XTAR VC4

[Crazyeddiethefirst]

As long as it's not melting, or catching fire, you don't require anything else.

Chris

So today I am assembling my chargers, and I inadvertently grab the wrong cord(This is where I should say that I NEVER mix up my cords-I have a "foolproof" process, nice simple color coded power strips and power cords....but due to a move I was forced out of my routing and had to use one power strip for three chargers-I'm an idiot sometimes)....I grab the wrong cord, plug it in and have flashing lights and a melting VC4...You can't fix stupid....

 

[zipplet]

The only USB Power adapter that's working for my Xtar VC4 is the Linke Q135 Qualcomm Quick Charge 2.0
It's giving me a solid 1A @ 2 & 0.5A @ 4

While it's excellent this is working for you, please can I remind people to try cleaning their USB ports (they might not look dirty) if they have trouble with a high quality USB PSU. The VC4 is demanding, but with a good PSU (the quoted one here may be good, Apple iPad chargers are good, Anker multi-port chargers are good) you will have no issues - as long as the USB socket and plug contacts are clean.

It's fiddly, but get some rough (recycled) paper and fold it until you end up with a strip that fits slightly tightly into the end of the usb PLUG. Use it on the charger first, gently (you might see some black marks on the paper - that's good - it means it is cleaning the socket). Then use the other side to clean the plug, even if the charger cable is new. That will resolve the issue unless your power supply really is not delivering enough power. While you're at it, give the end that fits into the VC4 a quick rub with a clean cloth (the barrel plug).

In Japan, they sell special products for cleaning USB ports (search Amazon Japan for USBポートクリーナー) that work very well, but for the plugs I use the strip of rough paper method.

 

[zipplet]

So today I am assembling my chargers, and I inadvertently grab the wrong cord(This is where I should say that I NEVER mix up my cords-I have a "foolproof" process, nice simple color coded power strips and power cords....but due to a move I was forced out of my routing and had to use one power strip for three chargers-I'm an idiot sometimes)....I grab the wrong cord, plug it in and have flashing lights and a melting VC4...You can't fix stupid....

Ugh, I have almost made that mistake and I wish that they used a standard USB socket for the input rather than the barrel plug. That's the only strike against the VC4 in my book.

 

[Newlumen]

Guess what guys? I accidentally turn on my nitecore ec4 modified light inside my holster... When I check the voltage on Keeppower 18650 protected cell, it read 0 volt.. So i put the cell back into my vc4, it start charging from 3.0v.. So far so good. Vc4 0v activation function is nice to have..

 

[Xiphex]

Zipplet - I connected the VC4 to my Anker A7515 USB 3.0 60W PowerIQ Hub. It gave me a 0.2A charge rate

 

[zipplet]

Zipplet - I connected the VC4 to my Anker A7515 USB 3.0 60W PowerIQ Hub. It gave me a 0.2A charge rate

That should work! Did you connect it to the "IQ" ports or the USB 3 ports?
If the hub is fully USB 3 compliant, then it will limit the current when connecting it to the USB 3 ports.
If you did indeed use one of the IQ ports, then your cable/connections might be dirty - please see the recommendations I posted earlier - I also recommend getting hold of a cheap USB power meter.

 

[CelticCross74]

I freaking love my VC4. I have it plugged into the new Xtar 6 USB port wall wart which gives full 2.4(I think)power to each USB slot. Love it. No more lagging due to weak wall wart. For some reason that I do not know the VC4 is the only one of my chargers that will charge my li-ion cells to 4.20v no matter what. I have had a couple "problem" cells that would not charge past say 4.15v but put it on the VC4 and it takes it all the way full up. Now have the VC4, 2xVP2's and the huge 8 port Maha for my NiMH cells...cannot remember the model number but it is the one that takes all NiMH sizes and has a huge power brick along the power cord. Even on slow charge it tops off even my 11000mah Powerex D NiMHs in just a few hours..