Chapter in this post:
The manufacturer Equinux recently provided me with two copies of their new USB-C to Lightning cables for a test. The cables are called "tizi flip Ultra" and allow iPad and iPhone to be charged via the USB power delivery standard. The devices charge with a higher voltage (otherwise only with 5 volts) and you can charge them on a USB-C power supply (or on a MacBook). Faster charging only works if the USB-C power supply unit is USB-PD compatible.
I used my iPhone XS for my test. As a USB-C power supply I have the tizi filling station, which also provides a USB-C port. Of course, you should get similar results with other USB-C power supplies that support USB-PD, but depending on the chipset in the power supply, worse values can occur here.
According to the manufacturer tizi, not all are USB-C to Lightning cable equal. They all use a USB PD chip that negotiates the charging profile with the connected device. The first deviations can already occur here. The next differences can be caused by the cables used themselves. If the cable does not provide a dedicated line for the charging current, this can result in a lower output power.
With a diagram with sample values, Tizi would like to show how different the charging speed and performance can be simply through the use of different USB-C to Lightning cables.
At around 20 euros for the 0,5 meter and 1,0 meter cable and around 30 euros for the 2 meter cable, the tizi products are not cheap cables per se, but there are still a few Euros cheaper than the Apple cables, which cost 25 and 39 Euros in the Apple Store.
With a length of 2 meters, there is currently hardly any other provider except Equinux tizi or Apple. Even if you look at the Belkin Boost Charge Cable looks, which with a length of 1,2 meters also offer USB-C-to-Lightning with USB-PD, you have to get used to prices like those of Apple. In terms of price, the cables from tizi are already in the mid-range - but in terms of quality they are certainly very high.
If you are looking for comparison values with cables from other manufacturers in my test, you will unfortunately not find what you are looking for. For correct comparison measurements, I am currently still missing a selection of cables from other providers, but I might try one of the cheaper China cables (e.g. anchor) for a few days to see whether you can really notice any differences.
In my test, the aim is to see how fast the iPhone XS actually charges via USB-PD and whether the difference is so clear that it is worth buying a new charging cable.
I took the measurements with my iPhone XS. I did not measure the charging power with a USB-C multimeter, but directly with the Coconut Battery app. I think this gives you the best values, as this app shows exactly the electrical power with which the iPhone battery is currently being charged.
In both cases, the power supply was the tizi tank station, which has both a USB-C and three USB-A outputs. I save a comparison with the Apple power supply supplied with the iPhone, since this power supply is the biggest weak point if you want to charge your iPhone quickly. It simply doesn't deliver enough power to supply the iPhone with as much power as it requests when charging. So the first step to fast charging is buying a good power adapter like that tizi filling station USB-C with 75 watts of powerwhich, in addition to the iPhone and iPad, also provides enough power for a MacBook Pro.
I do not recommend the tizi filling station at this point because I would have been prescribed it by tizi, but because I have actually been using it myself since the end of 2017 (and also bought it myself). I use it as a charger on every vacation when I'm on the go with iPads, iPhone and MacBook Pro.
Charging with the "normal" USB-A cable took 30 minutes and started when the battery level was below 10%. Over time, the battery level on my iPhone XS increased by 44%.
Charging with the tizi flip Ultra USB-A cable also took 30 minutes and increased the battery level by 54%.
In my test you can see that the difference in the charging cable is only about 10% charge in 30 minutes. The iPhone drew around 15 watts from the power supply during that time (not to be confused with the CoconutBattery display, which only shows what is being fed into the battery). However, the original Apple power supply only delivers 5 watts, so that you only manage a third of the charge in the same time.
So the combination of a good power supply and USB-C to Lightning cable is important. If you use both, you can charge your iPhone or iPad quite quickly via USB-C Power Delivery. For me, this is particularly useful in situations in which I can only briefly plug the iPhone or iPad into the charger because I have to go straight away.
The above built-in graph that promises 2,8x faster charging of the iPhone XS is only true if you otherwise charge with the original Apple charger. As soon as you use a more powerful power supply, the factor that USB-C cable off power, already reduce to 1,1x.
Nicole from the Tizi team pointed out to me that the charging speed of the iPad and iPhone always depends on the temperature of the device. When the charging electronics detect that the iPhone or iPad is warming up, it limits the charging current so that the battery is not damaged. Of course, this is particularly noticeable when charging with USB-PD, since higher currents flow here and the battery becomes warmer for this reason. If the iPhone is actually cooler (without a case, etc.), the difference between charging with and without a USB PD is even more noticeable than in my test.
This is an effect that I noticed a few months ago on a cheap set of China cables. There were cables between 0,5 and 3 meters in length. While the shortest cable showed a reasonably normal charging speed, the charging current for the longest cable has dropped to almost 50%. For this reason, I was interested in whether this effect also occurs with tizi cables.
For comparison, I charged my iPhone XS on both the 0,5 meter short and the longest 2,0 meter cable. In both cases, the charging current leveled off at 1,7 amps (at 9,0 volts) after a few seconds (measured with my USB-C multimeter). So there is no disadvantage in terms of charging speed when using the long cable from tizi. This is probably due to the thicker, dedicated wire for the charging current inside the cable.
Jens has been running the blog since 2012. He appears as Sir Apfelot for his readers and helps them with problems of a technical nature. In his free time he drives electric unicycles, takes photos (preferably with his iPhone, of course), climbs around in the Hessian mountains or hikes with the family. His articles deal with Apple products, news from the world of drones or solutions for current bugs.
The page contains affiliate links / images: Amazon.de