VFLEX featured by CanWeFixThat on YouTube.
CanWeFixThat tests the Werewolf VFLEX Starter Kit with a Casio PT-100 keyboard and Sony PSP, showing how one programmable USB-C setup can replace the hunt for old barrel-jack power supplies.
View summary / highlights
[0:00] The universal power-supply drawer problem
CanWeFixThat opens with the familiar box of old adapters: wrong plug, wrong voltage, wrong polarity. The video frames VFLEX as a way to use a modern USB-C charger or power bank to power older devices with barrel-jack inputs.
[1:29] VFLEX Starter Kit overview
The kit includes three small programmable VFLEX adapters, a range of barrel-plug tips, and a storage box. The review also looks at a magnetic USB-C cable, MagSafe-style power bank, slim wall adapter, and USB-C meter.
[3:00] Adapter tips and polarity
The video shows the compact VFLEX module and the included plug adapters. White adapters are center-positive, while orange adapters are center-negative, which is especially useful for older electronics.
[4:17] App setup and USB-C PPS power sources
CanWeFixThat demonstrates connecting VFLEX to a phone, creating device presets, and scanning a USB-C power bank to confirm its supported fixed-voltage and PPS ranges before using it as a programmable power source.
[8:49] Powering a Casio PT-100 keyboard
The Casio keyboard needs 7.5 V center-negative power. VFLEX is configured in the app, verified with a USB-C meter and multimeter, and then successfully powers the keyboard from the USB-C power bank.
[11:25] Powering a Sony PSP
The PSP example switches to 5 V center-positive power. VFLEX is configured with a different adapter tip and successfully powers the PSP, with the USB-C meter showing its current draw.
[13:48] DIY adapter and conclusion
The optional DIY adapter is highlighted as a handy bench tool for bare-wire projects. The conclusion: VFLEX may not replace every permanent dedicated supply, but it shines for repair work, experimentation, travel, and portable power.
View verbatim transcript
Transcript generated from the video audio for accessibility.
[0:00] I think most of us have one of these, a drawer or a box full of all power supplies, and every
[0:05] time you need one you think, surely the right one must be in there somewhere.
[0:10] But then you start checking them. Wrong black, wrong voltage, wrong polarity.
[0:16] So the question is, can this tiny USB-C adapter replace all of this mess?
[0:21] Or is it just a more complicated way to avoid buying the right power supply?
[0:26] So today I picked two devices that show the problem very well.
[0:30] This case your keyboard PT100, you can also power it via a power supply.
[0:36] And you see it is 7.5V with center negative polarity.
[0:40] And at top of that, we have this old-style Sony PSP that needs 5V and center positive polarity.
[0:50] So two different devices, two different voltages and different polarity.
[0:56] And that is where this little VFLEX kit comes in, from the company Wewolf.
[1:01] The idea is pretty simple. Instead of hunting for the exact power brick, I can use the
[1:05] USB-C charger or a USB-C power bank. Set the voltage in the app, shoot the right adapter,
[1:11] and power all devices from something modern. And if you're new here, I'm markers,
[1:16] I fix and mod broken tech. And today I'm trying to turn USB-C into a power supply to power
[1:22] all devices. What could possibly go wrong? Where will sent me their WefLEX starter kit
[1:32] and some gadget that's getting along with it to test it out? But no money had changed hands.
[1:37] This is my own opinion and where will did not see the video before you did. So what have they sent me?
[1:43] The Weflex starter kit, you have the different adapters in there, you're three of the tiny
[1:49] magic devices that make it all happen. And you have the wonderful box where it comes all together.
[1:55] Then they sent me a magnetic USB-C cable, which is pretty cool. A 5000 milliamps power bank with max
[2:03] save. The USB-C wall adapter out of the room, but it's US only and I'm in the EU, so I can test it out,
[2:12] but I will show it to you anyway. And a tiny cute USB-C meter where we can see the voltage and how much
[2:18] amps are getting drawn. And everything of this I will put in the video description. A big thanks to
[2:24] where we'll send you the stuff. So in this video I will show you how it works, what we need,
[2:28] how we set up the app and how we use it to power a device. There are some pitfalls with USB-C,
[2:36] but we get to them. So first of all, this here is the starter kit. That is everything you need,
[2:44] basically, and a USB-C cable. And the USB-C power source, EG power bank or power adapter.
[2:52] And there is a catch I will show you in a moment. So and here we have the different adapters.
[3:00] Basically this here is the tiny little device. That's it. It's really small. Have a look. It's
[3:08] resting on my thumb. And one side is USB-C with an LED. On the other side we can plug adapters.
[3:16] And the adapters I'm talking about are these one years. So that's everything you get from the
[3:23] starter kit. And the pure white ones, these are all center positive ones. And you see there are also
[3:34] orange ones. And these are center negative. These are mostly important for older devices because
[3:42] in the past center negative was the biggest thing unfortunately. And there are some more on their
[3:48] website if I remember correctly. It is possible to buy them on their own if something is missing. And
[3:56] they are also labeled. For example, this one is called M. All this one is called A. So you have an
[4:08] idea which adapter is which. But before doing this we need the app. This here is the app. And you see
[4:20] it's telling us to connect the WeFlex via USB. If you're using an iPhone and you're using an
[4:27] iPhone that has no USB-C already, there are also adapters to plug lightning to USB-C.
[4:35] Will Android or newer iPhones you should be fine. And this here is the cable they sent me. What I
[4:44] like here is that it's magnetic. So let's do it. Let's plug it here and the other side in my phone.
[4:55] And what we see now we can give it a name. And we see it is giving us five volts at the moment.
[5:04] But there is something we need to do. In the inventory you could create presets. So for example,
[5:12] you can say, yeah, what's that for a device? For example, Casio, a KZO, a PT100 in case for a keyboard,
[5:21] can give it a photo, a model number, an adapter cable. These are the ones I showed you in a moment ago.
[5:30] These ones here. And then you can choose which one it is. There's also the selection for center
[5:36] negative and center positive. You can put a photo there, the voltage, the current rating,
[5:42] etc. But you don't have to do it. You could also just tune in the voltage and you are fine. But
[5:50] what you do need to do is power sources. Power sources could be, for example, this power bank,
[5:58] you see it's 5,000 milliamps, 20 watt of output. And we see here what it's capable of.
[6:06] It can do five volts, three amps, nine volts, 2.22M, 12 volts, 167 amps. And that's the important part,
[6:16] the PPS programmable power supply, that's what it stands for. And it says we can choose between
[6:24] five volts to 12 volts, was 1.67M. And not every UZPC power bank is capable of doing PPS, for example,
[6:34] all the ranges will slightly change. For example, this power brick over here, you see there is PPS
[6:41] from 3.3 to 16 volts and 2.5 amp max. So that's something you need to have an ion. When you use it,
[6:51] you need a power bank that can supply the needed voltage and yeah, amps you need for your device.
[6:58] And you need a cable with an e-mark in it, as I remember correctly. But there's everything down
[7:04] in the description. It's not as hard as it seems. Let me show you a way to get this into the system.
[7:11] That's pretty easy. So let's say at new power source and the manufacturer in this case is,
[7:18] where will the power source name is, I call MacPack. I could upload a photo, but I won't.
[7:30] I will enter the model number. Total power rating is 20 watts. It's a battery power bank.
[7:39] For the unit, we choose milliamp hours and say it's 5,000. And we just have one USB-C port,
[7:49] so we choose one. And now we can use this device to scan the power bank's capabilities and it will
[7:58] report it back to the app. To do so, we'll just click, scan port and enter scan mode. Now it says we
[8:07] can disconnect it and put it here. And when it's getting green, we know it's done with its scan.
[8:14] Now it is. Now we can plug it back into the phone and we will get the results.
[8:25] So now we see, okay, 5.43m's, 9.2.22m's, 12.1.67m's and so on, and the capabilities for the
[8:36] program will possibly be where you can choose, for example, 4.3 volts if you need it. So now we save it.
[8:47] And when we now go to the main page, we can say, let's have a look on the keyboard. Again,
[8:52] and we see here, we need 7.5 volts and here a center negative polarity. That means we can put here
[9:01] 7.5 volts. I will select the power source, the MacPack. We just configured a moment ago and everything
[9:11] is fine. So if you would select something that's not capable of providing the 7.5 volts, it will tell
[9:19] you here at this point. And the always on is fine. You can disable it as you can see. And now we need
[9:27] an adapter that fits there. So let's have a look. We need center negative, so with must be the orange one.
[9:35] And this one is too small, so it must hopefully be this one. And yes, it fits. On the other side,
[9:49] so it's programmed correctly, we can unplug it. This one needs to get into this and it's just one
[9:56] way fit, so you can mess it up. So we plug it. Now it looks pretty neat. Of course, we are not
[10:05] just trusting it that it's getting out these 7.5 volts. That's the cute little power meter they
[10:12] sent me also. And we can just put it in between. So this, this, and now we will just use the power
[10:23] bank. So we have a portable power supply. And we can see 7.49 volts. Nice. So that should be it.
[10:33] But let's measure it with the multimeter too. So center negative. So it should be like this.
[10:42] And we see 7.5 volts or nearly. So perfect. I mean, that's pretty cool.
[10:51] Okay, and to show you that there are no batteries inside here, nothing in. And it is
[10:59] now on, but nothing. Now we will plug it, turn it on, and we have music. How cool is that? So yeah,
[11:19] so this one is now programmed for the keyboard. So but there are more inside. Now let's try the
[11:26] PSP. Same thing here. I will remove the battery, better inside, not turning on. So now let's have
[11:40] look here. 5 volts center positive. We will grab another one. Why not? Let's use this one. And
[11:51] currently, I have no idea what the price will be in the future. One of these is, I think, 8 bucks
[11:59] around. $8, I guess. I will put it on the screen. So it's pretty cheap if you ask me. Of course,
[12:04] you need the adapters, but if you have the starter kit, you are fine. I think the starter kit is
[12:10] 45 bucks, but with it, you're very flexible and you can buy them on your own. So second one.
[12:18] Let's connect it. And 5 volts is always the default. It comes with it. 5 volt is perfect. So select
[12:30] power. It's the Mac pack and it says else. 3 amps would be the max. Perfect. We'll never use it.
[12:38] Yeah, this is it. So we can unplug it. And now we need another adapter cable. It's a yellow
[12:47] plug. So let's use this one. And I know that this jack is wonky, so it will be a little bit
[12:59] a contact issue. That's not a problem of the kit or the cable. It's just one of the PSP.
[13:05] As always, we plug it in, connected with our power bank. And yes, why not? Let's use the meter
[13:16] again to verify the voltages. It's 5 volts. So I told you it's a bit wonky in the connector,
[13:29] so I try to lay it flat. And we power it. It's getting green. And we see here,
[13:36] which drive I can a bit closer that it's drawing 260 milliamps. So that's working also fine.
[13:47] Perfect. Oh yeah. And they also sent me this DIY adapter. So we can just put it just plain
[13:56] bare wires inside and power whatever we like. So you could use it as a lab power supply.
[14:05] I mean, it's maybe not that convenient, but it's cool to have a laying around. This adapter is not
[14:11] included in the normal starter kit. It can be purchased additionally. I would definitely order it.
[14:17] I mean, why not? This flexibility is very cool to have. And it's not expensive either. So I will
[14:23] put the price on the screen now. Oh yeah. And this is the mentioned select wall adapter. They sent
[14:32] me with the US plug. I can't use in Europe unfortunately, but that's pretty slim. And we see the specs
[14:40] over here. It can go from 5.5 volts to 11 volts with PPS. And yeah, you see the other
[14:47] well. Yes, you can skip it if you would like a sorry from from 5 to 11. Pretty slim,
[14:53] not expensive. And we have two outputs here. Nice. So can we flex for place the whole draw of
[15:00] old power supplies? Not completely. I mean, if you have a device that needs a fixed power supply
[15:06] forever, then I would say it's much more convenient to have the original power supply or a dedicated
[15:13] one at hand for this specific device. The light be cheaper and simpler. Not always cheaper, but it
[15:20] could. For me, the real advantage is that I can fiddle around on my bench to test something out
[15:26] with all the different adapters and change in polarity very easy and convenient. And the way from
[15:32] the bench it's getting more interesting. So with the right views PC power bank with enough capacity
[15:37] and the right voltage profiles, I can run old devices or devices in general without a wall socket
[15:43] at all. I mean, how cool is that? So you can be sitting in the grass inside a park, grab your keyboard
[15:50] and play with it. I mean, yeah, maybe keyboards have batteries inside if needed, but you get the idea.
[15:56] So every device that you could power with it and you have a good power bank, you could use it on the
[16:01] go. And that is what it makes very special. So that is where we flex makes sense to me.
[16:06] Experimenting, repair works, travel. So it's a convenient package and you can put in the box the power
[16:14] supply, the little USB-C meter and all of the adapters. It will fit. It's a bit squished in, but it will
[16:22] fit. And you have an all-in-one package to power your devices on the go. And if you like the idea of
[16:27] making old devices work with the USB-C, I also made a video where I put USB-C directly into the
[16:34] device. You will find it here. Watch that one next. And as always, happy tinkering guys.
