Samsung 25R questions

[sixOHfour]

Hey Everyone,

I went to my local vape shop to pick up some new batteries that are to be married for my box mods. I originally went in hoping for VTC 4's or 5's, but I was told by the employee's that the factory burned down, and that they were no longer available.

Anyways, one of the employee's told me "you should just get the smurfs! they are way better than VTC's anyways, Samsung 25R 2500mah, 35A" upon hearing this I said OK, and bought 4 of them. When I got home tonight I started researching them and now I see that they are only 20a batteries. Kind of peeved about it, I dont like being mislead or lied to... especially when I spend alot of money there. They had the purple Efest 2100 and 2500's in stock.. I will admit, I have 6 of them and use them for some pretty low ohm builds and have for a long time. Up until earlier today, I had no idea they arent really 30a batts.

So, my question is.. just how good are these 25R's? My builds are usually around .19-.25 Easily pushing past the limits of these batteries.. but then again, I have been doing it with the Efests for over a year too. I know its not smart, but I honestly didnt know until now lol.

Should I take them back and search for something else? I live up in Canada, so its not easy to bring in batteries cheaply from the US. I also need them somewhat quickly.

 

[jwag1973]

I don't know if RTD VAPOR ships to Canada, but they have genuine Sorry VTC4 's. The Samsung 25R is indeed a 20A battery. Your builds are quite low for a 20A battery. The Efest 18650 2100mah 30A is supposed to be 30A with a 60A pulse for up to seventy-five seconds. I have some, but until I see reliable tests, I'll assume their probably 20A. I emailed Efest and the response was that the battery has a 30A discharge, with a 60A pulse for up to seventy-five seconds, like the wrapper state's. I will need conclusive proof before I put much stock in their claims.

 

[Ryedan]

So, my question is.. just how good are these 25R's? My builds are usually around .19-.25 Easily pushing past the limits of these batteries.. but then again, I have been doing it with the Efests for over a year too. I know its not smart, but I honestly didnt know until now lol.

Should I take them back and search for something else? I live up in Canada, so its not easy to bring in batteries cheaply from the US. I also need them somewhat quickly.

Hi sixOHfour from another Canuck. I have Samsung 25R and Sony VTC's. I try not to go lower than 0.3 ohms with the 25R.

My preferred battery supplier is Illumination Supply. They are a known good supplier and do not sell counterfeits. The link will take you to the VTC4 page which are in stock for $8.50 each. Shipping to the Toronto area was I think around $8 and didn't take more than a week if I remember correctly. If you want to have a look around for a better deal, these are also known good suppliers;

RTD Vapor
Lighthound
Orbtronic
Battery Junction

I used Battery Junction a little while back and they also have good ship rates to Canada and are fairly quick. I have not used the other three.

Hope this helps

 

[Kemosabe]

OP, your 2100 mah purple efests are indeed vtc4 cells. Albeit binned lower than a Sony green wrapper vtc4, but it's a vtc4 nonetheless. Rip that wrapper off if you need to, but trust me and many many reports online. They are vtc4s.

And your 2500 mah purple efest is an LG HE2 cell. Which is 20A continuous.

I have sony vtc4s, LG HE2s, and samsung 25Rs. I like the Sammys the best. But the difference is negligible. The sammys are fantastic cells and you should absolutely keep them. Searching for better cells is futile because lots of vapers consider 25rs the best (in lieu of a vtc5). And if you really want to split hairs, there are lots of reports stating that the vtc line is not a 30A continuous battery. Take that for what you will, you can go batty (no pun intended lol) reading discharge charts, reviews, and so forth. One thing you might like to hear, is that some pulse tests push the 25r to 100A without venting. I'm not recommending this, just trying to resolve your buyers remorse and put things in perspective. Vape on.

 

[Kemosabe]

Also, For the majority of applications, the lg he2, Sammy 25r, and vtc4, they are damn near identical. Only the vtc5 edges out the competition. And even that is by a small margin. Results start to change if your super duper low on resistance, but you said you're at around 0.2 and up so you'll likely not notice much of a difference between cells. At this point, the age of the battery and number of discharge cycles will play the biggest factor.

 

[sixOHfour]

Thanks for all of your input guys, I definitely dont feel the need to return them now. I will admit, I have been obsessing about it, trying to get all of the information I can, but from everything thats been said and read it seems that the consensus is that the 25R's are a good battery.

I'm yet to actually put them to the test, as I am saving them for some new toys that are in the mail. Hopefully in the next few days!

 

[Froth]

I have four mechanical devices currently build to .12 ohms, all four are using Samsung 25r's and have been for over a month, no issues whatsoever. Nothing exciting to report in any way, actually. They just work, when they reach 3.4-3.5V they produce really crappy vapor so I charge them at that point. Probably over 50 cycles on each battery in each mod at this resistance level, the only thing I really have noticed is that my VTC5's sit on the shelf without use because the 25R's are so good to me. They can discharge MUCH more than 20A in short bursts, even the factory testing specifications show them stress testing the 25R with Pulse drains exceeding 50A.

 

[sparkky1]

Put them up against your purples or sony 4's and you won't buy those again

 

[chomper33]

Since these are to be married and used in box mods, whether they are in parallel or series will matter a lot.

.19 - .25 is easily done by the Samsung 25Rs in parallel.

That ohm range sounds a bit intense in series though (282W - 371W). I would be a bit nervous pushing the Samsungs like that.

 

[BigBoyBlue]

Samsung 25R's can sub ohm to 0.12. They have been extensively tested and pulse to 35 amps for 6 seconds at a time. Unless you are hauling on your mod for longer than 6 seconds these batteries are safe to .12 ohms.