Test/review of Vapcell S4+ fast charger

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hasddie293
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Am I the only one who see the voltage stay above 4.2 plus?

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HKJ
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hasddie293 wrote:
Am I the only one who see the voltage stay above 4.2 plus?

The top of my charts are 4.25V, i.e. the maximum allowed charge voltage for LiIon, the charger do not reach that during charge.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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HKJ wrote:

I would prefer the screen stayed on while charging. A keypress could be used to turn if off if you do not want the light.

I hear you. The @#$% auto turn off with electronics stuff of nowadays can be very annoying. As an example, try to use a modern multimeter like the Bside ZT102 or Aneng 8002 (Zotek ZT102 both) to monitor some voltage, for example. Every @#$% 14 - 15 minutes it wll make an alarm noise Facepalm and then shut off. Not only it forces you to “reset” the @#$%ing thing by rotating the switch back and forth every few minutes, they had the brilliant idea of fright pestering you with a beeping alarm while you are doing something else. Now, if you could somehow disable such a power saving vendetta, I could be fine. But grrr with all these flexibility crippling “measures” trying to save on the parrot's chocolate. Flat Stare 

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Barkuti wrote:

HKJ wrote:

I would prefer the screen stayed on while charging. A keypress could be used to turn if off if you do not want the light.

I hear you. The #$% auto turn off with electronics stuff of nowadays can be very annoying. As an example, try to use a modern multimeter like the Bside ZT102 or Aneng 8002 (Zotek ZT102 both) to monitor some voltage, for example. Every #$% 14 – 15 minutes it wll make an alarm noise Facepalm and then shut off. Not only it forces you to “reset” the @#$%ing thing by rotating the switch back and forth every few minutes, they had the brilliant idea of fright pestering you with a beeping alarm while you are doing something else. Now, if you could somehow disable such a power saving vendetta, I could be fine. But grrr with all these flexibility crippling “measures” trying to save on the parrot’s chocolate. Flat Stare 


I usually find your always spectacular rands rather exaggerated Barkuti (but everyone has their personal style Party ), but on this particular point I could not more agree with both the content and wording of your post, I hate auto-turnoff on almost everything, and particularly displays that decide to switch off on their own Sick
gchart
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HKJ,

As always, thanks for your extensive and informative review!

I just got my Vapcell S4+ and my wife has banished it. Sad It’s power adapter is emitting a very audible and annoying 5700 Hz whine. Does yours do this? Is it because it’s an inferior power supply? Or is it possibly defective?

hammerJoe
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That is a pretty cool app… what is the name of it?

But its a cellphone so the accuracy is probably not the best.
Dont you have another power adapter that you could try?

gchart
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It’s called Spectroid. It’s the first time I’ve ever used it. I can’t speak for it’s accuracy, but it does represent what I’m hearing.

I thought about that. I need to dig around and see if I can find a similar one lying around from LED strip installs or something. Sure, I can replace it but it feels like that shouldn’t be necessary on a brand new device Sad

HKJ
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gchart wrote:
HKJ, I just got my Vapcell S4+ and my wife has banished it. Sad It’s power adapter is emitting a very audible and annoying 5700 Hz whine. Does yours do this? Is it because it’s an inferior power supply? Or is it possibly defective?

That is fairly common on modern switch mode supplies. The actual switching is way above the audible range, but there often is a regulation running at a lower frequency, usually the sound will vary with the load on the supply and often only be audible at certain loads.
The solution is either to use another supply or place the supply out of hearing range (Wrapping it in sound isolating stuff is a bad idea, it need cooling).

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

gchart
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Kinda figured, thanks for confirming! Thumbs Up

Geronimo
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So this sounds like a very good charger, for 18650 ,21700 and some envelopes. This or a skrc? I love my klarus single cell charger, miboxer c4 new two button has been replaced already so I don’t trust it. Charge , test, discharg.

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I’ve been meaning to test out this Vapcell S4 Plus charger for a very long time, but was only able to order one at a reasonably good price lately, and coupled with worldwide lockdown situation, my order arrived 4 months after I purchased it (ordered Feb 2020, arrived June 2020).

I haven’t gotten to test all the functions yet, and am perusing the manual, but some details (eg. discharge current) doesn’t seem that clear to me.

I have some questions: – regarding “capacity test” mode: what is the discharge current used? (I understand that slot #1 & #4 max discharge current is 1A and slots #2 & #3 max is 0.5A) does discharge current depend on the selected charging current (when “manual” mode)? or is it automatically set to 1A or 500mA or is it it based on some other parameter (eg. IR)?

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Can this charger charge 4 × 26650 and 4 × 21700? From the looks of it it does not look like it can do 4 × 26650

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gchart
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I just tried 4× 26650 the other day and it was a no-go. I don’t have 4× 21700 to test with, nor am I near my S4+ ATM to try it.

tatasal
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gchart wrote:
I just tried 4× 26650 the other day and it was a no-go. I don’t have 4× 21700 to test with, nor am I near my S4+ ATM to try it.

It can handle 4 × 21700s, no problem.

TimMc
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Is there a July 2020 upgraded version of the Vapcell S4+ charger?

EDIT: Linjuan Lau posted an update in Nealsgadgets FB group. I received some screenshots in Chinese and English via AE. Confirmed that a new version is available on AE and ordered. I’ve tried rewriting the English translation below. Smile

#1
OLD: The display turns off automatically after 8 seconds.
NEW: The display is always on. Press DISPLAY for 5 seconds to turn the display off.

#2
OLD: Press CURRENT for 5 seconds while charging in manual mode. Current will refresh and display. But the displayed current doesn’t change automatically in manual mode.
NEW: This feature has been removed in manual charging mode.???

#3
OLD: When a battery is fully charged, the Current “0mA” and Battery Capacity is displayed in turn.
NEW: Current “0mA” is no longer shown. Instead, the Battery Capacity “mAh” is clearly shown when fully charged.

#4
OLD: While using a CC/CV charging mode for Lithium batteries, the cut off current is 100mA for all supported cell sizes. This is a bit too high for small cells like 10440, 16340, 14500 etc.
NEW: The cut off current is now 50mA when using a charging current of 250mA or 500mA.

#5
OLD: When using Cap Test mode, NiMH batteries are only charged to 50% after discharge.
NEW: NiMH batteries are now fully charged to 100% after discharge when using Cap Test mode.

#6
Needs clarification?
OLD: A charging current from 250mA to 3A may be selected.
NEW: To improve safety and battery cycle life, the charger selects an appropriate current to use and let’s you choose two slightly higher values. For example, insert a cell, it defaults to 500mA. You can then select 500mA, 1000mA or 1500mA.

tatasal
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Actually there are NINE item changes but the pdf I received lack complete translation to English in items 7, 8 and 9.

Anyway, I am confident an official announcement of the changes will be forthcoming.

atobe
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Anyway we can update the old ones?

"☚ (<‿<)☚"

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I have some long 21700 batteries (protected, with USB port) and would like to know if anybody else has problems fitting i. 

HKJ nicely states the max length it accepts, is 76.9mm. And the battery I'm measuring is around that exact length. Just curious if it would a hard fit, or still easy and without problems. 

 

BTW, is this the new one?: https://www.aliexpress.com/item/4000614094561.html

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ChibiM wrote:

BTW, is this the new one?: https://www.aliexpress.com/item/4000614094561.html

Yes… I hope Silly

I asked Vapcell Store on AE the other day if the new upgraded version was available. They confirmed that it’s in their store and that all S4+ listings in their store are for the same charger. They also provided some screenshots of the upgrades.

gchart
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Ugh, the pain of being an early buyer. Don’t get me wrong, I love my S4+. But some of these things that have been changed (especially #1 and #5) bug me a lot.

atobe
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gchart wrote:
Ugh, the pain of being an early buyer. Don’t get me wrong, I love my S4+. But some of these things that have been changed (especially #1 and #5) bug me a lot.

Same I would like 1,3.

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contactcr
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So I bought the new one with the “upgrades” but the DC power brick it came with died in a day (good thing the PS is separate I guess?)..

Anyone have suggestions on a higher quality 12V 5A brick or are all these $10-15 ones basically the same with different cord length? Is it a crapshoot?

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Vapcell S4 plus upgraded version arrived today!

I’m keen to try this out on my 18650, 18350 and 10440 cells. Smile

The 12V 5A power brick makes a high pitched noise when using Charge mode. It’s less noticeable in Cap test mode.

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In regards to the new charger build and firmware update, @TimMc, can you actually charge NiMH cells at currents over 1A?

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

contactcr
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BlueSwordM wrote:
In regards to the new charger build and firmware update, @TimMc, can you actually charge NiMH cells at currents over 1A?

No. Not sure what gave you that impression but it seems it is still 250,500,1000 only for NiMH

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I tried Cap test in manual mode on the Vapcell S4 plus upgraded version (July 2020):
Slot 1: 10440 Vapcell 320mAh finished with 4.20V 330mAh
Slot 2: AAA LADA 900mAh finished with 1.53V 940mAh
Slot 3: EagleTac 18650 3400mAh finished with 4.20V 3196mA (9:45h)
Slot 4: EagleTac 18650 3400mAh finished with 3.12V 3191mAh (6:42h)

The 18650 in slot 4 finished the discharge step but it didn’t complete the final charge step. Maybe it was interrupted when I pulled the 10440 cell out of slot 1 when it had finished (alarm).

Cap test in auto mode #1:
Slot 1: 18650 GA 3500mAh finished with 4.20V 3468mAh (12:22h)
Slot 2: IMR18350 1200mAh finished with 3.33v 961mAh (2:33h)
Slot 3: IMR18350 1200mAh finished with 4.20V 975mAh (5:14h)
Slot 4: 18650 GA 3500mAh finished with 4.20V 3492mAh (12:5h)

The 18350 in slot 3 finished the discharge step but it didn’t complete the final charge step.

The 18650’s in slot 1 and 4 charged at around 1500mA initially, discharged at 500mA and then charged again at 500mA.

Cap test in auto mode #2 at night:
Slot 1: IMR18350 1200mAh finished with 4.20V 975mAh (3:35h)
Slot 2: 18650 30Q 3000mAh finished with 2.95V 2997mAh (6:25h)
Slot 3: 18650 30Q 3000mAh finished with 2.96V 2934mAh (6:34h)
Slot 4: IMR18350 1200mAh finished with 3.25V 1053mAh (2:25h)

The cells were all around 3.75V to start with. When they reached 4.20V, the charger didn’t seem to want to enter the discharge step. I pulled the power plug and plugged it back in 10 seconds later. Selected Cap test mode again. They started charging to 4.20V and each eventually reached 100%. Slot 1 and 4 started discharge first. A few hours later slot 2 and 4 had started discharge.

Slot 2, 3 and 4 stopped after the discharge step.

The room temperature changed from around 18 C to 10 C at night.

Cap test in auto mode #3 during the day:
Slot 1: 18650 GA 3500mAh finished with 4.20V 3476mAh (12:26h)
Slot 2: 18650 30Q 3000mAh finished with 2.68V 3010mAh (6:48h) 2.95V at 12:26h
Slot 3: 18650 GA 3500mAh finished with 2.82V 3442mAh (7:17h) 3.02V at 12:26h
Slot 4: 18650 30Q 3000mAh finished with 4.20V 3045mAh (10:33h)

Slot 2 and 3 stopped after the discharge step. They counted up to 100% when I pressed DISPLAY to switch to CH2 and CH3 at the end of the discharge step (alarm sounded).

Room temperature started at 15 C but gradually rose to 18 C after 6 hours. Discharge seemed faster in slot 1 and 4. Cell temperatures reached around 54 C.

Sometimes the voltage displayed while charging in Charge mode is 4.20V when it’s actually 4.07V when measured on a UT210E. Even though it might show 4.20V, it also displays >90% and keeps charging. If I take the cell out and put it back in, it then shows 4.07V and gradually goes up as it charges.

Overall, I’m happy with the charger. Big Smile It’s fully charging my NiMH and Lithium cells. Discharge mode is awesome! I can finally put cells into storage without using a torch to drain a cell down to ~3.75V.

BlueSwordM
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@contactr, well, I had some high hopes.

For some reason, I thought that the S4+ actually had higher current NiMH charging than I thought.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

contactcr
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I put 4x button top 30Q’s (auto mode) for Cap Test and got similar unexpected results:

Slot 1,3,4 did a full discharge but only recharged to 3.0x volts. Slot 2 fully charged to 4.18V (after hours of resting). This was with 1000,500,500,1000 discharge rate.

Before this I had mostly been testing small batteries and NiMH. It’s a little suspicious that TimMc and I both have these same issues and purchased at the same time?

contactcr
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I’m guessing this only applies to the “upgraded” model since no one mentioned this before now. Here’s slot 1-3 which never complete Cap Test and slot 4 still discharging. Shows 100% on first three slots but all are below 3V

and here’s a video of what happens. It “beeps” indicating it’s done then just counts up to 100% and stops:

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contactcr wrote:
It’s a little suspicious that TimMc and I both have these same issues and purchased at the same time?

They confirmed today that they were able to reproduce the issue. It looks like they’ll fix the firmware going forward…

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