the 18W interface is a little better, and the compatibility is as shown above.
The dual ports charge the Xiaomi Mi 11 Pro and MacBook Pro 16 2021 simultaneously at 16.28W and 48.84W, respectively, for a total power of 65.12W.
Full test of charging
Charging the whole test can clearly see the changes in the parameters during the charging process, this time the model used is MacBook Pro 16 2021, to see the data changes in the whole process of charging.
1 hour and 28 minutes before charging, the power is maintained at about 57W, and then the ladder drops to 46W, maintained to 1 hour and 44 minutes, and then enters the trickle charging mode, the whole process takes 2 hours and 37 minutes, and the charging voltage is maintained at 20V.
The charging data is plotted into a graph, and the charge is about 27% half an hour before charging, and about 53% is charged in one hour, and the whole process takes about 2 hours and 37 minutes.
Standby power consumption test
If the charger is often plugged into the socket and not used, it will consume power, but it is very small. Many readers want to know whether the charger is wasted if it is always plugged into the socket, and the standby power consumption test session is to answer this question.
After the power meter test, the charger in 220V 50Hz no-load power consumption of 0.135W, converted to a year's loss of electrical energy is about 1.182KW·h, if the market price of electricity is 0.6 yuan / KW·h, the charger's annual electricity cost is about 0.7 yuan.
110V 60Hz no-load power consumption of 0.082W, converted down, a year of loss of electrical energy is about 0.718KW·h, if the market price is 0.6 yuan / KW·h, the charger's annual electricity cost is about 0.43 yuan.
Conversion efficiency testing
A charger is essentially a conversion device that is lost during the process and dissipated in the form of heat. We usually look at the charger above the parameter output 100W or 65W is the maximum output power that the charger can provide for the device, but the charger draws power from the socket is often larger, the following is the charger in the case of 220V 50Hz and 110V 60Hz AC input respectively carried out conversion efficiency test, the test results are as follows:
At 220V 50Hz, the output power of the charger in each voltage gear is fully tested: the input power of the AC terminal of the power strip and the output power of the USB terminal are measured in four gears, and the conversion efficiency of the charger is calculated from 86.77% to 90.99%.
At 110V 60Hz, the conversion efficiency of the charger varies from 88.37% to 90.04%.
Ripple test
Due to the switching power supply in the charger, the secondary output of the transformer is not direct current, and it needs to be rectified and capacitor filtered, that is, there will be ripple in the charger output. The charging head network uses an oscilloscope to test the ripple value of the charger output, compare with the national standard, and detect the output quality of the charger. The lower the ripple, the higher the output quality of the charger.
This is the ripple test using the charger at 220V 50Hz AC input, the ripple test is divided into no load (Y axis current in the histogram is 0A) and heavy load (the Y axis current in the histogram is non-0A), the highest 126mVp-p charger is at 5V2A output; the lowest 78mVp-p charger is at 20V0A no-load.
At 110V 60Hz, the maximum is 110mVp-p, and the charger is at 5V0A no load, and the minimum 80mVp-p charger is at 15V3A, 5V2A output.
Ripple test summary
The charger ripple requirement in the national standard is not higher than 200mVp-p, AmazonBasics 68W PD charger at 110V 60Hz, 220V 50Hz input voltage, all output power ripple peak-to-peak are lower than 200mVp-p this standard, good performance.
Temperature testing
As mentioned earlier, the charger will involve the problem of efficiency conversion, and the vast majority of the lost power is dissipated by heat, so the heat of the charger working for a long time is also an important part of the test. The charger is continuously output at 60W power for one hour, the surface temperature of the charger is collected, and the charger is placed in a 25 °C incubator throughout the experiment.
First, let's take a look at the temperature performance of the charger in the mains environment of 220V50Hz.
After one hour, the maximum temperature of the front of the charger is 63.8 °C.
The maximum temperature on the back of the charger is 61°C.
Look at the temperature performance of the charger in the mains environment of 110V60Hz.
After one hour, the maximum temperature on the front of the charger is about 70 °C.
The maximum temperature on the back is about 63.9 °C.
Full load stability test
After long-term use, will the charger be reduced due to overheating? The charging head network also tested the AmazonBasics 68W PD charger.
The charger gear is adjusted to 20V3A, with 60W power continuous output for one hour, the voltage and current during the test are horizontal and straight, there is no obvious fluctuation, and the use of full load for a long time is also quite stable.
Charging head net summary
AmazonBasics 68W PD charger as a product for the European and American markets, the appearance is simple and generous, white matte shell, rounded shape suitable for a variety of home, office environment, American standard double plug, folding design, LED charging indicator are routine operations, is a little larger, it seems that the foreign charger market is not very rolled.
In terms of performance, the AmazonBasics 68W PD charger is configured with two USB-C output interfaces that support maximum outputs of 18W and 60W respectively, while the output is 68W maximum. In the actual test, the charger compatibility of this pure PD protocol is general, and it is a bit unsatisfactory for domestic mobile phone devices.