Vapcell 18650 4000mAh - quick amateur discharge test

Finally got new Vapcell 18650, with declared 4000mAh capacity. Don’t have any professional equipment, but Liitokala Lii-600 should be good enough to determine, whether they truly are 4000mAh. And well… They really made it past 4000mAh mark :open_mouth: And that is consistent with one review I found online. Great job Vapcell! I remember times, when 18650 had 2100mAh (AW times), now it’s twice that…


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Looks awesome. Future will tell for the test.

Not so long ago, the 21700 had 4000 mAh :+1:

I considered picking these up, maybe will later. I bought four of the Vapcell F58, they tested quite good as well. I’m not sure if my charger’s test function is super accurate, but compared to my others, the F58 are above average.

Model/Name Measured Capacity (mAh) Listed Capacity (mAh) Percentage of Listed Capacity Max Discharge Rate (A)
Vapcell F58 5295 5800 91.3% 12.5
Vapcell F58 5375 5800 92.7% 12.5
Vapcell F58 5411 5800 93.3% 12.5
Vapcell F58 5511 5800 95.0% 12.5
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May I ask what instrument you used for testing,

Have you checked the initial voltage, discharge cut-off voltage, and equipment accuracy of the battery

Using a Vapcell S4 charger. Not checked anything. Just run the self capacity test function.

The testing capacity of this machine is a bit low

If you also test other batteries and roughly convert the ratio, you should know about

For example, testing MOLICEL P42A, sanyo ga, and so on

Yeah I am aware it isn’t accurate. But, I am more interested in the relative results.

Model/Name Measured Capacity (mAh) Listed Capacity (mAh) Percentage of Listed Capacity Max Discharge Rate (A) Serial/LOT Number Notes
14500
Vapcell H10 860 1000 86.0% 10 Button Top
Vapcell H10 841 1000 84.1% 10
Vapcell H10 881 1000 88.1% 10
Vapcell H10 919 1000 91.9% 10
Vapcell H10 876 1000 87.6% 10
Vapcell H10 890 1000 89.0% 10
Vapcell H10 826 1000 82.6% 10
Vapcell ICR14500 867 1000 86.7% 3
Vapcell ICR14500 867 1000 86.7% 3
Wurkkos 753 900 83.7% Button Top
Wurkkos 763 900 84.8% Button Top
Wurkkos 722 900 80.2% Button Top
Wurkkos 823 900 91.4% Button Top
Wurkkos 825 900 91.7% Button Top
18350
Efest IMR Purple 664 700 94.9% 10.5
Epoch 1001 1100 91.0% 9
Epoch 990 1100 90.0% 9
18650
Samsung 35E 3260 3500 93.1% 8 ME2T Button Top
Samsung 35E 3283 3500 93.8% 8 ME2T Button Top
Samsung 35E 3147 3500 89.9% 8 ME2T Button Top
Samsung 35E 3320 3500 94.9% 8 ME2T Button Top
Samsung 35E 2873 3500 82.1% 8 ME2T Button Top
Samsung 35E 3293 3500 94.1% 8 ME2T Button Top
Samsung 35E 3099 3500 88.5% 8 LK3T
Samsung 35E 3241 3500 92.6% 8 LK3T
Samsung 35E 3192 3500 91.2% 8 LK3T
Samsung 30Q 2854 3000 95.1% 15 LK1T
Samsung 30Q 2959 3000 98.6% 15 LM1T
Samsung 30Q 2770 3000 92.3% 15 LM1T
Samsung 30Q 2813 3000 93.8% 15 LM1T
Samsung 30Q 2795 3000 93.2% 15 LM1T
Samsung 30Q 2808 3000 93.6% 15 ----
LiitoKala Lii-35A 3149 3500 90.0% 10
LiitoKala Lii-35A 3035 3500 86.7% 10
Epoch P24B 2537 2800 90.6% 40
Epoch P24B 2550 2800 91.1% 40
Epoch P24B 2560 2800 91.4% 40
Epoch P24B 2626 2800 93.8% 40
Epoch P24B 2649 2800 94.6% 40
Epoch P24B 2514 2800 89.8% 40
Epoch P24B 2564 2800 91.6% 40
Epoch P24B 2549 2800 91.0% 40
Epoch 30P 2814 3000 93.8% 15
Epoch 30P 2846 3000 94.9% 15
Epoch 30P 2815 3000 93.8% 15
Epoch 30P 2735 3000 91.2% 15
Epoch 30P 2721 3000 90.7% 15
Epoch 30P 2768 3000 92.3% 15
Epoch 30P 2929 3000 97.6% 15
Epoch 30P 2821 3000 94.0% 15
EVE 25P 2319 2500 92.8% 20
EVE 25P 2261 2500 90.4% 20
EVE 25P 2379 2500 95.2% 20
EVE 25P 2417 2500 96.7% 20
EVE 25P 2388 2500 95.5% 20
EVE 25P 2319 2500 92.8% 20
Molicel M35A 3087 3500 88.2% 10 2M106 02
Molicel M35A 3244 3500 92.7% 10 2M106 02
Molicel M35A 3252 3500 92.9% 10 2M106 02
Molicel P28A 2641 2800 94.3% 35 2M430 07
Molicel P28A 2588 2800 92.4% 35 2M430 07
Molicel P28A 2569 2800 91.8% 35 2M430 07
Molicel P28A 2617 2800 93.5% 35 2M430 04
Molicel P28A 2643 2800 94.4% 35 2M430 04
Molicel P26A 2428 2600 93.4% 35 2KB08 01
Molicel P26A 2425 2600 93.3% 35 2KB08 01
Molicel P26A 2485 2600 95.6% 35 2KB08 01
Sanyo NCR18650GA 3222 3500 92.1% 10 2708
Sanyo NCR18650GA 3227 3500 92.2% 10 2708
Sanyo NCR18650GA 3338 3500 95.4% 10 2708
Sanyo NCR18650GA 3183 3500 90.9% 10 2708
Sanyo NCR18650GA 3172 3500 90.6% 10 2502
21700
Samsung 50S 4655 5000 93.1% 25 ME4T
Samsung 50E 4816 5000 96.3% 10 LO1T
Samsung 50E 4527 5000 90.5% 10 LO1T
Samsung 40T 3884 4000 97.1% 35 LK2T
Samsung 40T 3834 4000 95.9% 35 LK2T
Vapcell F58 5295 5800 91.3% 12.5
Vapcell F58 5375 5800 92.7% 12.5
Vapcell F58 5411 5800 93.3% 12.5
Vapcell F58 5511 5800 95.0% 12.5
LiitoKala Lii-50E 4504 5000 90.1% 10
EVE INR21700/50E 4664 5000 93.3% 10 HLFQ12B191580
Epoch P42B 4155 4500 92.3% 45
Epoch P42B 4038 4500 89.7% 45
Epoch P42B 4285 4500 95.2% 45
Epoch P42B 4115 4500 91.4% 45
Molicel P42A 3940 4200 93.8% 35 2M324 03
Molicel P42A 3808 4200 90.7% 35 2M324 03
Molicel P42A 3803 4200 90.5% 35 2M324 03
Molicel P42A 3777 4200 89.9% 35 2M324 03
Molicel P42A 3899 4200 92.8% 35 2M320 10
Molicel P42A 3907 4200 93.0% 35 2M320 10
Molicel P42A 3680 4200 87.6% 35 2L227 07
Molicel P42A 3937 4200 93.7% 35 2M323 09
Molicel P42A 3972 4200 94.6% 35 2M323 09
Molicel P45B 4277 4500 95.0% 45 2N119 09
Molicel P45B 4316 4500 95.9% 45 2N119 09
Molicel P45B 4171 4500 92.7% 45 2N119 09
Molicel P45B 4363 4500 97.0% 45 2N119 09
26650
Vapcell INR 4034 4200 96.0% 32
Vapcell K62 5851 6200 94.4% 15
LiitoKala Lii-50A 5149 5000 103.0% 20
LiitoKala Lii-50A 5128 5000 102.6% 20
26350
Vapcell INR26350 1889 1800 104.9% 18
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Ahhhh yeah, AW 2200mAh 18650s were my first 18650 and marked the end of my use of CR123 flashlights. I think the first 18650 light I bought may have been a dereelight thrower with a cree xr-e.

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Thank you very much for sharing your data

This charger test is generally a bit low, and the accuracy of the charger is not enough

Got Vapcell 1250mAh 14500s, again measured using Lii-600 charger. Sorry for bad picture quality - there’s 1225mAh capacity. Forgot to make a picture of second battery - there was 1244mAh capacity measured. That’s with 500mA discharge current, first cycle. Again - good job Vapcell :+1:

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Call me strange, but I’m more impressed with the Vapcell F12 being measured at 1225mAh vs 1200mAh nominal, than the Vapcell N40 (?) being measured at 4090 and 4132mAh vs 4000mAh nominal… due to your testing them all at 500mA discharge rate and the F12 being 14500-sized vs the N40’s 18650…

Thanks for sharing your measurements. Kinda disappointed there isn’t one for the LG MJ1, tho.

Eh, I’m more impressed by 18650s having 4000mAh, not that they measure (with a likely not all that accurate discharger) above stated capacity.

The added capacity over 18650B and 18650GA is nice, but the price is about 4 to 5 times as high. I think I will stay with 18650GAs for now.

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There’s probably some unseen drawback. I’d expect something like high self-discharge or poor cycle life. The high capacity 18650GA suffers from the latter.

no high self-discharge and poor cycle life

Mooch has conducted tests and can search online

NCR18650GA is great, but there will be even better batteries in the future

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Hi,
Thanks for the data. I also got similar results for the 14500 vapcells. Also for NCR18650GA and the same for LG MJ1.
Molicell P42A ~3900 mAh
Molicell M35A~3300-3400 mAh
Samsung50S~ 4800-4900 mAh.
The small 10440 green Vapcell cells performed best.
The tests were made with Vapcell S4+ and Opus Btc-100. According to my observation, even with the small 14500s, there was only a few mAh difference between the 100 and 500 mA discharge currents, even with the 10440s. A lot of batteries in a row underperformed, I started to suspect the chargers, but the small 10440s finished at or above the data. The 2600mAh Wuben battery also had the same capacity as the NiMhs. I still don’t know what to believe because branded batteries also bleed like Olight and Fenix.

My list has been expanded with a Vapcell F60 and an N40.
The test device is a Vapcell S4+. 1000/500 mA charging and discharging current. The F60 is 5817mAh and the N40 is 3717mAh, for the first cycle.

Your N40 capacity is a lot lower than what I measured. My results were close to what @Kazik had, 4121mAh and 4131mAh (standard C/5 discharge to 2.5V).

Seems like too big a difference to be just batch-to-batch inconsistency. The S4+ discharges down to 2.5V so it’s not a too-high cutoff voltage (like some other chargers). Different grade cells?

No disrespect intended but gotta’ ask…you’ve checked your S4+ to a known capacity cell to gauge its accuracy?