You build to what you want and check the batteries your using can handle the amp draw.
So say a 0.5Ω build on a 4.2v fresh battery will be 35 watts drawing 8.4 amps - on a mech mod.
When the battery is at 3.7 volts its 27 watts at 7.4 amps, This is all in the steam site - under battery drain or nay ohms law calculator.
So you8 just get to know what resistance you like within the voltage range of your battery.
Thank you so much for your continued information Wolfenstark, I do appreciate it. I'm sure that by now, the people here have already gotten tired of me

hehe I just do want to be safe, and as I have seen, from everything I've read today, this upgrade is incredibly hard to comprehend in one day.lol Now, I only joke, there is no way that I would be able to figure this out in a day. I've read most of the articles I've had recommended, and I feel like I'm drowning in the deep end of a pool, when I thought I would be in the kiddie section. Its amazing just how in depth this is. First, the battery issue alone is terrifying. At the moment, I've been using these no name batteries with my Vamo V5 and V8's, and I felt that they were completely safe, as they were Lithium Ion batteries, but with a certain level of craftsmanship, but after having read up on the articles focusing on the dangers of battery failure, I am now surprised that I haven't had anything happen with my current system. The amount of smoking I do on this thing is tremendous, because as I had mentioned before, I have been using up a ton of e juice that was given to my by a nephew of mine, so I was going through tons of stuff that was 6mg strength, some at 3mg, and a few 12's, so I was literally all over the board. When I did buy my own, I made sure to get the strongest stuff I could, because I find that I am forced to limit the amount of vaping I can do, simply due to getting an upset stomach when approaching a nicotine overdose. This was a wonderful regulator for myself in the beginning, when all the liquids were store bought. Now though, I find that I can literally hit the Vamo all day long, when not playing a video game, or eating, other attention grabbing activities, so I would hit the pipe constantly, and never managed to feel the upset stomach warning. This alone makes me wonder how bad I was pushing those batteries. Sure, the Vamo would simply die and no longer create smoke when it was low battery time, and that was fine, but I wonder if the reason that the batteries died so soon at times was due to a high drain on my part.
Then, there's the new issue with batteries and the whole runaway overheating issue. This is truly horrific for me. I see the worst examples of what can happen to a person, and know that now I feel that I need to order a carbon fiber mitt of some sort to protect my hand while I really get a grip on this whole new setup. So while I did manage to buy a mod that I felt had great venting options, the FU hatton carbon fiber mod, I still worry now, because there are pictures of people's hands displayed where it seems that even venting the batteries didn't save their hands from horrible chemical burns. The pictures showing the results of the exploding mods were bad, really bad. So I've been reading what I can, and watching video's on YouTube to make sure I can avoid this problem as much as possible. The scary part is how I now need to learn the curve to safe battery usage. In the past, I simply used the battery until it no longer made smoke. Now, I worry that using the battery too long could damage it or myself, but similarly worry that if I charge the battery too often to avoid the lower voltages and amps, I may destroy the battery much to soon. I hadn't counted on the batteries being so expensive. And worse, now I have to also worry about the counterfeits. It's literally amazing to see just how many products we buy that can and often times are fakes. I had purchased the set of batteries I just ordered from a person who not only talks a pretty good talk about his batteries being authentic, but he also displays the pictures of what real ones look like vs what the fakes look like, to help ensure that your items are authentic, and he retains his high marks on Ebay, but now, thankfully Susan pointed out to me that these batteries, the Sony IMR batteries are apparently completely sold out or just not available due to a discontinuation. This means that even on the odd miracle that the batteries that I purchased are real, they will more than likely not be real any time in the future, due to them being obsolete or out of production.
As for the coils, those are apparently a bit less tricky. I found that everyone talks about Kanthal, so of course, I made sure that is what I got. And to get a better type, I purchased pre wound wire so that hopefully it is more durable, and has less likelihood of destroying my batteries. The wire seems to be legit, of course, seems is not near certain, as now I am questioning everything.lol I hopefully will get a bit of a better idea on how that wire is going to work, because I had to buy the pre wound type, with 24g and 26g kanthal, so I am a bit unnerved as to how this is going to be figured on any of the systems that are shown for estimating the ohms. As I can't be certain of the voltage on the batteries, if they aren't real, I worry that my entire formula is incorrect, as well as due to the lower potential continuous amps from possible counterfeits. I think at this point, this is the subject that has me the most worried. I did make sure to buy a multimeter ohms resistance checker from an online vape store, to hopefully be safer in that purchase, but of course, it could be a cheap fake also. I got the style with two different attach points, one for the 510 adapter, and the other for coils, to check them out as well, but I think I want to buy one of those that seems to be a nice round tube shape, that you screw on to the battery, as well as between the battery and the coils, to check the drop off in voltage or amps. It seems like those are very useful. I will be sure to buy one asap.
And what I had previously been worried about the most was the e liquid mixing itself. Making sure the formula was correct was a stressful endeavor. Hopefully, using two separate sites and using their calculators made me feel confident that I had found the right mix. It gave me, and don't quote me, I already put up the paperwork I printed out, but it was around 32 percent of the 75mg/ml nicotine, fifteen percent or so flavoring, and the rest in the 60/40 blend of the vg pg. This was to give me a good strong 24mg nicotine liquid, and with the amount of nicotine I purchased, the 250ml bottle, using the calculator and my own figures, this should give me around 26 bottles of 30ml fluid. This would all cost around 3.64 in liquids total, and around .49 cents per plastic 50ml container with the nice metal drip tip, so that I have plenty of space in the bottle for shaking it up to get it nicely blended. I went ahead and used the ratios given to me by the calculator, and mixed myself up one 30ml bottle of e liquid/juice, and have it in a nice dark and cool area, so it can blend well, and I shook it enough to get it full of nice little bubbles, so it properly aerates. Now I figure I'll leave it at least until some time tomorrow to try it out, but the directions I saw online on YouTube said that it would take around five days to fully flavor, so I have time to wait to see how it blooms

hehe I think they called it steeping the bottle. Not sure

So pretty much, I have until late next week to find out if I can learn everything else there is to learn about the mods, using the batteries safely, hoping that I didn't get taken for a fool on those Sony Hybrid batteries. I have different types of coils coming, the Little Boy Carbon Fiber RDA comes with a few ready made coils and some nice Japanese cotton, so I'm interested in seeing how long the cotton lasts, because I made sure to buy some Ekowool, the stuff that is purely synthetic, to see if that will last longer than normal cotton. To this day, most of the coils I have purchased seem to die an early death due to the cotton turning black, and making the liquid disgusting. Basically, this means I have two different types of wick material to try out, the Japanese cotton and the ekowool, three types of coils, the ready made ones that come with the RDA, the twisted kanthal wire I purchased, and some single wire kanthal I have as a bonus for something else I purchased.
It sort of feels like a mini Christmas, due to the huge number of new little toys I got, but hopefully, this investment is going to save me a ton of money over the long haul, as the coils I buy right now, whether they be the Kanger mini type coils, or the Aspire nautilus BVC or BVD type coils are around fifteen dollars per five, and can be up to 25 per five coils. Worst on those, they don't last more than a few days at the rate that I hit the Vamo. And of course there is the savings in the cost of the eliquid to look forward to. I was having to spend 20 dollars per 30ml bottle, plus gas to get to the local vape shop a good twenty minute drive away from my home.
But through this all, I have been fortunate enough to have you wonderful people here to give me advice and help transition myself from being a Vamo vaper, hopefully to a full on mod vaper, so I can make big boy smoke, without big boy costs

hehe I am sure to get on again in the morning, after getting some sleep, to begin going over the hard parts again, because I am nowhere near the level of knowledge that I need to have on the subject, but it's been a rather fun ride. Thank you for taking the time out of your day to help a stranger, I know that most people probably don't bother thanking you guys, so I'm going to be sure that I do my part, because I've gotten enough information to warrant a membership fee

I can safely say that I would not be comfortable without having first spoken to all of you, Susan, yourself, and the others are great people and hopefully new friends! Please feel free to get in touch with me at any time, it will be nice to continue learning from everyone, I am not the proud type that wants everything to be my way. I am much more comfortable when I have the advice from people that know what they are doing. It's the reason I ask for specifics, not because I'd like to place the blame on someone for their information, but because I know that the information I'm being given can save my lots of pain and suffering, as well as a ton of money, by not having to buy a ton of books on the matter.
So again, Thank you guys, all of you, I am truly happy to be here and hope that I'll continue to hear from you!

And by the way Wolfenstark, I absolutely love your home country and hometown. Australia is a dream to me, I don't know what it is, but the Aussie accent drives me nuts, I would love to one day visit Sydney. I am sure within a few hours, I would be in heaven

Are the stories of monster spiders true? Where spiders are lurking everywhere, waiting to pounce?

I've had people talk about how they hear these type of things so often, the stereotypes, that they had to join in by adding that they drive their kangaroos to work.hehe Apparently, the rumor squashing involves the use of tons of apparent fallacies.hehe