Are there specific chargers that need to be used for batteries like the Samsung INR18650 you described?
Sub-Ohm Newbie Question
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Are there specific chargers that need to be used for batteries like the Samsung INR18650 you described?
Would this do the trick? It says its compatible with the 18650
Amazon.com: NITECORE i2 (New 2014 version) Intellicharge universal smart battery Charger For Li-ion / IMR / Ni-MH/ Ni-Cd 26650 22650 18650 18490 18350 17670 17500 17335 16340 RCR123 14500 10440 AA AAA AAAA C types, with 2 X EdisonBright AA to D type battery spacer/converters (2 Bay version of i4): Electronics
Amazon.com: NITECORE i2 (New 2014 version) Intellicharge universal smart battery Charger For Li-ion / IMR / Ni-MH/ Ni-Cd 26650 22650 18650 18490 18350 17670 17500 17335 16340 RCR123 14500 10440 AA AAA AAAA C types, with 2 X EdisonBright AA to D type battery spacer/converters (2 Bay version of i4): Electronics
Thats one of the chargers I use. But, don't buy batteries or chargers from Amazon or eBay unless you completely trust the seller.
This is another charger I have, purchased from here:
Nitecore D2 Digicharger - Chargers - Batteries, Chargers, and PowerPax Carriers
Shop around there and see what you like.
I have a question for ya Speedy. I was looking at charts earlier today for the max wattage/voltage certain resistance atomizers can take before they "burn out". For my istick with the nautilus mini 1.8 ohm atomizer it was saying my max voltage is 3.9V (AKA 8.45 Watts). This means id be pulling 2.1 amps from the battery. The battery has a CDR of 4.87. Seems like theres a lot of wiggle room for the battery there. So should i go by the amount of Amps the battery can safely take to determine where i can safely maximize how much im vaping? Or should i be looking at how much the atomizer can handle according to these charts?
Do the easy thing...go to RTD Vapor and buy Sony or AW IMR batteries and a charger. They list the amp ratings, higher is safer.
Thanks for the advice ElConquistador, i will check them out. Im really curious about what i was asking Speedy though. What should i be focusing on; The amount of amps the battery can handle, or how many volts/watts the atomizer can handle? Or both?
If anyone hasn't recommended this yet, you might want to check out a blog from a ecf member called Baditude, the blog post is all about battery safety, which batteries you should get and stuff about ohms law, resistances, how they act and such. Sorry for not linking it here, but I can't find the link on my mobile but I'll post it here when I'm on my computer 
I ask this because i was vaping this eleaf stick and nautilus mini tank at 4.7 volts and didnt taste any burning or anything bad at all. Comparing that to what the chart i saw said about the 1.8 ohm atomizer being able to handle (3.9V).
If anyone hasn't recommended this yet, you might want to check out a blog from a efc member called Baditude, the blog post is all about battery safety, which batteries you should get and stuff about ohms law, resistances, how they act and such. Sorry for not linking it here, but I can't find the link on my mobile but I'll post it here when I'm on my computer
Thank you Lova! I would really love to read that post.
Actually, I found his whole blog list, here you go: (18) Baditude's Blogs | E-Cigarette Forum
Thank you everyone for all the help. I think I have enough information to feel comfortable vaping with the sub ohm setup safely. I ended up buying two of the
2 Samsung INR18650-25R 18650 2500mAh 3.6v Rechargeable Flat Top Batteries. I dont need any more power than that to start off. Those have a 20 AMP max and i feel like thats more than enough for me. I cant imagine ill be vaping any higher than 7v with that .5 resistance stock atomizer. That puts me at 14 AMPs.
My only question I have left is how close can i get to the max AMP that the battery can handle while still being safe? 3/4 of the max? 1/2?
2 Samsung INR18650-25R 18650 2500mAh 3.6v Rechargeable Flat Top Batteries. I dont need any more power than that to start off. Those have a 20 AMP max and i feel like thats more than enough for me. I cant imagine ill be vaping any higher than 7v with that .5 resistance stock atomizer. That puts me at 14 AMPs.
My only question I have left is how close can i get to the max AMP that the battery can handle while still being safe? 3/4 of the max? 1/2?
This is a very tricky question and I will try to make it simple.
The 2.1 would be at a set voltage of 3.9.
When the battery is full this is fine.
As the battery gets weaker the mod still wants 3.9 but the battery is 3.7 now so the chip actually pulls more amperage from the battery and turns it into voltage .
Depending on how efficient ( or not) the chip is it could end up asking for more then that battery can deliver.
The other question- I usually go to 75 -80% of a cells rating, some people say 50%
Usually leaving a 20-30% headway is concidered safe, but Samsung 25R:s are rated 100A max pulse discharge, so in theory, if you took <1second drags you should be safe with 5-10% headway (16-18A max continuous discharge)
But you shouldn't really look at max pulse discharge when vaping, just the max continuous discharge. I personally use 35A batteries down to 0.15-0.2ohms, so 21A with fully charged (4.2V battery with no voltage drop) with the 0.2ohm build and 28A with 0.15ohm coils.
I suggest you also invest in a good charger,like the Luc V4 or Nitecore I4 or D4 for the batteries as usb charging them on a mod is kinda iffy in my opinion. If you plan on building your own coils, invest in an ohm meter also, those are cheap way to keep your hands intact.
Edit: Corrected specs
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The 10/13 datasheet lists a "max. momentary pulse" rating of 100A for a pulse width of <1 second.
Less then 1 second..............
That should never ever ever have anything to do with a conversation around vaping.
The Samsung inr is used in cordless tool powerpacks and this is a trigger buffer so the cell is not damaged in the time it takes for the power pack overload switch to activate in a situation like the tool is jammed or overheating.
That is just for an unavoidable spike. There is no way it can continually sustain that type of abuse.
I went and dl'd the PDF, so I believe you.
No offense, I want happy, healthy and safe vapors so I had to ask
Carry on with the regularly scheduled thread
That should never ever ever have anything to do with a conversation around vaping.
The Samsung inr is used in cordless tool powerpacks and this is a trigger buffer so the cell is not damaged in the time it takes for the power pack overload switch to activate in a situation like the tool is jammed or overheating.
That is just for an unavoidable spike. There is no way it can continually sustain that type of abuse.
I went and dl'd the PDF, so I believe you.
No offense, I want happy, healthy and safe vapors so I had to ask
Carry on with the regularly scheduled thread
And that is pretty much exactly what I said in my comment which mentioned the 100A max pulse rating. And none taken, I just mentioned it and added that it should not be used with vaping.Less then 1 second..............
That should never ever ever have anything to do with a conversation around vaping.
The Samsung inr is used in cordless tool powerpacks and this is a trigger buffer so the cell is not damaged in the time it takes for the power pack overload switch to activate in a situation like the tool is jammed or overheating.
That is just for an unavoidable spike. There is no way it can continually sustain that type of abuse.
I went and dl'd the PDF, so I believe you.
No offense, I want happy, healthy and safe vapors so I had to ask
Carry on with the regularly scheduled thread
Vape safe and vape on everyone!
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