Well, since 26800s are essentially dead, no sense in supporting them anymore.
That said, the S4+ v3 is 95% of the charger I need. The only other thing I’d want is 4x 26650 compatibility. Vapcell Dennis just dropped a pic of a USB-3.1 PD to barrel adapter that works with these chargers. I’m trying to get details on it.
OK, I thought 26800 is a new format which is on increase and wonder why my two main shops don´t have em.
To my knowledge, nobody has made a half decent 26800 aside from QB. AloftHobbies posted a little while back that the OEM electric car company that used these batteries went bankrupt and that QB is ceasing all production of the 26800.
Any news on the state of the 2 upcoming chargers?
Xtar plan to bring soon a charger with 1,5V LiIon capacity test, never thought Xtar will be faster than Vapcell
I know I´m annoying, bit have to ask again are there any news?
Anyone know if there’s an S4+ V4 in the works? I’ve thought of buying the V3, but the power bank function blowing up on some people’s units and not knowing if it’ll fit long protected button top 21700s has me thinking that I should wait for the V4, if there’s gonna be one next year.
I don’t know if there is a V4 in the making… !?
The power-bank fail was on a V2…
I did a short power-bank test on my V3 and it make it perfectly…
It can take big 21700 button top with usb charging port
I measured with full open slot the gap is somewhere at 76 mm ! And with a normal 21700 flat top, has somewhere 6mm more room !
On this video, at 18 : 45 he puts in the same 21700 batton top with the usd port…
Just came in today. The Acebeam battery feels like it could be 2mm longer and still fit. Thanks for your input!
Excellent, nice machiny, congrats !
(When im not using it, i put it back in the babble wrap and in the box, so after one year is like brand new… !)
Nothing at all, im glad that i could “help” you ! If you have any questions just let me know…!? Have a nice day !
If you don’t mind, I have a couple of questions. I’ve been topping up a few cells and have noticed that the charger is stopping only when the cells hit 4.22-4.23 volts. That’s measured with a multimeter and another charger I have, because the display voltage on the Vapcell seems to stop at 4.20 volts. Does yours do that? Should I be worried about this?
Yes it stops at 4.20V ! For me no, there is no reason to be worried ! I never made any “check up” although i have a normal multimeter… !
Probably the charger just “cuts off” a little bit later… !? Im pretty sure that the batteries can handle a little bit more Voltage without any problem - issue… !?
At some point i was charging 4 - 18650 and 2 - 21700 per day, on multiple brands and models of batteries mostly flat-tops and 2 Fenix protected, and i never had or noticed any problem by a “naked eye” of course… !
I simply put the batteries for charging on AUTO and i pull them out when the charger in beeping (because i know that the charging process is going to take some hours, im turning the display OFF and i turn it back ON when im guessing that is about time to be ready… so the display doesn’t stays ON all this time…) !
Some chargers do indeed stop updating their displayed voltage at charge termination, remaining at the target CV charge voltage following charge termination. I can’t think of a GOOD reason for such a design, and do not like or approve of such design. In essence, they ‘conceal’ evidence of any over-charging from the user. My XTAR VP2 is such a charger, and this behavior was noted twice in HKJ’s review, and he apparently disapproved of it as well:
“The voltmeter can show voltages from 0.01 volt to above 4.35 volt, but will freeze the reading, when it is above selected charge voltage and not resume updating, before voltage is below again.”
“Sadly it will not really work above max. charge voltage: it will show one value and then stop updating.”
Personally,I expect the voltage display of a charger to accurately display the actual voltage of a cell in a slot at essentially all times, including following charge termination. I do not believe a charger should demand that a user have / use a standalone voltmeter to see what voltage cells are actually being charged to. If someone knows of a good reason why one would do otherwise, I’m ‘all ears…’
The charger I got is definitely defective.
Earlier today I charged a half empty 50S and P45B. I stopped both when they were sitting at 4.20 volts for ten minutes, as indicated on the display. Up until about five minutes before I pulled them, the P45B was still taking 3 amps and the 50S 2.5 amps. After letting them rest an hour, guess what their voltages were? The P45B measured 4.16v on the multimeter, 4.17v on my Fenix charger. The 50S: 4.13v on the multimeter, 4.14v on the Fenix. I think the percent capacity the S4 was showing was mostly correct though: both batteries showed 90% when I took them off.
I’ve all ready emailed Wurkkos about it, cause I’m certainly not using it again.
What’s the defect you’ve identified?
Are you seeing voltage sag as a result of the high charging current? Or do you have a different issue I don’t understand?
Yup, I think everyone would expect the same, to “freeze” the display is downright misleading!
Do a test again, but let the charger to make the full circle of charging, and let the battery on until the charger beeping that is ready… !?
Northman, from my understanding of what you are describing, the charger seems to be working within spec. Lithium ion battery spec sheets generally put the charge voltage at 4.20 +/- 0.05V, so under 4.25V is actually fine.
Similarly, the manual for the S4+ says its output is rated +/- 1% (4.20 +/- 0.042V). The charger probably actually believes it is at 4.20 V, but its own measurement is off by that much due to normal tolerances.
Example Samsung 30Q datasheet here:
It’s still an issue with the V3, from V2, so it might be in V4…
I’m happy with the S4 V3, but I don’t use the USB. Taped it off on mine.
My Vapcell S4 Plus V3.0 is working perfectly so far, the failure with the power bank function was on a V2 !
