Does it have a 3.7v 'STORE' mode like the VC8?
slmjim
No discharge function?
Not to sound rude but why didn’t you design it correctly the first time. So now everyone that bought the vc4 is expected to run out and buy a vc4l?
This is why miboxer chargers are the absolute best. They are designed correctly from the beginning. I can charge 4 x 26650’s in my miboxer and they don’t advertise that as a feature either.
XTAR, you should have a trade in program.
There’s one review on amazon claiming it doesn’t work with other USB-C cables other than the included one…
Xtar can you explain a bit more on that matter? Does it support any sort of fast charge or just 5V 2.1A? Does it work with USB-C to USB-C cables?
Just my guess…
Based on just the infos above, I think the VC4L is just meant to update the earlier VC4 model in 2 aspects:
- a more modern USB input port (from the uncommon USB-to-DC cable to the more ubiquitous USB-type-C port)
- make slots longer
Based on specs, it appears everything else stays the same, even the charging current (outer slots can charge up to 1A, while inner slots charge only up to 0.5A), and the total charge current are limited also based on the USB power source and the number of battery slots being charged…
I don’t think it’s meant to supplant the VC4S which is the more advanced model (I do wish they make the VC4S have a manual charging current selection, due to the issue where it can charge too fast (high current) for low-resistance but small-capacity batteries like new AAA batteries charging at too high current on the VC4S).
I’m not certain it’s fair to say they designed the VC4 “incorrectly” - as far as I can tell, it was released in early 2015.
For comparison, the USB-C specification was only finalized in August 2014, and 21700 cells began to see adoption in 2017.
So I’d actually say it had a perfectly reasonable design, considering what technologies were mature (or even in existence) at the time of its release.
Hooked my dad up with one of these…truly a step up!
1A max charge current? Looks like a bad joke for 5000mAh@21700 batteries, 5+ hours of charging! USB-C with no support for QC or PD - is it really 2021 now?
Oh ok, I thought 21700 existed in 2015.
I tried my vc8 with a generic usb c cable, and their ac adapter, it works but it would not charge at 1,2,3A currents, it was under 400ma, once i plugged their wire got 3A.
That is so dumb, they clearly can make a properly functional usb PD charger because the PB2s exists. If they could scale up the PB2s to 4 bay and add ni-mh support (even if the powerbank function was disabled) then I’d be buying one.
Make a 30W AC adaptor (and support USB PD), and make it to support 1.5A charging on all bays simultaneously (probably this would need a bit more advanced cooling mechanism to be implemented), then it will be a much more up to date design.
People nowadays are a bit less patient 
This VC4L charger supports USB-A to USB-C and also USB-C to USB-C cables. If your phone charging cord with Type C, can also be compatible.
Thanks! 
Thanks for your kind suggestions for the VC4S charger, we will feedback to engineers! :+1:
Just got my vc4L and it does not charge with a C to C cable. A to C works fine.
Will be returning it though because I wanted the c to c charging
Hi, the VC4L can also charge with C to C cable, pls check the pic below.
Both USB-A to USB-C and USB-C to USB-C cables are fine. May I know what kind of cable you use?
I bought one of these because I like the VC4. I’m charging some protected 21700 cells now. I like the new usbc plug too I wont have to worry about bringing an extra cable with me when I travel.
Ok so I’ve tried various usb c to c cables I’ve got.
Didn’t work with any 100w rated cables I own, Anker, choetech and Spigen. I can link the exact cables if needed when I’m on the computer.
It works with the 60w rated cables I have, various ones from ugreen, Anker, choetech, spigen. The only 60w cable it didn’t work with was a usb IF certified cable from choetech
So it does work with some cables but can’t seem to negotiate with a 100w rated cable so at the very least it would seem like the port hasn’t been implemented completely as it should still charge.
XTAR - can you please update your analyzing chargers to accept protected 21700.