Test/Review of Evva 18650 3500mAh (Black)

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HKJ
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Test/Review of Evva 18650 3500mAh (Black)
Evva 18650 3500mAh (Black)

DSC_1167

Official specifications:
  • Cell: Panasonic(Sanyo) NCR18650GA high drain cell
  • Nominal voltage: 3.7V
  • Nominal capacity: 3500mAh discharge at 0.2C mA
  • Stanard Charge voltage: 4.20V ( Full Charged Voltage )
  • Standard Charge current: 1000mA
  • Charge Time(Std.): 4 hours
  • Discharge cut-off voltage: 2.50V
  • PCB Protection trip current: about 10A
  • Operating environment Charging: 0°C ~ 45°C ; 65±20%RH
  • Operating environment Discharging: -20°C~60°C ; 65±20%RH
  • Storage environment: -20°C~60°C; Less than 1 month, -20°C~60°C; Less than 3 months
  • Cell Weight: 50g max.
  • Cell Dimension: (L) 68.90mm*(D) 18.60mm

Evva%2018650%203500mAh%20(Black)-info

This is a high capacity cell that can handle fairly high discharge current.

DSC_1165 DSC_1166

DSC_1168 DSC_1169

DSC_1170
DSC_1171


Evva%2018650%203500mAh%20(Black)-Capacity

Very nice discharge curves with good tracking between the cell.
My result is below rated capacity, some of the reason is probably because I terminate charge a bit early (100mA instead of 50mA) and do not discharge to 2.5 volt, only to 2.8 volt.

Evva%2018650%203500mAh%20(Black)-CapacityTimeHours

Evva%2018650%203500mAh%20(Black)-CapacityTime

Evva%2018650%203500mAh%20(Black)-Energy

Evva%2018650%203500mAh%20(Black)-PowerLoadTime

Evva%2018650%203500mAh%20(Black)-TripCurrent

Evva%2018650%203500mAh%20(Black)-Charge



Conclusion


This cell is designed for higher loads, but it has capacity enough to be a resonable cell at lower loads also.

This is a very good cell.



Notes and links

The batteries was supplied by Evva for review

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Compare to 18650 and other batteries

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

SubLGT
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What can be a little confusing is that EVVA manufactures 2 different versions of the 3500mAH 18650 10A batteries, one based on the Panasonic 18650GA, the other based on the LG 18650MJ1.

It takes a close look at the label to see the differences.

http://www.mtnelectronics.com/index.php?route=product/product&path=59_88...

http://www.mtnelectronics.com/index.php?route=product/product&path=59_88...

J-Dub74
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Greetings Henrik,

Do you think this would be a good choice if wanting to gift a light requiring a higher drain cell? There are some higher drain lights like the BLF A6 and the upcoming BLF X6 SE v2 and X5 that I would like to give to family members packaged with an Xtar charger. I am not comfortable gifting anything but a very protected setup to those who will not get into it as deep as we flashaholics do. That said I would like to allow them to use their lights at their full potential or at least very close. I’ll happily sacrifice a few lumens for safety. I buy my cells from Mountain Electronics so these are an option for me. I actually have two of these already and I’ve been very happy with them but I don’t have a way to test output from my lights besides my eyes. Let me know your thoughts. Thanks.

HKJ
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J-Dub74 wrote:
Greetings Henrik, Do you think this would be a good choice if wanting to gift a light requiring a higher drain cell? There are some higher drain lights like the BLF A6 and the upcoming BLF X6 SE v2 and X5 that I would like to give to family members packaged with an Xtar charger. I am not comfortable gifting anything but a very protected setup to those who will not get into it as deep as we flashaholics do. That said I would like to allow them to use their lights at their full potential or at least very close. I'll happily sacrifice a few lumens for safety. I buy my cells from Mountain Electronics so these are an option for me. I actually have two of these already and I've been very happy with them but I don't have a way to test output from my lights besides my eyes. Let me know your thoughts. Thanks.

Depends on what type of high drain cell you are looking for: 5A is probably fine with this cell and also a bit more for a short time.

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

light-wolff
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May I add my own measurements on 2 samples of EVVA 18650 3500mAh, purchased from Fasttech in Oct 2015:

Both samples compared:

.
Sample #1 vs. plain NCR18650GA:

.
Sample #1 vs. Keeppower 3500mAh 2015 + Eagtac 3500mAh (both protected):

.
Link to product on EVVA homepage
.
Overcurrent cutoff: 12.4A/12.1A (#1/2 measured at 4.15V resting voltage)
Overdischarge cutoff: 2.48V (#1+2 measured at 1A)
.
Capacity, energy and average voltage on CC discharge to 2.50V:


A Ah Wh V
1.0 3.345 12.044 3.600
3.0 3.297 11.466 3.478
5.0 3.305 11.166 3.378
7.0 3.293 10.818 3.286
9.0 3.257 10.444 3.207
10.0 2.477 8.069 3.257

Discharge to 2.80V:


A Ah Wh V
1.0 3.256 11.806 3.626
3.0 3.178 11.148 3.508
5.0 3.143 10.731 3.414
7.0 3.070 10.223 3.330
9.0 2.973 9.686 3.258
10.0 2.443 7.974 3.264

Discharge to 3.00V:


A Ah Wh V
1.0 3.138 11.462 3.653
3.0 3.031 10.721 3.537
5.0 2.918 10.076 3.453
7.0 2.740 9.261 3.380
9.0 2.491 8.279 3.324
10.0 2.151 7.122 3.311
Patrickbateman
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SubLGT wrote:
What can be a little confusing is that EVVA manufactures 2 different versions of the 3500mAH 18650 10A batteries, one based on the Panasonic 18650GA, the other based on the LG 18650MJ1.

It takes a close look at the label to see the differences.

http://www.mtnelectronics.com/index.php?route=product/product&path=59_88...

http://www.mtnelectronics.com/index.php?route=product/product&path=59_88...

And…which one would be the best ?

And what about the Kaidomain one ?

http://www.kaidomain.com/review/NCR18650GA-reviewpage.htm

http://www.kaidomain.com/product/details.S024245 :~

light-wolff
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Patrickbateman wrote:
And…which one would be the best ?

And what about the Kaidomain one ?


The KD one is not EVVA, so nobody can tell until it’s tested.

The differences between LG MJ1 and NCR GA are very small up to 5A, but NCR GA is ahead.

Patrickbateman
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light-wolff wrote:
Patrickbateman wrote:
And…which one would be the best ?

And what about the Kaidomain one ?


The KD one is not EVVA, so nobody can tell until it’s tested.

The differences between LG MJ1 and NCR GA are very small up to 5A, but NCR GA is ahead.

Well, about the Kaidomain one, i mainly wonder about the protection PCB…no idea if it’s good….so i will go with the EVVA.

Thank you. H)

stephenk
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Fantastic comparison.
Shame I bought the Olight cell before this review!

Do the EVVA, Eagletac, or Keeppower have their protection at the +ve terminal (which is probably safer) like the Olight?

light-wolff
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stephenk wrote:
Do the EVVA, Eagletac, or Keeppower have their protection at the +ve terminal (which is probably safer) like the Olight?

No. All of these have their protection at the negative terminal.
stephenk
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light-wolff wrote:
stephenk wrote:
Do the EVVA, Eagletac, or Keeppower have their protection at the +ve terminal (which is probably safer) like the Olight?
No. All of these have their protection at the negative terminal.

Thanks for the information!

BanglaBob
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Thanks for the review, HKJ LOL

I own 4 different types of 26650 cells, including two hi-drain (35A/unprotected) ones.
But in testing my high-power lights, my protected Evva cells out-perform them all.
Good to know their 18650’s are also good. I just might order some…

Lights out! That's when things get interesting...

hyperduc
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I’ve been using the EVVA Panasonic(Sanyo) NCR18650GA 3500mAh cells for a while now. Just ordered a bunch more from MTN Electronics.

Size is the same as NCR18650B, and they fit all of the lights I have tried so far. Excellent sells and a great value for under $10/ea. Every protected reputable 18650 on BatteryJunction (Olight, Nitecore, etc) of this capacity are more expensive. Not sure why these aren’t more popular!

Thanks as always for the great test data.