i have all 25Rs. great middle of the road between current and capacity. in addition they are cheap to purchase and genuine versions are readily available through overseas distributors. i can run them at 20A all day long without them heating up in the slightest. i occasionally push them a bit higher in single battery devices depending on the tank im running (75W max) and again there are no heat issues. in a double mod i have no issues whatsoever. i will never go above 140w (20A). bottom line is that they are a set it and forget it battery.
What is your 18650 battery of choice and Why?
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Efest 3.7v, 35 amp, 2500 mah
Been rotating the same 4 batteries for a year now and all still going strong.
Vaping on tanks (subtanks and tfv4), around 21 watts on the single coil subtanks, and 42 watts on the tfv4 dual R2 coils.
10-13ml/day.
Been rotating the same 4 batteries for a year now and all still going strong.
Vaping on tanks (subtanks and tfv4), around 21 watts on the single coil subtanks, and 42 watts on the tfv4 dual R2 coils.
10-13ml/day.
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Although it doesn't sound like it's an issue at your wattage/resistance, you should know that the Efest 35A batteries are actually only 20A. They're likely re-wrapped LG HE2's.
3000mah LG HG2's are all I use now.
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I have had a couple of each of 25R, HE2, VTC3, 4 and 5 for a while. I bought a half dozen new batts a little while back and settled on 25R. I typically draw no more than 16A from them and a lot of the time less than that, but it can go up to about 25A occasionally for short periods. I wanted to have general use batteries that would handle all that and these seemed to be the best for that for me.
The first set of batteries I bought were Efest (not knowing any better)....after reading our resident experts opinions and seeing test results I only buy what have been tested as true 20 amp LG's, Sony's, Samsung's.
anything with fire in the name.... I like changing out batteries every 3 hours, poor life expectancy, really hi amp ratings and ungodly mah values... 
Im a living on the edge kind of guy
actually I do VTC4s and SubOhmCell...
Im a living on the edge kind of guy actually I do VTC4s and SubOhmCell...
25Rs and now some LG HG2s which I'm really liking so far. I have a whole brace of VTC4s which I rarely use now I've settled on an amp range that doesn't require them.
Those are ICR chemistry batteries. Not recommended for mods. Not high drain nor safe chemistry.
Could be counterfeits. Also, if you are pushing them hard with high amp loads, realize that they are not 30 amp CDR, but 20 amps.
Sony VTC5 20A 2600mAh 18650
Sony VTC5 20A 2600mAh Bench Test Results...a good 20A cell
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Personally, I presently use Sony VTC4 and Samsung 25R in my mech (0.6 ohm), and AW IMR (18350/18490/18650) in my Provari (1.5 ohm).
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Yes, but my guess is Mooch is using them in a higher wattage regulated mod, and not a mech. The processor's amp limit determines the amp requirement in this application, not the atomizer resistance
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LG HG 2s. Loooooong lasting 20a...........been usin them since they first came on the market. Converted from VTC4s and 25Rs. Got one bad one from Illum that had died after 2 weeks and they replaced it.
In that case it probably wouldn't be 40+ amps on a single battery.
I don't know what he's using them in, but he might be using a dual parallel battery mod, which would double the amps available.
I'm not an expert in this circumstance, but I know boost circuitry in high wattage mods can allow safe use of a single 18650 battery at 40 watts. Provape recently introduced the Radius 40 watt regulated mod, and they recommend the 20 amp Samsung 25R for it. Provape is extremely safety conscious with the products that they design, so they would not put out a product with safety concerns.
you can easily draw 40A from those. the downside is heat. all the battery testing done on this forum and by people in the vaping community is with constant discharge of the entire cell. not pulses. this is the best thing for testing because it is a worst case scenario. you cant test pulses because everyone vapes for different durations with different rest times in between. how can you say that a battery is safe to use with a given pulse when everyone is different?
that being said on my 25Rs they have been tested to be safe at 20A. at that current draw normally vaping they dont even rise above room temperature. pushing those batteries to 30A and taking a 3-4 draw every 15s they will begin to get warm but there is nothing really to worry about (in a regulated mod). however, if i were to run them at 30A for an extended period they would get very hot. however even at short pulses the overall cell life would begin to suffer long term damage. the current battery testing is done as a worst case scenario (as it should be). however, with a little common sense you can go above those current ratings.
that being said on my 25Rs they have been tested to be safe at 20A. at that current draw normally vaping they dont even rise above room temperature. pushing those batteries to 30A and taking a 3-4 draw every 15s they will begin to get warm but there is nothing really to worry about (in a regulated mod). however, if i were to run them at 30A for an extended period they would get very hot. however even at short pulses the overall cell life would begin to suffer long term damage. the current battery testing is done as a worst case scenario (as it should be). however, with a little common sense you can go above those current ratings.
on my VTC mini i can read the current draw. setting the mod to 70W it is drawing roughly 20A from the battery. there is no reason at all for anything close to the 25R to be necessary for a 40W mod.
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