Blitzwolf cables are good, IMHO.
Have tested quite a lot of cables and they end up high in these tests, about the same level as the Anker cables. Haven't tested the new powering cables from anker yet, but a buddy of mine did test them with the same setup as myself, so I have that data to compare to.
Bought this BlitzWolf® Ampcore BW-MF8 2.4A Lightning Braided Data Cable 6ft/1.8m With Magic Tape Strap for my nephew recently, and he is quite happy. Much sturdier than the Apple branded ones. Overall cord resistance was measured at just ≈50% more than a brand new stock cable despite its 82.88% additional lenght (by some guy on a youtube clip). Considering the stock cable gets soo easily damaged, knowing these facts there is no reasonable point in buying them at all (they're meant to fill their greedy pockets, of course).
More likely to be the phone’s battery. As li-ion cells age, they become slower to charge. I’m fairly certain my own phone takes about twice as long to charge as when it was new, for a much reduced battery capacity.
Oh, there's a newer version of that Juwei? Must get me one of those, then :)
Regarding your QC question , I don't have any ideas. Unless there's some kind of active electronics in the cable, I couldn't say why that one cable just did 5V only. Because it's "just" a cable, it really doesn't care if you send 5V or 12V through it.
Regarding those different readings : don't sweat'em too much, its tens of millivolts and tens of milliohms in difference, so their influence on the results is also minimal.
Hi! I'm some guy on a youtube clip (probably) :)
Qualcomm QuickCharge protocols require nothing special in the cables, it's all about negotiation. Thence, it's likely that power negotiation failed on the APC M5 cable and it reverted to some other mode. This can happen if the cable has some sort of damage in the data lines; it can be a slight, intermittent failure. I'd test such cable with actual data transmission (like copying some files from computer to phone/tablet and/or vice versa).
fixed it, aged batteries actually lose capacity, thus the only reason for them not being charged “faster” is because of an unusually long and slow constant voltage phase. If you do not allow your device to reach that charging phase (like I do), it actually charges “faster”. This is not really true, of course, as it is due to the lesser battery capacity.
Yep I figured that might be the case also 
My nephew just asked me to grab another BW-MF8 cable for a friend of him. They seem discontinued, and now they're selling a downgraded and more expensive BW-MF10 version. You just lost another customer here Banggood Bangbad.
Cheers :-)
Originally posted on Tue, 07/17/2018 - 13:43. Edited to add joke.
I like your spreadsheet
There seems to be a few typo’s for the Anker cables. Their site, for some weird reason, only lists AWG for the basic PowerLine
30cm - 24AWG
90cm - 20 AWG
120cm - 20 AWG
is what I got from their site.
I think that question can’t be answered without knowing the AWG of the power wire.
The construction can be super strong but if the wires are thin then the losses will be bad.
OK…… thanks ZoomieFan.
[quote=ZoomieFan]
Thanks, I got these numbers from a little round of googling, so I'm stickin' to them :)
If you want the best of the best micro-USB cable, here it is:
Both are 18AWG USB cables. So, top of the top quality :+1: 
Thanks BSM… good info. :+1:
Simply having large gauge doesn’t make a cable good.
The flexibility and durability of the insulation, the quality of shielding, the reinforcing cables inside, the joining between cable and connector, and many other things also matter.
Having had a Dash Charge cable which uses 18AWG wires, and is a great quality cable, and the fact that UGreen cables are great in general, I would have no problem that it is a high quality cable.
Ugreen is definitely one of the better brands, but I’m just saying that in general it is a bad idea to only consider wire gauge.
+1
You are right.
As you said, there are many factors in making a good USB cable.
The other problem with using thicker wire gauge is that flexibility is also affected. And the cable is made even heavier and thicker.
measure the cable resistance, you can use out UM series (um24, um25, um34) to measure the cable resistance
this video show how to measure
Thanks! The more advanced meters now do this automatically. You plug them in directly to the supply, then with the cable in between just like you say, and it calculates the difference. Only thing is most meters only have male USB A in or micro USB, so you can only test micro USB cables. Unless you have this:
Converts micro USB, USB C, Apple Lightning and even direct + and - into female USB which you can then plug your meter into.
I had already bought the Qoopow Qualmeter before I found that though. Yes it’s overpriced, and doesn’t give you direct results.
