I just recently purchased a Samsung 18650 2500mAh battery, and I just built a dual coil, with a parallel wrapped build. My ohm reader is registering about .17 ohms. I have fired the mod, and the mod hasn't got hot and neither has the battery. I was just wondering if this was safe, and if not do I need to buy a bigger mod, and what would support this build?
How low of resistance can I run my Samsung 18650 2500mAh battery to?
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It's got a 20A CDR, and 4.2/20 = 0.21; you'd be breaching the amp limit at a build of 0.21 ohms, and anything lower exceeds the CDR. So I think most people would advise against a 0.17 ohm build using the 25Rs.
Actually, I've just made an assumption - are they 25R's?
Actually, I've just made an assumption - are they 25R's?
Hello and welcome to the forum. Glad to have you here!
I highly recommend you spend some time with Baditude (one of our resident battery experts) and visit his blogs. You are 100% in control of your own safety (and others around you) when you use a mech mod and build your own coils. Make sure you purchase an ohm reader and a voltmeter or DMM so you can measure your builds, check for shorts and measure the remaining charge on your batteries.
Baditudes Blogs. The blogs regarding batteries and ohms law are listed below:
BATTERIES
9. Battery Basics for Mods: IMR or Protected ICR?
* Another essential read to understand which batteries are safe to use in mechanical and regulated mods. Includes a frequently updated list of recommended safe-chemistry, high-drain batteries with their specifications.
17. Purple Efest Batteries Not As Advertised
* A cautionary blog that reveals that the purple Efest batteries may not have the specifications advertised. Also includes a commentary on "continuous discharge ratings" vs "pulse discharge ratings" of battery specs.
OHM'S LAW
14. Ohm's Law for Dummies (Vapers)
* My attempt at explaining Ohm's Law in layman terms and how it relates to vaping.
16. Explain it to the Dumb Noob: Ohm's Law Calculations
* As simple as it is to use, some people have a tough time grasping the concept. Warning: Includes graphic photos of mod explosions.
I highly recommend you spend some time with Baditude (one of our resident battery experts) and visit his blogs. You are 100% in control of your own safety (and others around you) when you use a mech mod and build your own coils. Make sure you purchase an ohm reader and a voltmeter or DMM so you can measure your builds, check for shorts and measure the remaining charge on your batteries.
Baditudes Blogs. The blogs regarding batteries and ohms law are listed below:
BATTERIES
9. Battery Basics for Mods: IMR or Protected ICR?
* Another essential read to understand which batteries are safe to use in mechanical and regulated mods. Includes a frequently updated list of recommended safe-chemistry, high-drain batteries with their specifications.
17. Purple Efest Batteries Not As Advertised
* A cautionary blog that reveals that the purple Efest batteries may not have the specifications advertised. Also includes a commentary on "continuous discharge ratings" vs "pulse discharge ratings" of battery specs.
OHM'S LAW
14. Ohm's Law for Dummies (Vapers)
* My attempt at explaining Ohm's Law in layman terms and how it relates to vaping.
16. Explain it to the Dumb Noob: Ohm's Law Calculations
* As simple as it is to use, some people have a tough time grasping the concept. Warning: Includes graphic photos of mod explosions.
Hello and welcome to the forum. Glad to have you here!
I highly recommend you spend some time with Baditude (one of our resident battery experts) and visit his blogs. You are 100% in control of your own safety (and others around you) when you use a mech mod and build your own coils. Make sure you purchase an ohm reader and a voltmeter or DMM so you can measure your builds, check for shorts and measure the remaining charge on your batteries.
Baditudes Blogs. The blogs regarding batteries and ohms law are listed below:
BATTERIES
9. Battery Basics for Mods: IMR or Protected ICR?
* Another essential read to understand which batteries are safe to use in mechanical and regulated mods. Includes a frequently updated list of recommended safe-chemistry, high-drain batteries with their specifications.
17. Purple Efest Batteries Not As Advertised
* A cautionary blog that reveals that the purple Efest batteries may not have the specifications advertised. Also includes a commentary on "continuous discharge ratings" vs "pulse discharge ratings" of battery specs.
OHM'S LAW
14. Ohm's Law for Dummies (Vapers)
* My attempt at explaining Ohm's Law in layman terms and how it relates to vaping.
16. Explain it to the Dumb Noob: Ohm's Law Calculations
* As simple as it is to use, some people have a tough time grasping the concept. Warning: Includes graphic photos of mod explosions.
Please do your research before getting into rba/rda's and be safe. The last thing this community needs is more accidents from these things exploding. +1 for the previous advice
You wrapped a parallel dual setup did you?
Nice.
First post too. You know the answer.
Get thru the first 5 posts and get over to the coil-building forum.
T
Nice.
First post too. You know the answer.
Get thru the first 5 posts and get over to the coil-building forum.
T
Please watch this video. SuperX breaks it down so even I can understand Ohms, volts, and watts.
https://www.youtube.com/watch?v=QQbWVHSiltQ&list=UULWoUhjf61yHLlCuRfOHPuQ
https://www.youtube.com/watch?v=QQbWVHSiltQ&list=UULWoUhjf61yHLlCuRfOHPuQ
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I don't mess with any cell but the sony VTC5 30A for 18650 mech mods mainly because they are 30a CDR and 150A pulse there is proven test data to back this so a .17 build would be ok on these batteries I don't know what the pulse rate of the samsung 25R is but I would have to say somewhere in the 40's if I had to guess. I checked your build on my OHMS calculator and you are right at 25a on your build. If the 25r is only 20a CDR you're over the CDR. The sony will pulse 2 seconds at 150A draw and if I remember correctly like 10 seconds at 60A draw and a continuous draw of 30A which is firing your atty at a 30A draw until the battery goes dead. If your 25r or whatever series battery it is, only has a 2second at say 30A draw this would mean that you could fire the atty for 2 seconds at a 25A load then you're in the danger zone and going to experience a bad vaping experience mod possibly exploding in your hand and face isn't a good time. Get some legitimate performance data on the cells you want to use and a ohms law calculator app for your smart phone or computer, a ohms meter/voltage meter from like e-leaf and be sure you don't build beyond the spec's for that particular battery cell of choice. Vaping is fun and becomes an addictive hobby but you wouldn't race motocross without all the protective gear so don't vape without the right protective gear either. Best of luck and please vape safely!
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