Vapcell S4 Plus v3 vs XTAR VC4SL vs LiitoKala Lii-500 capacity testing. Interesting observations and questions.

Batteries and Chargers Chargers
1

Vapcell S4 Plus v3 vs XTAR VC4SL vs LiitoKala Lii-500 capacity testing 18650 Li-Ion and AA NiMH cells.

I have been capacity testing Li-Ion and NiHM cells in these three chargers and comparing the results for the last few days. Sorry my formatting sucks, I haven’t posted here in a very long time.

Charge - discharge (measure) - charge

Li-Ion cells charged using 1A discharged using 300-500mA.

18650----------Vap - XTAR - Litto

Samsung------2627 - 2792 - 2763 mAh
LG HG2---------2427 - 2642 - 2574 mAh

NiMH cells Eneloops (Kind of :wink: all made in Japan) charged using 1A discharged using 300-500mA.

AA ----------------------Vap - XTAR - Litto

Ladda 1900----------1817 - 1943 - 2172 mAh
Energizer 2300-----2158 - 2238 - 2437 mAh
Eneloop 1900-------1802 - 1919 - 2093 mAh

The Vapcell is always the lowest regardless of the chemistry by approximatley 100mah give or take when compared to the XTAR. The NiMH capacity testing with the Vapcell is always the lowest, the XTAR is always in the middle, and the Litto always gives the highest capacity. Now I can’t be sure which one is the most accurate but the Vapcell is consistently low. The Ladda 1900 batteries have been cycled a few times but are basically new and the Vapcell gives me 1802mAh. That can’t be right.

I bought the Vapcell S4 Plus because it’s always recommended here but in the capacity tests it’s falling short. Can anyone explain this? Did I get a defective unit from Wurkkos?

2

Is it falling short, or just more accurate? Differences in discharge and charge termination during the testing can effect the final result.

1 Thank
3

Thanks for replying. That’s true, but multiple new Ladda AA 1900’s with a capacity of around 1800mAh? That looks wrong to me.

4

That’s a tolerance of ~ 5%. Sounds pretty much like what I’d expect. If products like these can maintain ±5% throughout multiple batches I’m already impressed. Would expect less.

5

I think nobody here have a real reference so we can´t say if the Vapcell is wrong or the other chargers

Here is a NiMH-comparision from me

comparision

1694019741419
16940197414191200×467 265 KB

1694019768399
16940197683991200×411 260 KB

Lowest results are from the Keeppower L4, then the Powerex MH-C9000 Pro and then the Vapcell

2 Thanks
6

Based on your data this looks normal for the Vapcell S4.

That’s an incredible amount of useful data. Thanks for sharing it! :slightly_smiling_face:

7

Much data, Thank you for this

What means the red fields with the very high values?

8

Funny, my S4+ and vc4sl are the opposite of that. The xtar is always lower.

Margin of error

9

The Vapcell seems all to show lower capacity than many other chargers, it seems to have less variance than Xtar :wink:

The red fields are for manually stopped chargings because of to high capacity and to hot cells.

You´re welcome :slight_smile:

I have no lab conditions and maybe the capacity of some cells decreases from the 1st to the last charger, but I can´t do much more :wink:

Maybe there are many cells which aren´t not available in some countries, but I hope you also find cells which are available in your countries.

2 Thanks