Can confirm. Put in two vapcell 10440s. Resistance was in the mid or high 80s. Both at 500 on auto. I changed it by long pressing in auto mode.
IR was about 67mOhm for the 10440s when they started charging at 1000mA and started with 3.96V.
I bought this a few months ago and I generally like it. I noticed that it will charge smaller batteries like a 10440 at a higher charge rate than expected in auto. It also displays voltage at 4.20 when the battery is at 90% and charging. It would nice if the firmware could be updated somehow.
I removed the piezo speaker from my S4+ with some insight from oweban.
While removing the speaker, I noticed a date 2020-5-28 printed on the PCB.
It would be nice if Vapcell added a switch to turn the speaker on/off.
It would make a nice on/off slide switch
does anybody know if vapcell updated the firmware version to fix this issue reported by contactcr? and also is there a way we can check firmware versions?
Also, if you had an older one, can you get the FW updated?
Does anybody know if this will fit a Fenix ARB-L21-5000U with USB-C port without stressing anything?
the cell is about 77mm long
I know that HKJ measured 76.9mm, and I just want to hear from somebody with experience that this battery will fit normally without stressing, bending or anything.
76.9 is charger length, according to Lygate information.
The cell is 76mm, according to Fenix website info. You should have almost one mm spare in the length department.
I was so happy that the Vapcell S4 Plus charger fits my 21700 protected, usb chargeable Imalent and Nitecore cells, that I bought four of them.
For me, its multiple flashlights per room, and multiple fully extra long 21700 chargers per room, too. But no S4 Plus chargers in the kitchen or bathroom, yet.
lol.. not in the bathroom? That's the only place I need one ;)
I actually bought the UMS2 a while ago, which fits cells up to 80mm. But still thinking about this one...
It seems like Vapcell mostly fixed the issues with it. I’ll pick one up next month. This is about the best charger available now.
80mm long? Does that mean it accepts long batteries like the 26800?
I would like to know this too 
I am guessing it will only be able to charge 2 X 26650? Is that correct?Would they be the outside bays only?
Not being able to charge 4 X 26650 is a disappointment .My Folomov A4 could but Two of them had Display failures after just 6 months.
Vapcell S4 Plus can only fit 2x 26650s on the outer bays (bay 1 & bay 4).
Some chargers that can fit 4x 26650:
Liitokala Lii-600
SkyRC MC3000 (can fit 2x 32650 on the 2 outside bays)
Xtar VP4 Dragon (can fit 4x 32650 or 4x “D”-size batteries) = this is the widest 4-bay charger I’ve seen yet.
In post # 45 Tatasol Confirms it can take 4 X 21700? Is this true? HKJ sent.me pictures disputing this.Maybe that was version 1?
I can deal without 4 X 26650.If it can not do 4 X 21700 this is a No go.
It is shame my version 2 of Folomov A4 had 2 failures due to Display completely malfunctioning.That version 2 could accommodate 4 X 26650 and 4 X 21700.
Again these questions are for Updated version 2.
Thanks
Thanks.
I do not think there is a charger that exists can do the following: Especially be able to be purchased in USA.
Accomodate 4 X 26650 and 4 X 21700.
Must be able to do at Least 4 X 2Amp in each slot and preferably 2 X 3A in 1 and 4 slots.
Be able to see ALL info in 4 slots at once.
The only one I know is Folimov A4 and its version 2 has Too many issues primarily the Display Completely failing in Two.of them in less than 6 months.
I think the Mi boxer can do it but can not be bought in USA and is shipped from China by Amazon…no thanks.
EDIT- The SkyRc MC3000 may be able to do that. It’s way too expensive and I don’t need another analyzer. Not sure if you can read all four displays at once. Even so, I wouldn’t want it for $100. I want a simple charger like the Folomov A4…but it has to be relaible and not fail like 2 of the 4 I got.
Final conclusion…there is not one that will meet my requirements other than A4 which I will not get again because of issues already mentioned.
Mi boxer can do 4 x 26650. But I think they are out of business.
I forgot about the Miboxer C4-12 v2, which can also do 4x 26650 and 4x protected 21700, can charge 4x 3Amps.
They seem to still be in business…
To: Cochise334ever, the Vapcell S4 Plus can accommodate 4x protected 21700 at the same time.
Ok….Thanks.
Not sure why HKJ sent me 2 pics. One showing it can only hold 2 X 26650 and the other showing 2 x 18650 and 2 x 21700.Assuming it could not hold 4…because that was my question?
Only thing I can think of is that is version 1.
The dealer opens up in 20 minutes! Seems like I got my answers before they can tell me!
Thanks