With the AI-641, INIU offers a new USB charger with an output of a whopping 100W. The charger not only has 100W, but also 3 USB ports.
This at a price of under €50. Sounds very attractive at first! But how good is the INIU AI-641 100W USB C fast charger?
Is PPS supported? What about efficiency? Let’s find out all this in the test!
The INIU AI-641 100W USB C charger in the test
Like the other INIU chargers, the AI-641 has a very simple design. We have a matte black plastic housing.
This is actually quite simple to do, but the quality is above average. The charger is wonderfully solid and also appears “tight”.
With 62 x 32 x 63 mm and a weight of 220g, this can definitely be described as compact for the advertised power of 100W. However, it is not “unrealistically” small either.
So I would describe the dimensions and the general impression of quality as consistent with the advertised performance.
Connections of the 100W INIU charger
The INIU AI-641 has 2x USB C and 1x USB A port.
USB C 1 und 2 – USB Power Delivery 100W – 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A
USB A – Quick Charge 18W – 5V/3A, 9V/2A, 12V/1,5A
In principle, both USB C ports offer a power of up to 100W according to the USB Power Delivery standard. Accordingly, the USB C ports are not only suitable for smartphones, but also for larger devices such as notebooks or 100W power banks.
There is also a USB A port which can provide up to 18W according to the Quick Charge standard.
Throttling when using multiple ports
The INIU AI-641 has a maximum power of up to 100W. However, both USB C ports can deliver up to 100W?!
But this only individually. This means you don’t have to worry about which of the two USB C ports you use. However, if you use both, they will be throttled according to a fixed pattern:
USB C 1 oder USB C 2 = 100W
USB C 1 + USB C 2 = 65W + 30W
USB C 1 + USB C 2 + USB A = 45W + 30W + 18W
Full PPS level
Fortunately, the INIU 100W USB C charger offers the full PPS level on both USB C ports.
PPS is especially important for Samsung and Google smartphones. Since we have a PPS level with up to 5A, the INIU AI-641 can also charge Samsung “Ultra” smartphones with up to 45W.
However, if you use both USB C ports, the PPS level will be throttled.
USB C 1 – 5-11V at up to 5A USB C 2 – 5-11V at up to 3A
USB C 1 would still be able to charge Samsung smartphones with up to 45W, USB C 2 would still be able to charge up to 25W.
Which standards does the USB A port support?
With the USB A ports of INIU products, there are occasional surprises when it comes to the supported standards
However, the USB A port looks quite classic here. In addition to Quick Charge 3.0, only the usual standards such as Apple 2.4A charging, BC 1.2. Samsung AFC, Huawei FCP and SCP (with up to 25W) supported.
Stress test, this is where things get difficult
To check the manufacturers’ power output, I load all chargers with the maximum load specified by the manufacturer over a certain period of time.
For the INIU AI-641 this would be 100W. I do this with the help of an electronic load, which can really constantly draw this power from the charger.
Were there any abnormalities here?
Unfortunately the answer is yes. But we (apparently) don’t have a temperature problem, but rather another anomaly.
It could happen to my electronic load that the discharging process stopped after X minutes. I was able to restart it immediately and sometimes loading it with 100W ran for hours without any problems. In some cases the process stopped after x minutes.
I couldn’t see any pattern here. I tried different test devices, cables, etc., same result. Sometimes it works for hours, sometimes only half an hour.
I also charged the Anker 737 power bank on the charger and logged the charging process.
And here too you can observe a short break. I did not observe this problem on smartphones, my MacBook or Steam Deck.
In practice I think it will be hardly or not at all noticeable. Still a strange anomaly that I don’t understand 100%.
How fast can the INIU AI-641 charge?
Expected charging speed Apple iPads +++ Apple iPhones +++ Apple MacBooks +++ Google Pixel +++ Huawei smartphones + OnePlus smartphones + Realme smartphones + Samsung Galaxy smartphones (“S” series) +++ Windows notebooks (Dell XPS, ASUS etc.) +++
+++ = “perfect” maximum possible loading speed to be expected
++ = very high loading speed to be expected
+ = fast loading speed to be expected
0 = “Standard” loading speed to be expected
– = Slow loading speed to be expected
— = not compatible or only suitable to a very limited extent
Thanks to the power of up to 100W, the INIU AI-641 is well suited for a large number of devices!
The charger is of course ideal for smartphones from major manufacturers. Here I’m primarily talking about the Apple iPhones, the Samsung Galaxy models and the Google Pixel.
The charger can easily charge a current iPhone 15 Pro and Samsung Galaxy S24 Ultra at full speed at the same time.
Tablets such as iPads or game consoles such as the Steam Deck can also be charged at full speed on the INIU AI-641.
Thanks to the power of up to 100W, the charger can also be used for notebooks! However, for constant continuous load, I would always recommend the original notebook chargers. But in an emergency, the INIU AI-641 is absolutely capable of charging a MacBook or Dell XPS, for example.
How good is the voltage stability?
Voltage stability is no longer as important with USB Power Delivery chargers as long as they remain within the limits.
However, a stable voltage is also a sign of well-regulated electronics.
And that looks really good on the INIU AI-641! Especially at the 9V and 5V voltage levels we have almost perfect stability. The stability is convincing even at 20V.
Efficiency of the INIU 100W charger
High efficiency is important for many reasons. On the one hand, this is again a sign of current (and good) electronics, and on the other hand, high efficiency ensures less waste heat and of course lower costs.
I measure the efficiency of chargers in tests at different power levels. Here I compare the energy that is absorbed by the charger with the energy that is output.
How does the INIU AI-641 perform here?
Fluctuating is quite a good idea. At minimum load we have an efficiency of only 75.8%, which then steadily improves.
At full load we get a whopping 93.1%, which is an outstandingly high level of efficiency!
We also see this in comparison to other chargers.
Here the minimum efficiency is rather “average”, but then increases to an absolute best value.
Conclusion
The conclusion about the INIU AI-641* is a bit difficult for me. We have a fantastic charger here in itself.
This offers up to 100W according to the USB Power Delivery standard, has the full PPS range and can therefore also charge smartphones like the S24 Ultra at full speed.
We also have fantastic peak efficiency and very good voltage stability.
All of this packaged in a good case and at a very attractive price. This would make the INIU AI-641 an absolutely great choice.
However, the slight anomalies in the stress test are a small fly in the ointment. I don’t think it’s a problem in practice, maybe I just have a Monday model?!
Offer INIU 100W USB C fast charger, 3 ports laptop power supply GaN Tech… 🚀【100W Power Trio】Fast charging for three devices! 100W…⚡【Fast charging】High power for fast charging….🌟【1 for 3】Stylish charging station! The compact design…🎉【Compact powerhouse】Small but powerful! 35%…🌐【Universal Compatibility】Supports PD 2.0 and PD…
Still, it’s just a small flaw. Nevertheless, I would like to recommend the charger for now! Otherwise it’s very good and I think that in practice this problem will hardly or not be noticeable at all. I haven’t been able to find anything about this in the Amazon reviews either, so maybe it really is a Monday model for me?