Test/Review of Samsung INR18650-30Q 3000mAh (Pink)

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HKJ
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Test/Review of Samsung INR18650-30Q 3000mAh (Pink)

Samsung INR18650-30Q 3000mAh (Pink)

DSC_2344

Official specifications:


  • Initial IR (1kHz):
  • Initial IR (DC):
  • Charge method: CC-CV (4.2V+/-0.05V, 100mA cut-off)
  • Standard charge current: 1.5A
  • Fast charge current: 4A
  • End voltage: 2.5V
  • Max. continuous current: 15A
  • Rated discharge capacity (0.2C): 3000mAh
  • Rated discharge capacity (10A): 2700mAh
  • Cycle life: 300 cycles to 70% (4A charge and 15A discharge)
  • Cycle life: 250 cycles to 70% (4A charge and 22A discharge, pause at 70°C, resume at 50°C)

Samsung%20INR18650-30Q%203000mAh%20(Pink)-info

Modern high current cells with lots of capacity.

DSC_2342DSC_2343

DSC_2345DSC_2346

DSC_2347
DSC_2348

Samsung%20INR18650-30Q%203000mAh%20(Pink)-Capacity

Very good discharge curves, capacity is nearly constant and they track perfectly. Even the 20A curve maintains a decent voltage, but as can be seen below the cell gets warm.
The tail on some curves is because I continue to record after stopping the discharge (If the cell is hot), i.e. it shows how much the voltage recovers.

Samsung%20INR18650-30Q%203000mAh%20(Pink)-Temp-10.0

The cell will heat up at a 10A load, but it is rated for it.

Samsung%20INR18650-30Q%203000mAh%20(Pink)-Temp-15.0

Samsung%20INR18650-30Q%203000mAh%20(Pink)-Temp-20.0

The cell can also handle 20A for some time, but you are supposed to stop when it gets hot (As I do here).
Remember the chart shows above ambient temperature, the actual cell temperature goes above 75°C.

Samsung%20INR18650-30Q%203000mAh%20(Pink)-CapacityTimeHours

Samsung%20INR18650-30Q%203000mAh%20(Pink)-CapacityTime

Samsung%20INR18650-30Q%203000mAh%20(Pink)-Energy

Samsung%20INR18650-30Q%203000mAh%20(Pink)-PowerLoadTime

Samsung%20INR18650-30Q%203000mAh%20(Pink)-TripCurrent

Samsung%20INR18650-30Q%203000mAh%20(Pink)-Charge



Conclusion

This cell is very good, it can handle about 15A continuous discharge and has no problems with 20A pulses.



Notes and links

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/

sesgum
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Thank you!

KawiBoy1428
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Yes, excellent review and testing ,thank you very much!

KB1428 “Live Life WOT”

JPLight
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What was your discharge cut off voltage ? 2,8V as shown in the Diagramms ?

HKJ
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JPLight wrote:
What was your discharge cut off voltage ? 2,8V as shown in the Diagramms ?

Yes, I have not changed that.

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

Mr.Scott
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Thanks for the review!

(I got lucky. I ordered some last night, prior to the review coming out.) Smile

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Nice to see, thank you!

I find this to be one of the best performing cells out there, and the capacity is just a bonus! Always good to get confirmation HKJ style, great to see the charts and get a feel for just what it’s doing.

Awesome work, as always, and again, Thank You!

Dale

vex_zg
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Excellent. Now you are just missing to compare it with Sony VTC5A.
And also LG MJ1 would be nice.

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Excellent review HKJ.
Glad I have few of these before the restrictions on shipping of Li-Ion cells from China by some of the online retailers

tarver
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i used 2 of these new and in series in my ec4s. to my surprise, my opus showed that they took a very different amount of charge to refill each one. i see that as very bad. what should i do ? try it again, try 2 more new batteries, or just chop them in half with an axe ?

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Thank you for the review HKJ.
I hope my flat-tops finally are on their way to me (yes, I was NOT on the GB and received button-tops).

I always think long and hard before I say something really stupid.

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I find that the only cell that comes close to the 30Q is the Efest 35A or 3000mAh Dark Purple cell. Everything else falls short, including the Sony VTC5. I haven’t seen a VTC5A, so that one I don’t know about. The LG HE-2 falls short, as does the HE-4. What used to be the king of cells, the Samsung 20R, can’t touch it. (ok, well, the 20R does pretty high amperage but falls so fast due to it’s 2000mAh capacity)

That said, the light that I have that will draw the most current from a single cell prevails on the LG HE-2. 21.1A is the highest I’ve seen from a single cell in a flashlight, this is in a Titanium X6 Quad 219C. The 30Q and 35A are right up there, but not quite at that level. This is a rare case though, and in virtually every other light I’ve tried em in the 30Q is top dog.

Dale

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tarver wrote:
i used 2 of these new and in series in my ec4s. to my surprise, my opus showed that they took a very different amount of charge to refill each one. i see that as very bad. what should i do ? try it again, try 2 more new batteries, or just chop them in half with an axe ?

If you’re looking at what the numbers are during charging then that’s very misleading. You have to do a discharge test in order to see what the capacities are. Even that is not extremely precise with low price chargers. My hobby charger seems to be 10% lower than my Opus, but which one is closer to being correct is impossible to say.
akhyar
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SIGShooter wrote:
tarver wrote:
i used 2 of these new and in series in my ec4s. to my surprise, my opus showed that they took a very different amount of charge to refill each one. i see that as very bad. what should i do ? try it again, try 2 more new batteries, or just chop them in half with an axe ?
If you’re looking at what the numbers are during charging then that’s very misleading. You have to do a discharge test in order to see what the capacities are. Even that is not extremely precise with low price chargers. My hobby charger seems to be 10% lower than my Opus, but which one is closer to being correct is impossible to say.

I think what @tarver asking is why his 2 batteries take on different amount of charge after being used in his EC4S.
Running a discharge test will shows the capacities of both his batteries, which is another issue whatsoever.
But if he has not done so, it is best for him to do it first so that he can concludes that both batteried that gone into his EC4S has roughly the same capacity.

To me, if @tarver try 2 more new batteries in his EC4S and still get different amount of charge to refill, it’s more likely due to his light.

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Nice one HKJ. This cell is no joke!

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Thanks, HKJ! Smile

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JPLight
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HKJ wrote:
JPLight wrote:
What was your discharge cut off voltage ? 2,8V as shown in the Diagramms ?

Yes, I have not changed that.

Thank you for your quick answer !
As I am always testing capacity of my rechargeable batteries, I was not really sure if my measurements were really accurate using my, in comparison to yours, budget equipment.
I have got 12pcs of 30Q and I am quite happy to see that my measurements pretty much match with yours (I´m just doing simple capacity testing up to 3A).

martosound
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Hi, everybody!

I need a help about INR18650-30Q battery manifacturing date code.

For the other Samsung elements refers written below:

■ Cell package : The bare cell is packed by which packaging material, PET tube.
■ Model and tube marking : there are three lines on the cell tube as follows.
Line 1 : INR18650-25R —- cell model name
Line 2 : SAMSUNG SDI —- cell manufacturer
Line 3 : 2D51 —- date code (Capacity ; “2” is over 2.0Ah, Year, Month, Week)

But 18650-30Q element have different Line 3 code. Only three letters. The principle of the code is different. I don’t know whether the item is new or 1-2 years old. Smile

DB Custom
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Since the Samsung 30Q is a relatively new offering, it simply cannot be 2 years old.

(I do have an atrocious time line memory, so 2 years could be “new” to me, sorry if that is the case. Bottom line is, it really can’t be an old enough cell to really matter. Authenticity would be far more important and there are other identifiers for that.)

Dale

tkd15
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See the 1st line on the can under the wrapper, 3rd digit = year, 4th digit = month.
I found it here.

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Thank’s tkd15 ! Wink

I understood. This is Lot marking.

■ Lot marking :

There are three lines on the cell metal can as follows.

Line 1 : J5D5 —-

1st digit: Line number ( “1” for cylindrical line No.1, “J” for cylindrical line No. 8)
2nd digit: Final number of Model Name (“5” is INR18650-25x)
3rd digit: Year ( “D” is 2013)
4th digit: Month ( “5” is May ; A is Oct., B is Nov., C is Dec)

Line 2 : 45221 —-

1st digit: Negative coater number ( “7” is No. 7 coater)
2nd ~ 4th digit: Batch number
5th digit: Serial No. of assembling

Line 3 : 62F1 —-

1st digit: Date (“6” is 6th day ; 10 is A, 11 is B…)
2nd digit: Serial No. of winding in a batch
3rd digit: Reel No ( “F” is F reel ; A is A reel, B is B reel, … F is F reel)
4th digit: Winding Machine No. ( “1” is No.1 winder)

teacher
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Is the flattop 30Q a raised flattop that will work in series?

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teacher wrote:
Is the flattop 30Q a raised flattop that will work in series?

No, the top of the pos is actually lower than the plastic wrap and washer. My HG2 are actually higher than the plastic.

teacher
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vwpieces wrote:
teacher wrote:
Is the flattop 30Q a raised flattop that will work in series?
No, the top of the pos is actually lower than the plastic wrap and washer. My HG2 are actually higher than the plastic.
Thank you VW, I could not tell for sure from the pictures I could find and was wanting to order some.
Appreciate the info…… Smile

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

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teacher wrote:
vwpieces wrote:
teacher wrote:
Is the flattop 30Q a raised flattop that will work in series?
No, the top of the pos is actually lower than the plastic wrap and washer. My HG2 are actually higher than the plastic.
Thank you VW, I could not tell for sure from the pictures I could find and was wanting to order some.
Appreciate the info…… Smile

Button top 30Q are available from Gearbest if you need to use these batteries. I used this code last time (not sure where it came from) and may still be valid. a59300.

My current and or voltage measurements are only relevent to anything that I measure.

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Thumbs Up …. Thanks for the tip VW. Wink

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This definitely is a very good battery. I studied HKJ comparator for awhile. Only the relatively new VTC6 beats it in all of the voltages. Not by much.

The 30Q is ~$4 cheaper,,in that sense it would probably be the best choice. From a visual perspective and a performance perspective, I doubt if there would be any noticeable difference.

I have One of these for the last 1.5 years and it is still working well. i have a pair of VTC6,so far they are working well!

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MRsDNF wrote:
teacher wrote:
vwpieces wrote:
teacher wrote:
Is the flattop 30Q a *raised* flattop that will work in series?
No, the top of the pos is actually lower than the plastic wrap and washer. My HG2 are actually higher than the plastic.
Thank you VW, I could not tell for sure from the pictures I could find and was wanting to order some. Appreciate the info...... :)
Button top 30Q are available from Gearbest if you need to use these batteries. I used this code last time (not sure where it came from) and may still be valid. a59300.

It was good a week ago when I bought 4....but only works on so many pieces as far as I could tell....

a59300

teacher
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Thanks for that update VW, I was just about to pull the trigger on some at BangBang… with a code and points. Facepalm
Not even gonna waste my time now,,,,,,,,, Wink
I’ll just get em here in the USA & pay a bit more & have them in a couple of days.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

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teacher wrote:
vwpieces wrote:
teacher wrote:
Is the flattop 30Q a raised flattop that will work in series?
No, the top of the pos is actually lower than the plastic wrap and washer. My HG2 are actually higher than the plastic.
Thank you VW, I could not tell for sure from the pictures I could find and was wanting to order some. Appreciate the info…… Smile

I have no problem using any of my 30q in series. I have 4 put up I use in l6 and s70 to save weight of 26650s if imma be holding it for awhile. Got two from imr batteries and the other married pair from GB

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teacher
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Speed4goal wrote:

I have no problem using any of my 30q in series. I have 4 put up I use in l6 and s70 to save weight of 26650s if imma be holding it for awhile. Got two from imr batteries and the other married pair from GB
Good idea about the saving weight thing ‘Speed4goal’. Thumbs Up

Are your 30Q’s flattops or button tops like the ones below??

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

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