Review of MOMAX 35W PD Travel Power Adapter (U9A)
In today's world, electronic devices need to be charged no matter where or when they're used. A multifunctional power adapter is one solution to this problem. And today, we got this MOMAX 35W PD Travel Power Adapter, whose plug works in over 200 countries and regions, making it perfect for travel. Plus, it can charge a wide range of devices. So, let's take a closer look at how well this power adapter actually performs.
The MOMAX 35W PD Travel Power Adapter has a classic design pattern on the packaging, using a red background instead of the previous blue-and-white color scheme. The front displays an appearance of the product, while the product name and model (U9A) are located at the lower left corner. The white section at the lower right corner indicates the types of devices it supports.
Open the front cover, and the detailed instructions are printed on it for users to start quickly.
The box contants a manual and the adapter itself.
The MOMAX 35W PD Travel Power Adapter uses a fire retardant PC material for its outer shell, which has a matte texture finish and rounded edges for a sleek look. The front panel has a silver coating design, giving the power adapter a professional and sophisticated feel.
The "1-World 35W" is printed below the front AC socket, which represents two critical features of this product. You can insert the AUS, US, EU, and UK plug on the front, the compatibility is pretty good.
You can also use those three toggle switches to switch between AUS, US, EU, and UK plug, a slight twist can turn the US plug into the AUS plug.
It also has two USB-C and two USB-A ports at the bottom with black plastic sheets, much better than competitors.
After connecting to the power supply, the LED indicator in the middle will light up.
And you can even see the internal plugs on the back.
There are two 10A fuses inside, so even if the fuse burns out, you can immediately replace it with the spare one.
The MOMAX 35W PD Travel Power Adapter features a safety lock function that requires you to push and slide the toggle switch to extend or retract the plug. Only one type of plug can be extended at a time, and it will automatically lock in place once fully extended.
The two-pronged plug is for US standards, while the metal plug angle can be manually adjusted to convert to Australian standards. It has a output power of no more than 2500W.
The three-pronged plug on the socket is for UK standards, also with a output power of no more than 2500W.
Lastly, the round cylinder design of the socket's two-pronged plug is for European standards, with the same output power.
And all specs info are printed on the back. Model is UA9. The AC part can support up to 2500W, and the DC part can support input of 100-250V, 50-60Hz 0.8A.
The output power for a single port can be up to 35W, 15W, and 12W; The output power for two ports can be up to 20W and 15W. Finally, the output power won't exceed 20W for all ports.
The length of the MOMAX 35W PD Travel Power Adapter is about 54mm (2.13 inches).
The width is about 53mm (2.09 inches).
The height is about 71mm (2.80 inches).
And the weight is about 148.6g (5.24 oz).
Exploring comprehensive protocols can help users choose devices based on their individual needs, leading to a more optimal fast-charging experience.
The POWER-Z KM003C shows the USB-C1 port supports FCP, SCP, AFC, MTK, PD3.0, QC4+, DCP, Apple 2.4A and PPS protocols.
It also supports four fixed PDOs of 5V3A, 9V3A, 15V2.33A, 20V1.75A, and a set of PPS.
And the USB-C2/C3 support DCP and Apple 2.4A protocols.
Same thing goes to the USB-A1/A2.
Next, let's take a closer look at the specific experience of using this adapter. ChargerLAB will provide a comprehensive review, including compatibility testing, full charging testing, standby power testing, and other aspects to give you a full understanding of this device.
The MOMAX 35W PD Travel Power Adapter integrates three USB-C ports and two USB-A ports, with a diverse range of protocols. The compatibility test phase clearly evaluates the charging performance for each device. In this review, dozens of different models were tested. Below we'll see how well this adapter can provide fast charging for phones.
Firstly, we tested the USB-C1 port of the MOMAX 35W PD Travel Power Adapter. We used a POWER-Z KM003C connection to test the iPhone 14 Pro Max, which showed a reading of 9.09V 2.95A 26.85W. The screen displayed a successful trigger of the PD fast-charging protocol.
When connecting the MOMAX 35W PD Travel Power Adapter to the 16-inches MacBook Pro M1 Max, the POWER-Z KM003C showed a reading of 19.74V 1.67A 33.05W. This result indicated a successful trigger of the DP fast-charging protocol, almost reaching the maximum power output of the adapter, showing excellent compatibility.
Similarly, when connecting the MOMAX 35W PD Travel Power Adapter to the Nintendo Switch in its TV mode, the POWER-Z KM003C showed a reading of 14.88V 0.95A 14.18W, successfully lighting up the Switch.
We have compiled all of the test results into a bar chart. For most PD devices, the charging power can be more than 30W or the highest charging speed the device can achieve, but for some Android phones, the current cannot exceed 2A, so the power is under 18W.
Next, let's take a look at the USB-C2/C3 ports of the MOMAX 35W PD Travel Power Adapter. Using a POWER-Z KM003C connection to test the Samsung galaxy S22, we found a reading of 4.95V 2.89A 14.32W.
After compiling and creating a new bar chart, we noticed that the USB-C2/C3 ports lacked corresponding fast-charging protocols compared to the USB-C1 port, resulting in a significant reduction in charging power. The highest charging power was observed with the Samsung and Red Magic models, which could reach around 14W. Most other models maintained a charging power within the range of 7-10W.
Finally, let's take a look at the USB-A port of the MOMAX 35W PD Travel Power Adapter. Using a POWER-Z KM003C connection to test the Xiaomi 11 Pro, we found a reading of 4.99V 1.52A 7.59W.
Finally, let's take a look at the performance of the USB-A port on the MOMAX 35W PD Travel Power Adapter. Similar to the USB-C2/C3 ports, the USB-A port lacks corresponding fast-charging protocols compared to the USB-C1 port, resulting in a decrease in charging power. The bar chart shows that the charging power is on par with the USB-C2/C3 ports.
As previously mentioned, we have tested the fast-charging compatibility of the three ports on the MOMAX 35W PD Travel Power Adapter. Now let's take a look at the power distribution when multiple ports are being used simultaneously.
The MOMAX 35W PD Travel Power Adapter can output power from all five ports simultaneously. Using a POWER-Z KM003C to test the charging performance, we found that USB-A1 charged the Nubia Z30 Pro with a power output of 4.692V 0.43A 2.02W; USB-A2 charged the Redmi K50 at 4.60V 1.41A 6.50W; USB-C1 charged the OnePlus 9 Pro+ at 4.87V 0.04A 0.20W; USB-C2 charged the Samsung S21+ with a power output of 4.68V 0.73A 3.14W; and USB-C3 charged the iQOO 10 Pro at 4.57V 1.52A 6.92W.
Next, let's use four ports at the same time. Using a POWER-Z KM003C to test the charging performance, we found that USB-A1 charged the Nubia Z30 Pro with a power output of 4.62V 1.09A 5.06W; USB-A2 charged the Redmi K50 at 5.04V 1.35A 6.82W; USB-C2 charged the Samsung S21+ at 4.75V 1.12A 5.32W; and USB-C3 charged the iQOO 10 Pro at 4.75V 0.22A 1.05W.
Then, let's reduce another port to see what's the difference. Using a POWER-Z KM003C to test the charging performance, we found that USB-A1 charged the Nubia Z30 Pro with a power output of 4.75V 1.12A 5.32W; USB-A2 charged the Redmi K50 at 4.77V 1.12A 5.32W; USB-C2 charged the Samsung S21+ at 4.75V 1.12A 5.32W.
Finally, let's only use two ports at the same time. Using a POWER-Z KM003C to test the charging performance, we found that USB-A1 charged the Nubia Z30 Pro with a power output of 5.05V 1.43A 7.25W; USB-A2 charged the Redmi K50 at 5.06V 1.29A 6.50W.
Full Charging Test
Next, we'll use it to fully charge the iPhone 14 Plus.
The adapter will be put into a 25°C (77℉) thermotank throughout the test. Here is the charging curve made by the PC software of KM003C.
After turning on the power, the adapter trigger 9V voltage right away, and the power remains stable at around 26W for the first 17 minutes. Afterwards, the power fluctuates between 13-26W. At the 38th minute, the power stabilizes at around 15W and continues to charge until the 45th minute. At the 51st minute, the device's voltage drops to 5V, and the power drops to around 6W. The device enters trickle charging mode at 1 hour and 22 minutes and charges until full, taking about 2 hours and 6 minutes in total.
ChargerLAB found that, unlike other chargers previously tested, the charging power of this power adapter fluctuates between 13-26W during the 17-38 minutes phase, which is not stable and pretty weird. Most of the chargers previously tested by us remained stable at around 20W during this phase and did not exhibit such power fluctuations.
We also plot it into another curve to see how fast it can be. It can charge the iPhone 14 Plus to 50% in 26 minutes and 80% in 51 minutes, and it also reaches 100% in 2 hours and 6 minutes.
Standby Power Test
Many users are curious about whether power adapters left plugged into sockets but unused will consume energy, and if so, how much. To address this concern, we conducted a standby power test by plugging the adapter into a socket connected to a BEICH Power Meter and measuring the results. Here are the details of our test findings.
The power consumption at 220V 50Hz is 0.071W, and 0.049W at 110V 60Hz, which is about 0.62 and 0.43KW·h in one year, respectively. So, you do not need to worry about the waste of the electricity.
Conversion Efficiency Test
Power adapters are fundamentally devices that engage in energy conversion, which can lead to some degree of power loss in the form of heat. As a result, the actual power draw from the outlet may be somewhat higher than the rated power specified on the adapter. We conducted testing on the MOMAX 35W PD Travel Power Adapter to assess its conversion efficiency under two different AC input voltages: 220V 50Hz and 110V 60Hz. The following chart outlines our test results.
The conversion efficiency varies from 87.06% to 92.08% at 220V 50Hz, and the conversion efficiency varies from 87.16% to 91.34% at 110V 60Hz. Even the lowest value can reach more than 87%, and some can even reach 92%, whuch is pretty high.
Power adapters rely on switch-mode power supplies, which means that the output from the transformer's secondary winding is not direct current and must be rectified and filtered by capacitors before being outputted. As a result, ripples can exist in the output signal. To evaluate the quality of the adapter's output, ChargerLAB employs an oscilloscope to test the ripple value of the converter's output and compare it with industry standards. In general, the lower the ripple, the higher the output quality.
Firstly, let's check out its ripple without load. When the output is 20V 0A, the highest ripple is 83.2 mVp-p and 79.6 mVp-p, respectively. When the output is 5V 0A, the lowest ripple is 37.2 mVp-p and 35.6 mVp-p, respectively.
Then, move to the ripple test when loaded. The ripple at 220V 50Hz is higher than 110V 60Hz in all four outputs. Like the no-load, the highest and lowest ripples correspond to 20V and 5V, respectively. The maximum ripple is close to 200 mVp-p, which is higher than some high-power chargers. Not very good.
Power adapters are essentially devices that engage in energy conversion, and as such, they typically experience some degree of power loss during the charging process, which is then emitted in the form of heat. This generates heat during use. To evaluate the performance of the MOMAX 35W PD Travel Power Adapter, which supports PD 35W output, we conducted a test by placing it in a 25°C (77℉) thermotank and measuring the surface temperature after one hour of use with a 20V1.75A load.
Under 220V 50Hz, the front is 66.2°C (151.16℉).
And the back is 51.7°C (125.06℉).
Moving on to the 110V 60Hz.
The maximum temperature on the front is 62.2°C (143.96℉).
And the maximum temperature on the back is 54.3°C (129.74℉).
The temperature data was summarized in a bar chart, indicating that there was little difference between the temperature tests of the power adapter under the two different voltages. The surface temperature of the adapter remained between 51-67℃ after one hour of use with a load. Under the voltage of 220V 50Hz, the highest temperature recorded was 66.2℃, and under the voltage of 110V 60Hz, the highest temperature recorded was 62.2℃.
Overall, the MOMAX 35W PD Travel Power Adapter demonstrated its ability to maintain temperature levels within acceptable limits, with the highest temperature recorded during output under 220V 50Hz and 110V 60Hz being 66.2℃. This satisfies the requirement of IEC62368 from the International Electrotechnical Commission (IEC) for electronic and electrical equipment testing that the temperature should not exceed 77℃ during testing.
Summary of ChargerLAB
The MOMAX 35W PD Travel Power Adapter offers a wide range of plug/sockets compatibility, including US, EU, AU, UK, 2-prong, and 3-prong varieties, with no limitations. It features five USB ports, including three USB-C and two USB-A, with one port capable of delivering up to 35W of PD fast charging.
In terms of charging performance tests, the USB-C1 port is capable of providing PD fast charging for most mainstream smartphones, with a maximum charging power of 33W. Meanwhile, the USB-C2/C3 ports can deliver up to 15W, while the USB-A1/2 ports can provide 12W. When all ports are in use, the total output power is 5V4A 20W.
Under two different AC input voltages, standby power consumption of the power adapter did not exceed 0.071W when compared with unloaded power standards. Furthermore, its measured conversion efficiency under the same conditions ranged from 87.06% to 92.08%. Additionally, when tested with an iPhone 14 Plus, it took just 51 minutes to reach 80% battery capacity and approximately 2 hours and 6 minutes for a full charge.
Regarding quality, ripple and temperature tests revealed that the adapter's ripple values remain stable at around 160mVp-p under heavy load conditions. Furthermore, the temperature did not exceed 66.2℃ after being fully loaded with 35W power for an hour in a 25℃ environment under two different voltages.
Overall, the MOMAX 35W PD Travel Power Adapter boasts excellent versatility for its compatibility with various plug types in over 200 countries and regions. Its three USB-C and two USB-A multiple ports offer flexibility for charging smartphones, tablets, business laptops, and other devices, eliminating the need for multiple chargers and making travel more convenient.
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